Exam Details
| Subject | agricultural engineering | |
| Paper | ||
| Exam / Course | mains | |
| Department | ||
| Organization | maharashtra public service commission | |
| Position | ||
| Exam Date | 2012 | |
| City, State | maharashtra, |
Question Paper
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A
SPACE FOR ROUGH WORK
1. Complete the following sentence meaningfully_
The pressure or head developed by a given centrifugal pump in a sprayer at a particular speed is a function of
Pump capacity Total head
Spray volume Discharge rate
2. At what temperahIre standard thermostat valves are designed to fully open 7
70°C 75°C 85°C 82°e
3. How much is the air compressed in a compression stroke of 4 stroke diesel engine)
1/6th of engine volume 1/5th of engine volume
1/10th of engine volume 1/121h of engine volume
4. Where are the centrifugal governors very common?
carburator engine stationary engine
gas engine both and above
5. What type of furrow openers are widely used in seed drills?
shovel shoe single disc double disc
6. What are the essential spare parts of the duster to be kept in stock?
Agitator Feeding brush
Breast plate Feed control lever
and and
and all of these above
7. What type of seed metering mechanism is common on British seed drills?
fluted feed internal double run
cup feed star wheel
8. What is the power actually required to pull or move the implement at a uniform speed, in relation to either a pull type or a mounted implement known as
Horse power Pto power
Drawbar power Hydraulic power
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F02 • 4 A
9. What is the force that holds two particles of the soil of the same kind together? adhesion interna1 friction cohesion shearing stress Which of the above options is/are correct? and only only only only
10. What is dropping of the seeds in furrow lines in a continuous flow and covering them with soil called
drilling dibbling broad casting none of these
11. Fill in the blank correctly.
Fan -spray and hollow -cone nozzles employed on boom -type field sprayers generally have spray angles (i.e. included angle of the cone or fan) of
60 to 95° 100 to 150° 30 to 45° 10 to 30°
12. How many man hours are required to harvest one hectare of paddy crop?
170 -200 170 -190
190 -210 None of the above
13. Which type of brake is used in most of the power tiller?
Outer side expansion type Inner side expansion type
Both side expansion type None of the above
14. What does pneumatic tyre consist of Breakers Casing Beads Plies
only and and all of these
SPACE FOR ROUGH WORK
A 5 F02
15. Complete the following sentence meaningfully: Tn 1.c. engine Tappet clearance is the clearance between:
Rocker arm and push rod
Tappet 'lll.d the cam
Valve head and the piston head
Rocker and valve stem
Which of the above is/are correct
and only only only
16. Fill in the blank with the correct option.
In rotary dusters, the handle should be cranked at revolutions per minute for efficient performance.
15-20 30-35 45-50 10-15
17. What is the working capacity of wheel hoe per day per man?
0.04 ha 0.U5 ha 0.06 ha 0.65 ha
18. What hitching system connects mounted implements to a tractor?
DraVl7bar PTO shaft
2 lower links 3 point linkage
19. Which of the following affects the tractive efficiency?
slope of land hitch height
shape and size of lugs all the above
20. The few adjustments for obtaining higher penetration of the disk harrow in the field are:
By decreasing the disk angle
By adding additional weight on the harrow
By increasing the disk angle
By using the sharp edged disks of small diameter and lesser concavity
Which of the above statements is/are correct
and only and only
only and only
SPACE FOR ROUGH WORK
P.T.D.
21. In what type of fuel injection pump, one pump serves as a nozzle for several cylinders?
Jerk pump Distributor pump
In line jerk pump Unit injector
22. Fill in the blank aptly:
The rate of circulation of the water in a water pump in forced circulation water cooling system should not be less than
5ljBHPjmin. 0.5 ljBHPjmin.
15ljBHPjmin. 0.1 ljBHPjmin.
23. What converts the reciprocating motion of piston into rotary motion of flywheel
Piston rings Connecting rod Crank shaft Cam shaft
24. What type of cultivator is suitable to operate in stony, stumpy, hard soil having roots as obstacles in the adverse field condition?
Spring loaded tines Rigid tines
Duck foot None of these
25. What serves as a pulse transformer that transforms or steps up the low voltage to high voltage necessary to jump across gaps at spark plugs?
Ignition coil Condenser Distributor Generator
26. Which of the following tests is not an essential test of tractors?
Centre of gravity Turning circle
Noise measurement Drawbar test
27. In tractors how is the weight transfer expressed as pull x hitch height pull x wheel base
wheel base hitch height pull pull -hitch height
wheel base wheel base
28. Which brake system is based on the principle of Pascal's law?
Disc brake Internal expanding shoe
External contracting shoe brake Hydraulic brake
29. What is the specific draft requirement of tandom disc harrow?
3.6 to 5.8 KN/cm2 6 to 9 KN/cm2
9 to 12 KN/cm2 12 to 15 KN/cm2
30. To what volume is a tank filled with liqUid in compression sprayers
3/4th volume half capacity 2/3rd volume L1f'lce]
31. Spraying pattern of nozzles used in high pressure high volume spraYtT pattern.
cone shape round shape square shape
32. Engine fails to develop full power because of
Air cleaner clogged Poor compression
Overheated engine Cylinders misfiring
only and
and All of these
33. Fill in the blank correctly.
A clutch pedal moves freely for short distance before it begins to pull clutch p!i1tes apart this distance is called "Free travel", which may vary between rnm
10 -15 12-50 52 -60 7U-bU
34. What is the grain damage by thresher due to
less clearance between cylinder and concave
very dried crop
high speed rate
none of the above
SPACE FOR ROUGH WORK
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35. What does the duster essentially consist of to apply chemicals in dust form on the plants?
Hopper, pressure gauge, pump, hol1mv cone nozzle and strainer
Hopper, agitator, feed control, blower and pump
Hopper, agitator, feed control, blower and delivery nozzle
Hopper, pump, agitator, blower and flat fan nozzle
Which of the above is/are correct?
and lb) only only
only none of the above
36. The clearance betvveen what is the clutch free play related with?
The release bearing and clutch plates
The release bearing and the stmt
The release bearing and the spring
The release bearing and the fingers
37. What are three main forces or force systems that must be in equilibrium to which a tillage implement moving at a constant velocity is subjected?
Gravity forces, soil forces and forces acting between implement and prime mover
Soil forces only
Gravity forces, soil forces and forces acting between implement and soil
Soil forces and forces acting between implement and soil
Which of the above statements is/are correct?
only only
and only and only
38. Which is a direct solid injection system of fuel injection?
common rail system air injection system
fuel pressure system no rail system
SPACE FOR ROUGH WORK
39. What are the three types depending upon the types of notches on the seed metering plJtes in a planter?
cell drop, flat drop and hill drop
seed drop, cell drop and drop
seed drop, flat drop and cell drop
flat drop, edge drop and hill drop
Which of the above statements islJre correct?
and only only
only only
40. What is achieved by calibration of the seed drill
correct depth of seed in the soil
correct distance between the rows drilled
correct seed rate per hectare of crop
correct speed of sowing the seed
Which of the above statements islare correct
and only only
only only
41. On the basis of what characteristics a specific gravity seed separator is used for grading the seed?
same size but different specific gravity
same size and same specific gravity
different size and different specific gravity
different size but same specific gravity
42. Where does spoilage of grains in summer conditions take place 7
Top of the bin Bottom of the bin
Side of the bin All of the above
43. What is the destruction of all micro -organisms in food materie11 by thermal processing known as?
Pasteurization Sterilization Blanching ScaldJ1lg
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F02 10 A
44. What is the characteristic of milled rice obtained from parboiled paddy compared to raw rice?
is "/hiter and contains more vitamin 81
require less cooking time and contains more vitamin
gives higher head yield and contains more vitamin
has Inore oil in bran and contains less vitamin BI
45. What sublimes the watervapour from frozen food?
Contact drying Vacuum drying
Freeze drying All of the above
46. For high capacities and fairly cheap means of vertical conveyance of grains, which type of material handling device is commonly used?
Belt conveyor Bucket elevator
Screw conveyor Pneumatic conveyor
47. What is the difference between dry bulb temperature and wet bulb temperature called?
Dry bulb depression Wet bulb depression
Dew point depression Degree of saturation
48. What is the shape of perforated deck of specific gravity separator?
Triangular Rectangular Circular Hexagonal
49. If the fruits are having egg shape and are broad at the stem end, they have shape.
oblate oblong ovate obovate
50. What is the ratio of diameter of the largest inscribed circle to diameter of the smallest circumscribed circle called
Roundness Sphericity
Roundness ratio None of the above
51. Which storage structure is used as transit storage and serves the purpose of storage of food grains for a short period
Bunker storage Bukhari storage
Pusa bin storage CAP storage
52. What can achieve concentration of highly heat sensitive material?
Vertical tube evaporator Horizontal tube evaporator
Falling film evaporator Plate evaporator
53. What indicates the relative proportions of the coarse, medium and fine particles 7
Fineness modulus Uniformity index
Average particle size Effectiveness
54. What is the maximum degree of inclination from horizontal upto which a screw conveyor can be used?
55. What is the amount of steam consumed to evaporate 1 kg of water from food in a drum dryer?
0.3 kg 1.3 kg 3.0 kg None of these
56. At what speed do hammers rotate in a Hammer Mill
1200 to 7000 rpm 1500 to 4000 rpm
1000 to 1500 rpm 700 to 1000 rpm
57. In milk processing, homogenizer is used to reduce the fat globules size to
Less than 2 millimetres Less than 20 millimetres
Less than 2 microns None of the above
58. Match the following:
Deep bin design Moisture accumulation at bottom
Shallow bin design Moisture accumulation at top
Winter moisture migration Rankines theory
Summer moisture migration Janssen's Equation
SPACE FOR ROUGH WORK
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F02 12 A
59. Complete the sentence correctly. The spiral separator separates the grains as per their .
Size Shape Roundness Sphericity
60. Fill in the blank correctly.
The Equilibrium moisture content is determined at constant relative humidity and conditions of air.
pressure volume
temperature None of the above
61. In a body when stress is directly proportional to strain, what is the relationship known as?
Newton's law Hook's law
Kelvin model Maxwell model
62. Which equation can estimate the average particle size, DP in mm represented in terms of fineness modulus [F.M.]
DP 0.135 [1.366]F.M. DP 0.135 [3.166]F·M
DP=0.315 [1.366]F.M. DP=O.315 [3.166]FM.
63. At what relative humidity, the dry bulb temperature, wet bulb temperature and dew point temperature of moist air are the same
1 percent 50 percent
100 percent Difficult to predict
64. What is the number of molecular weight of solute expressed in kg in 1 m3 of solution?
Molar concentration Mole fraction
Both and None of the above
65. What will be the moisture content on dry basis if the moisture content of paddy on wet basis is 20%
20% more than 20%
less than 20% none of the above
A 13 F02
66. Wh<:lt is the removal of foreign and undesirable matter from the desired products ccdled as
washing cleaning sorting
M-Me
67. is known as
Mo -Me
where, M=Moisture content,
Me EMC,
Mo Initial Moisture Content,
Critical moisture content Moisture ratio
Equilibrium moisture content Drying rate
68. Complete the sentence.
A stream of product to be dried is very finely atomized in a stream of hot air is a general principle of .
Vacuum dryer Spray dryer
Tray dryer All of the above
69. Fill in the blank with the appropriate option.
In homogenization process of milk increases with increasing honwgenizing pressure.
Viscosity Total soluble solids
Acidity pH
70. What is the most commonly used refrigeration system nowadays?
Vapour compression refrigeration
Vapour absorption refrigeration
Electrolux refrigeration
Steam jet refrigeration
71. What reduces the size of food grain in an attrition mill
Impact and shear Crushing and shear
Impact and crushing Impact only
SPACE FOR ROUGH WORK
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72. Fill in the blank with the correct option. During a refrigeration cycle, heat is rejected by a refrigerant in a
compressor condenser
evaporator expansion device/valve
73. What is the cheapest conveying equipment to convey bulk grains over large distance?
Belt conveyor Screw conveyor
Bucket elevator Pneumatic conveyor
74. How are the equilibrium moisture curves or grain isotherms generally?
S -shaped L -shaped Straight line V -shaped
75. What is the meaning of equilibrium moisture content?
The moisture content of the centre of the product when it is in equilibrium with the surface.
The moisture content of the product when it is in equilibrium with the surrounding atmosphere.
The moisture content of the product when it is less than surrounding atmosphere.
The moisture content of the product when it is higher than surrounding atmosphere.
76. What requires high power and may cause damage to conveyed material?
Chain conveyor Pneumatic conveyor
Belt conveyor Screw conveyor
77. How does the screw conveyor generally move the grains?
Vertically Horizontally
Inclined None of the above
78. Fill in the blank with the correct option. Centrifugal discharge is used extensively for handling small grains in
belt conveyor chain conveyor
screw conveyor bucket elevator
..
79. 1-RH=e-CI whZlt equcltion is this?
c
Where, RH Relative Hl1midltv, decil1lZlI;
T Absohlte tel1lperclturt',K;
lvIe=Equilibrium moisture content, C and n=constant
BET equC1tion Gibb's equation
BC1ker and i
kel1lC1 equcltion Henderson's equation
80. What does the constant rate drying period depend on
Area exposed.
Difference in hL11nidity between air and wet surface.
Coefficient of mass transfer.
Velocity of drying Zlir.
only (al and only and
only and
81. The Khadi Village Industries Commission (KVlC) biogas model is of which type)
biogZls plant Floating gas holder
Fixed dome digester Mobile biogas plant
82. Vhich instrument is used to measure the direct and diffused radiation in terms of energy per llllit time per unit area on horizontal surface?
Thermometer Pyranometer
Anemometer Sun shine recorder
83. From what can biogas be produced?
Cow dung Poultry droppings
Plant garbage Flesh of carcasses
and only
and all of these
SPACE FOR ROUGH WORK
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84. Fill in the blank correctly. Step-up transformer receives energy at one voltage and delivers it at a voltage.
Len-ver Higher Same Zero
85. What is a universal ITlOtor
is available universally
can be marketed internationally
can be operated either on dc or ac supply
runs at dangerously high speed on no load
86. What are the steps as per generally recognized strategy for site selection of ,-vind mill installations?
Survev of historical wind data is done.
Contour maps of terrain and wind are consulted.
Potential sites are instrumented for approximately one year.
Optimal site is chosen.
and and
and and
87. How many fold increase in the available wind power will there be, if the diameter of a rotor of horizontal axis wind mill is doubled?
2 4 6 8
88. Complete the sentence. The surface azimuth angle varies from
0° to 180° to 270° to 180° -180° to 360°
89. What is the calorific value of biogas in kcal per cubic meter?
3000 3700 4700 5500
90. What is the range of voltage applied to the electrical fence?
6000 to 15000 volts pulsating 6000 to 15000 volts continuous
1000 to 6000 volts pulsating 1000 to 6000 volts continuous
91. What for is a fuse provided fur electric circuit?
safe -guarding the cirlLllt ,1gainc;t heavy current
decreasing current flovving in circuit
increasing current fleming in a circuit
decreasing power consumption in a circuit
92. Fill in the blank. In fixed dome type biogas plant, gas availability is at pressure.
Atmospheric Constant Variable these
93. Which of the following is not a part of flat plate solar collectors?
Transparent cover Absorber plate
Insulation Heliostat
94. India is having about 10 rnillion motors with average rating of 3.7 kW. If t1w l'lfllJcllCV is increased from 80% to how much power will be saved per year, considering :1l1llual use of 1000 hrs
2.96 billion kWh 4.62 billion kWh
5.'14 billioll kW]l 0.9 billion kWh
95. Wind mill operated piston pump is suitable for which form of irrigation?
well bore hule dam nver
and and
and all the above
96. Fill in the blanks appl'Opriatcly.
Wind speed with height; at the height of 10 m was found to be
than that close to the ground
increase; 5 higher decrease; 5 lower
increase; 20 -25"" higher decrease; 20 lower
SPACE FOR ROUGH WORK
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97. Fill in the blank correctly.
Methane bacteria work best at a temperature range of for optimum biogas production.
10-200e 35 -38°e 5-15°e 40-50Ge
98. Which of the following are the direct or indirect applications of solar energy?
Solar water heating Space cooling
Wind energy Solar cooking
only and
and all of above
99. What is the major obstacle to increase the use of solar irrigation systems?
It cannot be operated in rainy season
Relatively high capital cost
Relatively high operational cost
Pumping may be intermittent
100. What is the relative requirement of the Savonius rotor machine due to which it has become popular, since operation?
high velocity wind low velocity wind
low maintenance moderate velocity wind
101. What type of windows are provided on the sloping surface of a pitched roof?
Clerestorey Bay Lantern Sky lights
102. Fill in the blank with a correct option. A king post truss is suitable for roofs of span varying from
2mto5m 5mto8m 8mto 11m 12mto15m
103. Which flooring material is used in the parquet flooring?
Magnesite Asphalt Timber Plastic
104. How much percentage of photosynthetically active radiation is transmitted on an average into the greenhouse by UV stabilized polythelene
57 67 77 87
A 19 F02
105. In green house cultivation, temperature at which plant can grow depends upon 7 Species Radiant energy Carbon dioxide concentration All of these
106. What is the solid ground on which the foundations rest called? Footing Plinth Foundation bed Super -structure
107. Fill in the blank with one of the options given below.
The doors should preferably be located near the corner of a room, at a distance of about
300 mm from the corner. 250 200 150
108. What tests the soundness of cement? Air permeability method Vicat's apparatus Le -chatelier method All of the above
109. In which case is the service life of green house covering material highest?
Acrylic sheet
Polycarbonate sheet
Fibre glass reinforced plastic panels
Polyethylene sheet
110.
Fill in the blank with the appropriate option.
111.
What is the minimum clearance required between the bottom of a vertically driven turbine type pump and the floor of the jack well
The crushing strength mm2. of a good structural stone should be greater than
100 75 50 25
1m 1.5 m 2 m 2.5 m
112. What is the recommended safe land slope in heavy soils for land levelling to have efficient irrigation
0.20 to 0.40% 0.25 to 0.60% 0.05 to 0.20% 0.50 to 0.70%
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113. If H is the head of water above the V -notch, then the rate of flow through V -notch varies as
H5/2
H .JH
114. What should be the hypothetical discharge of 10 HP pump working at the efficiency of 75% andattheheadof75m
lalit/sec 12.50 lit/sec 7.50 lit/sec 15 lit/sec
115.
The formula 0.61 X 10-3 a is used to find discharge through circular orifice under free flow condition. Here, h is expressed as
116.
What is the most appropriate mechanically operated equipment for the fine grading of small and medium size fields?
Vertical distance between bottom of channel and top of floor.
Difference between upstream and downstream water level.
Vertical distance between bottom of orifice and top of flow.
Vertical distance between centre of orifice and top of flow.
bull dozer two wheeled automatic leveller
carrier type scrapper wooden float
117. What must be the depth of the tile lines for the usual channels serving as outlets?
0.60 m or less always 0.90 m
1.2 m or more 3.0 m or more
118. What is the pressure drop usually allowed in a media filter?
1m 2m 3m 4m
119. The pressure head in a sprinkler system is converted into velocity head at
the sprinkler head the sprinkler jet
the nozzle the riser
120. How are the constantly flowing wells due to high hydrostatic pressure within confined aquifers classified as
Pearched wells Piezometric wells
Sinking wells Artesian wells
A 21 F02
121. Drainage chann.el discharges 0.1 cubic metres of water per second and drains 360 hectares, vvh3t is the dr3inage coefficient of this land 7
2.4 mm 4.9 n1n1 9.9 mm 5.9 mnl
122.
What will be the formation level of upper and lower grid from centroid in the following case 7
123.
What is the method of land levelling design; restricted to those fields where it is feasible to grade the field to a true plane?
centroid 100 m
slope 0.2%
Grid distance 30 m
100.30 m and 99.70 m 100.60 m and 99.94 m
101.20 m and 98.80 m 103.00 m and 97.00 m
plane method profile method
plan inspection method contour adjustment method
124. Which equation gives the leaching requirement for the salt affected soil
Dd ECd Di ECi
Di ECi Dd ECe
125. What is the line which gives the sum of pressure head and datum head of a flowing fluid in a pipe with respect to some reference line, known as
total energy line datum line
hydraulic gradient line reference line
.._..._.
126. What is the ratio between the actual velocity of a jet of liqUid at vena -contracta and the theoretical velocity of jet called 7
coefficient of friction coefficient of discharge
coefficient of contraction coefficient of velocity
127. How is the safe agricultural dred categorised as per the working group on problem identification in irrigated areas constituted by the Ministry of Water Resources Govt. of India (MOWR 1991)
Water table touching the bnd surface.
Water table between 2 to 3 m from land surface.
Water table belm! 3.0 m from land surface.
Water table within 2.0 m from land surface.
SPACE FOR ROUGH WORK
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F02 22 A
128. What is generally the diameter of observation wells for pumping tests of wells? less than 2.5 m ranging between 2.5 to 5 em mare than 5 cm about 30 cm
129. What is the relationship between duty delta and base period
8.64 B
Li= if B in days and D in ha
8.64 D
Li= B if B in days and Din ha
Li x if B in days, D in ha and T pump working hrs per day DxB
Li= 8.64x 2hx3600 ifBindays,Din ha
27.78
130. Complete the following sentence meaningfully. Flow through channel is said to be steady, when velocity of flow is
constant at point over length constant at point over time
varying at point over length varying at point over time
131. What is the condition for the trapezoidal channel section to be most economical?
(m=hydraulic mean depth and d=depth of fluid) d mdm
22 44
132. Where the gravel filter and the base material are more or less uniformly graded for gravel envelope, without a lack or excess of certain particle sizes, a filter stability ratio is generally safe, when it is
less than 5 mare than 5 more than 7 none of these
133. Which of the following components of canal system is supposed to be maintained by farmer?
Distributary Water course Minor Branch canal
A 23 F02
134. What for are propeller pumps specifically adopted?
low h.eud and high disdlarge operations
high head unci low disc:1Z1Tt.;to oper.ltions
high 11ead ,mel high discharge operations
low head and low discharge operations
...
135. At what flexibility the caru] n'1tld icc
to be hyper proportionJ] 7
less them unity
equal to unity
none of these
greater than unity
136. What is the structure known as when the fIFL of the drain is sufficiently below the bolrw!I of the canal so that the drainage water flows freely under gravity?
syphon aqueduct canal syphon
aqueduct super passage
137. What does duty of any crop signify?
it is a discharge in curnec base period.
it is a period in days for which one cumec discharge is released.
it is an area in hectares irrigated by one cumec discharge released tor base period for that particular crop.
it is discharge in to released for 100 ha areJ for that D'1rllcul))" crop.
138. What is the suction limit of a centrifugal pump?
10 m 21 III 6m 35 m
139. What are the characteristics of shallow tube wells?
high capacity and depth th,nt 35 In
low capacity and depth less than 35 rn
high capacity and depth between 60 -300 Tn
low capacity and depth between 60 -300 m
140. Which one of the following equations is used to determine the velocity of flow where L=distance, c":,dudi"it m/dav; (h1 -h,»)··-=celcvation differenG' in
water table, m
K(h K.L
V 1 L m l en m/day
L(h1 K(h1
!11/dav m/sec
J
K L"
SPACE FOR ROUGH WORK
rTn
F02 24 A
141. What is the stream which becomes dry soon after the end of rainstorm referred as intermittent stream perennial stream ephemeral stream influent stream
142. Which of the following is the economic flood control structure in the earthen dike like form?
Retarding basins Close conduits
Retaining walls Levees
143. What is the remedial measure of controlling reservoir sedimentation that becomes economically impracticable?
removal of sediment deposit control of sediment inflow
design of reservoir watershed erosion control
144. Which one is the common suspended load sampler?
Pumping sampler Core sampler
Width sampler Open sampler
145.
How is the weighing factor defined as, in Thissen polygon method of determination of average precipitation over an area?
Polygon
146.
What is the capacity of each compartment of tipping bucket type raingauge
Total area Polygon area X Total area
Total area Point rainfall
Polygon area Average rainfall
0.20 mm rainfall depth 0.25 mm rainfall depth
0.30 mm rainfall depth 0.50 mm rainfall depth
147. The 3 1 and 4 1 side slopes towards upstream and downstream, respectively should be provided to earthen dam for which type of soils?
Well graded soil Average quality fill material
Relatively coarse fill material Coherent soil
A 25 F02
148. What is the value/range of moderate intensity based on the falling rate of raintall 2.5 mm/h 2.5 to 7.5 mm/h 7.5 to 15.0 mm/h 15.0 to 22.0 mm/h
149. When isolated bodies of resistant rock from prominent hills are found above the subdued surface, which phase occurs
Inequilibrium Equilibrium Hypsometric Monadnock
150. What is the value of bifurcation ratio if, the number of streams of order u are 15 and order are 4
0.27 0.72 0.75 3.75
151. In what form the relationship between rainfall and runoff for large catchments exists 7
linear logarithmic
exponential none of the above
152. Which shape of grassed waterway amongst the following is hydrologically more efficient and easy to construct
Triangular Trapezoidal Half -circle Parabolic
153. In which soils will the soil erosion be highest?
soil under cultivated crop soil surface covered by plant canopy
soil surface under grass cover soil surface under forest cover
154. What is the term for lines joining all prints in a basin by some key time elements in a storm?
Isobaths Isobars Isochrones Isohyetes
155. As per the FAG 1965 recommendation, what should be the width for wind -strip cropping for sandy loam soil?
6 m 85 m 30 m 105 m
156. Watersheds A and B have same area, but A has greater stream density than that of B. Which watershed will yield higher peak runoff
A and B equally None of the above
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157. When will the width of bench terrace be more, for a predetermined depth of cut?
when batter slope is 0.5 1 when batter slope is 1 1
when batter slope is 2 1 when batter is vertical
158. What should be the non -erodible velocity for sandy soils?
0.25mjs 0.50mjs 0.75mjs 1.0 mjs
159. In general, what should be the maximum limit for a continuous terrace length, provided that the terrace should carry the runoff in only one direction.
400tc500m 600to800m
0.8to1 km 200to400ft
160. What is the value of constant of channel maintenance if, the drainage density of basin is
0.005 mjm2
100m 200m 300m 400m
161. Fill in the blank with the appropriate option. Side slope in contour and graded bund is designed on the basis of
bund height bund base width
slope of seepage line angle of repose of soil
162. Why is soil loss estimation equation referred as 'universal soil loss equation'
Its validity is more
It is universally adopted
It accounts for all parameters affecting soil erosion
It is developed by USDA
163. What is the erodibility factor if, the adjusted soil loss and factor become 80 tonnesjha and 800 units respectively
1.0 1.10 0.10 10.0
164. For a storm of any given duration with large return period, what will its intensity be
zero smaller larger equal
165. What is the horizontal distance between the graded terraces, if the land slope is
40m 30m 10m 50m
166. What is the value of mean areal rZllnfall using Theissen polygon method?
Station A B C
Rainfall 10 15 20
Polygon area (km2 50 100 50
13 cm 14cm 15cm 16em
167. What can effectively protect a stream bank when a stream takes sharp bend and bed scour is not deep and vertical
Brush wood rollers Brush wood edging
Spur dikes Wooden Jack series
168. The maximum slope length of 35 m is restricted in case of contour farming for the land having how much percent slope 9 to 12 13 to 16 6 to 8 3 t05
169. As per the WMO recommendations, in flat regions of temperate, mediterranean and tropical zones, in ideal conditions one raingauge should cover how much of an area 900 to 3000 ha 600 to 900 km2 100 to 250 miles 1500 to 10,000 m2
170. When the particle Reynold number is more than 400, what will be the value of shield's Entrainment function
0.056 0.065 0.56 0.65
171. In case of loamy soils for graded bunding, what should be the gradient of channel?
0.1 to 0.2% 0.5% 0.3 to 0.4% 0.5 to 0.7%
172. Which is the more effective retard of installation to control the stream bank erosion, where the stream bank currents are not swift?
Masonry jack Metal jack RCC jack Wooden jack
173. How is the runoff, classified on the basis of time lag between precipitation and runoff
direct runoff and indirect runoff
interflow and channel flow
surface flow and base flow
quick return flow and prompt flow
174. What is the interface between two distinct air masses of the weather system called?
Front Glaze Snow Cyclone
175. If through a basin area of 0.5 sq.km direct runoff of 15 ha -an is generated. What will be rainfall depth, if total rainfall losses are 30%
4.29 mm 4.29 cm 6.0 mm 6.0 cm
176. How much losses take place in water conveyance through unlined channels from source to field, of the total water lifted from the pond
15% 20 to 50% 50 to 60% 10 to 20%
177. Which principle is used in DU Boys formula for estimation of bed load?
Theory of tractive force Uniform size of sediments
Effect of grain diameter Experimental data
178. Complete the following sentence meaningfully. Trenches for hill slopes are designed on the basis of
land slope length of slope and erosive runoff velocity
slope length only runoff volume to be stored
179. What is the value of form factor if the drainage area is 50 square kilometres with the length of drainage basin. 5000 m
0.01 0.02 0.20 2.0
180. Which type of drains are provided at the upper part of the cultivated area to intercept the uncontrolled flow of water from the upper catchment and divert it laterally safe into a natural or protected waterways
Diversion Mole Vertical Metal
181. Among the following which condition is suitable for dug out type of ponds?
Land slope less than 4 percent
Land slope greater than 4 percent
Land slope between 5 to 8 percent
None of the above
182. What is the property of rainfall that causes erosion?
Emulsion Erosion Erosivity Erodibility
A 29 F02
183. What is the kinetic energy of rainfall for rainfall intensity 10 cmlh 203.10 units 210.30 units 201.30 units 299.30 units
184. What are the special constructional features of a detention reservoir for flood control in downstream area
Provided with adjustable gates and valves.
Provided with ungated outlet regulating outflow automatically.
Provided with gates to regulate flood volume.
Provided with storage to permanently detend flood volume.
185. Which sentence is correctly related to Universal Soil Loss Equation?
It computes the sediment deposition
It is not an empirical equation
It computes the gully erosion
It computes the average annual soil loss
186.
Which one of the following is selected on the basis of cost benefit ratio?
187.
How many rows of wooden pole spurs are constructed along the eroded portion of stream bank to control stream bank erosion
Design flood Peak flood
Annual flood Ordinary flood
Two Three Four Five
188. What is the general relationship that exists between rainfall intensity duration and return period
ex t.T
iex tiT iexT/t i ex 1/t.T
189. The condition of the site for farm pond, where the largest storage volume can be obtained with least amount of earth work will be fulfilled where,
Valley is narrow Side slopes are relatively steep
Valley is wide The area is plain
and and and and
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190. Erosion causing annual soil loss from 0.05 to 0.5 mm depth is categorized as which type of erosion?
Harmful Weak Medium Serious
191. State the process in which part of rainfall first leaches into the soil and moves laterally without joining the water table, streams, rivers or oceans?
Surface runoff Subsurface runoff
Total runoff Base flow
192. Complete the following statement.
The effectiveness of contour farming in erosion control is incorporated in factor of universal soil loss equation i.e.
C K LS
193. What has the lowest runoff coefficient among various categories of following land use?
Agricultural lands Forest lands
Barren lands Grass lands
194. What terminology is referred as the product of relief and drainage density? Reynold number Froud number Ruggedness number Geometric number
195. What is the recurrence interval of rainfall magnitude whose probability of event is 50 percent? 1 year 2 years 25 years 50 years
196. Which type of bunds are constructed between two contour bunds, so as to limit a horizontal spacing to the maximum required
Side Marginal Lateral Supplemental
197. What is the suitable grade for graded bunding in areas of medium and heavy rainfall
0.1 0.2 to 0.3% 0.3 to 0.5% 0.5 to 1.0%
198. The unit hydrogrLlph method to compute the direct runoff is limited to how much area of the \'atershcd I
ha 2500 acre 10,000 IT2
199. State in which condition V -shClpe gullies are developed?
alluvial plallls Easily erodible soil
Subsoils are ]ol)Se Subsoils are tough to resist the runoff
200. For effective functioning of water hClrvesting structure, how much storage or water spread area should there be I
10 ha 25 to 35% of catchment area
20'Yo of catchment Mea l/Sth to ljsth of catchment area
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SPACE FOR ROUGH WORK
1. Complete the following sentence meaningfully_
The pressure or head developed by a given centrifugal pump in a sprayer at a particular speed is a function of
Pump capacity Total head
Spray volume Discharge rate
2. At what temperahIre standard thermostat valves are designed to fully open 7
70°C 75°C 85°C 82°e
3. How much is the air compressed in a compression stroke of 4 stroke diesel engine)
1/6th of engine volume 1/5th of engine volume
1/10th of engine volume 1/121h of engine volume
4. Where are the centrifugal governors very common?
carburator engine stationary engine
gas engine both and above
5. What type of furrow openers are widely used in seed drills?
shovel shoe single disc double disc
6. What are the essential spare parts of the duster to be kept in stock?
Agitator Feeding brush
Breast plate Feed control lever
and and
and all of these above
7. What type of seed metering mechanism is common on British seed drills?
fluted feed internal double run
cup feed star wheel
8. What is the power actually required to pull or move the implement at a uniform speed, in relation to either a pull type or a mounted implement known as
Horse power Pto power
Drawbar power Hydraulic power
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9. What is the force that holds two particles of the soil of the same kind together? adhesion interna1 friction cohesion shearing stress Which of the above options is/are correct? and only only only only
10. What is dropping of the seeds in furrow lines in a continuous flow and covering them with soil called
drilling dibbling broad casting none of these
11. Fill in the blank correctly.
Fan -spray and hollow -cone nozzles employed on boom -type field sprayers generally have spray angles (i.e. included angle of the cone or fan) of
60 to 95° 100 to 150° 30 to 45° 10 to 30°
12. How many man hours are required to harvest one hectare of paddy crop?
170 -200 170 -190
190 -210 None of the above
13. Which type of brake is used in most of the power tiller?
Outer side expansion type Inner side expansion type
Both side expansion type None of the above
14. What does pneumatic tyre consist of Breakers Casing Beads Plies
only and and all of these
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A 5 F02
15. Complete the following sentence meaningfully: Tn 1.c. engine Tappet clearance is the clearance between:
Rocker arm and push rod
Tappet 'lll.d the cam
Valve head and the piston head
Rocker and valve stem
Which of the above is/are correct
and only only only
16. Fill in the blank with the correct option.
In rotary dusters, the handle should be cranked at revolutions per minute for efficient performance.
15-20 30-35 45-50 10-15
17. What is the working capacity of wheel hoe per day per man?
0.04 ha 0.U5 ha 0.06 ha 0.65 ha
18. What hitching system connects mounted implements to a tractor?
DraVl7bar PTO shaft
2 lower links 3 point linkage
19. Which of the following affects the tractive efficiency?
slope of land hitch height
shape and size of lugs all the above
20. The few adjustments for obtaining higher penetration of the disk harrow in the field are:
By decreasing the disk angle
By adding additional weight on the harrow
By increasing the disk angle
By using the sharp edged disks of small diameter and lesser concavity
Which of the above statements is/are correct
and only and only
only and only
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21. In what type of fuel injection pump, one pump serves as a nozzle for several cylinders?
Jerk pump Distributor pump
In line jerk pump Unit injector
22. Fill in the blank aptly:
The rate of circulation of the water in a water pump in forced circulation water cooling system should not be less than
5ljBHPjmin. 0.5 ljBHPjmin.
15ljBHPjmin. 0.1 ljBHPjmin.
23. What converts the reciprocating motion of piston into rotary motion of flywheel
Piston rings Connecting rod Crank shaft Cam shaft
24. What type of cultivator is suitable to operate in stony, stumpy, hard soil having roots as obstacles in the adverse field condition?
Spring loaded tines Rigid tines
Duck foot None of these
25. What serves as a pulse transformer that transforms or steps up the low voltage to high voltage necessary to jump across gaps at spark plugs?
Ignition coil Condenser Distributor Generator
26. Which of the following tests is not an essential test of tractors?
Centre of gravity Turning circle
Noise measurement Drawbar test
27. In tractors how is the weight transfer expressed as pull x hitch height pull x wheel base
wheel base hitch height pull pull -hitch height
wheel base wheel base
28. Which brake system is based on the principle of Pascal's law?
Disc brake Internal expanding shoe
External contracting shoe brake Hydraulic brake
29. What is the specific draft requirement of tandom disc harrow?
3.6 to 5.8 KN/cm2 6 to 9 KN/cm2
9 to 12 KN/cm2 12 to 15 KN/cm2
30. To what volume is a tank filled with liqUid in compression sprayers
3/4th volume half capacity 2/3rd volume L1f'lce]
31. Spraying pattern of nozzles used in high pressure high volume spraYtT pattern.
cone shape round shape square shape
32. Engine fails to develop full power because of
Air cleaner clogged Poor compression
Overheated engine Cylinders misfiring
only and
and All of these
33. Fill in the blank correctly.
A clutch pedal moves freely for short distance before it begins to pull clutch p!i1tes apart this distance is called "Free travel", which may vary between rnm
10 -15 12-50 52 -60 7U-bU
34. What is the grain damage by thresher due to
less clearance between cylinder and concave
very dried crop
high speed rate
none of the above
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35. What does the duster essentially consist of to apply chemicals in dust form on the plants?
Hopper, pressure gauge, pump, hol1mv cone nozzle and strainer
Hopper, agitator, feed control, blower and pump
Hopper, agitator, feed control, blower and delivery nozzle
Hopper, pump, agitator, blower and flat fan nozzle
Which of the above is/are correct?
and lb) only only
only none of the above
36. The clearance betvveen what is the clutch free play related with?
The release bearing and clutch plates
The release bearing and the stmt
The release bearing and the spring
The release bearing and the fingers
37. What are three main forces or force systems that must be in equilibrium to which a tillage implement moving at a constant velocity is subjected?
Gravity forces, soil forces and forces acting between implement and prime mover
Soil forces only
Gravity forces, soil forces and forces acting between implement and soil
Soil forces and forces acting between implement and soil
Which of the above statements is/are correct?
only only
and only and only
38. Which is a direct solid injection system of fuel injection?
common rail system air injection system
fuel pressure system no rail system
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39. What are the three types depending upon the types of notches on the seed metering plJtes in a planter?
cell drop, flat drop and hill drop
seed drop, cell drop and drop
seed drop, flat drop and cell drop
flat drop, edge drop and hill drop
Which of the above statements islJre correct?
and only only
only only
40. What is achieved by calibration of the seed drill
correct depth of seed in the soil
correct distance between the rows drilled
correct seed rate per hectare of crop
correct speed of sowing the seed
Which of the above statements islare correct
and only only
only only
41. On the basis of what characteristics a specific gravity seed separator is used for grading the seed?
same size but different specific gravity
same size and same specific gravity
different size and different specific gravity
different size but same specific gravity
42. Where does spoilage of grains in summer conditions take place 7
Top of the bin Bottom of the bin
Side of the bin All of the above
43. What is the destruction of all micro -organisms in food materie11 by thermal processing known as?
Pasteurization Sterilization Blanching ScaldJ1lg
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44. What is the characteristic of milled rice obtained from parboiled paddy compared to raw rice?
is "/hiter and contains more vitamin 81
require less cooking time and contains more vitamin
gives higher head yield and contains more vitamin
has Inore oil in bran and contains less vitamin BI
45. What sublimes the watervapour from frozen food?
Contact drying Vacuum drying
Freeze drying All of the above
46. For high capacities and fairly cheap means of vertical conveyance of grains, which type of material handling device is commonly used?
Belt conveyor Bucket elevator
Screw conveyor Pneumatic conveyor
47. What is the difference between dry bulb temperature and wet bulb temperature called?
Dry bulb depression Wet bulb depression
Dew point depression Degree of saturation
48. What is the shape of perforated deck of specific gravity separator?
Triangular Rectangular Circular Hexagonal
49. If the fruits are having egg shape and are broad at the stem end, they have shape.
oblate oblong ovate obovate
50. What is the ratio of diameter of the largest inscribed circle to diameter of the smallest circumscribed circle called
Roundness Sphericity
Roundness ratio None of the above
51. Which storage structure is used as transit storage and serves the purpose of storage of food grains for a short period
Bunker storage Bukhari storage
Pusa bin storage CAP storage
52. What can achieve concentration of highly heat sensitive material?
Vertical tube evaporator Horizontal tube evaporator
Falling film evaporator Plate evaporator
53. What indicates the relative proportions of the coarse, medium and fine particles 7
Fineness modulus Uniformity index
Average particle size Effectiveness
54. What is the maximum degree of inclination from horizontal upto which a screw conveyor can be used?
55. What is the amount of steam consumed to evaporate 1 kg of water from food in a drum dryer?
0.3 kg 1.3 kg 3.0 kg None of these
56. At what speed do hammers rotate in a Hammer Mill
1200 to 7000 rpm 1500 to 4000 rpm
1000 to 1500 rpm 700 to 1000 rpm
57. In milk processing, homogenizer is used to reduce the fat globules size to
Less than 2 millimetres Less than 20 millimetres
Less than 2 microns None of the above
58. Match the following:
Deep bin design Moisture accumulation at bottom
Shallow bin design Moisture accumulation at top
Winter moisture migration Rankines theory
Summer moisture migration Janssen's Equation
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59. Complete the sentence correctly. The spiral separator separates the grains as per their .
Size Shape Roundness Sphericity
60. Fill in the blank correctly.
The Equilibrium moisture content is determined at constant relative humidity and conditions of air.
pressure volume
temperature None of the above
61. In a body when stress is directly proportional to strain, what is the relationship known as?
Newton's law Hook's law
Kelvin model Maxwell model
62. Which equation can estimate the average particle size, DP in mm represented in terms of fineness modulus [F.M.]
DP 0.135 [1.366]F.M. DP 0.135 [3.166]F·M
DP=0.315 [1.366]F.M. DP=O.315 [3.166]FM.
63. At what relative humidity, the dry bulb temperature, wet bulb temperature and dew point temperature of moist air are the same
1 percent 50 percent
100 percent Difficult to predict
64. What is the number of molecular weight of solute expressed in kg in 1 m3 of solution?
Molar concentration Mole fraction
Both and None of the above
65. What will be the moisture content on dry basis if the moisture content of paddy on wet basis is 20%
20% more than 20%
less than 20% none of the above
A 13 F02
66. Wh<:lt is the removal of foreign and undesirable matter from the desired products ccdled as
washing cleaning sorting
M-Me
67. is known as
Mo -Me
where, M=Moisture content,
Me EMC,
Mo Initial Moisture Content,
Critical moisture content Moisture ratio
Equilibrium moisture content Drying rate
68. Complete the sentence.
A stream of product to be dried is very finely atomized in a stream of hot air is a general principle of .
Vacuum dryer Spray dryer
Tray dryer All of the above
69. Fill in the blank with the appropriate option.
In homogenization process of milk increases with increasing honwgenizing pressure.
Viscosity Total soluble solids
Acidity pH
70. What is the most commonly used refrigeration system nowadays?
Vapour compression refrigeration
Vapour absorption refrigeration
Electrolux refrigeration
Steam jet refrigeration
71. What reduces the size of food grain in an attrition mill
Impact and shear Crushing and shear
Impact and crushing Impact only
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72. Fill in the blank with the correct option. During a refrigeration cycle, heat is rejected by a refrigerant in a
compressor condenser
evaporator expansion device/valve
73. What is the cheapest conveying equipment to convey bulk grains over large distance?
Belt conveyor Screw conveyor
Bucket elevator Pneumatic conveyor
74. How are the equilibrium moisture curves or grain isotherms generally?
S -shaped L -shaped Straight line V -shaped
75. What is the meaning of equilibrium moisture content?
The moisture content of the centre of the product when it is in equilibrium with the surface.
The moisture content of the product when it is in equilibrium with the surrounding atmosphere.
The moisture content of the product when it is less than surrounding atmosphere.
The moisture content of the product when it is higher than surrounding atmosphere.
76. What requires high power and may cause damage to conveyed material?
Chain conveyor Pneumatic conveyor
Belt conveyor Screw conveyor
77. How does the screw conveyor generally move the grains?
Vertically Horizontally
Inclined None of the above
78. Fill in the blank with the correct option. Centrifugal discharge is used extensively for handling small grains in
belt conveyor chain conveyor
screw conveyor bucket elevator
..
79. 1-RH=e-CI whZlt equcltion is this?
c
Where, RH Relative Hl1midltv, decil1lZlI;
T Absohlte tel1lperclturt',K;
lvIe=Equilibrium moisture content, C and n=constant
BET equC1tion Gibb's equation
BC1ker and i
kel1lC1 equcltion Henderson's equation
80. What does the constant rate drying period depend on
Area exposed.
Difference in hL11nidity between air and wet surface.
Coefficient of mass transfer.
Velocity of drying Zlir.
only (al and only and
only and
81. The Khadi Village Industries Commission (KVlC) biogas model is of which type)
biogZls plant Floating gas holder
Fixed dome digester Mobile biogas plant
82. Vhich instrument is used to measure the direct and diffused radiation in terms of energy per llllit time per unit area on horizontal surface?
Thermometer Pyranometer
Anemometer Sun shine recorder
83. From what can biogas be produced?
Cow dung Poultry droppings
Plant garbage Flesh of carcasses
and only
and all of these
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84. Fill in the blank correctly. Step-up transformer receives energy at one voltage and delivers it at a voltage.
Len-ver Higher Same Zero
85. What is a universal ITlOtor
is available universally
can be marketed internationally
can be operated either on dc or ac supply
runs at dangerously high speed on no load
86. What are the steps as per generally recognized strategy for site selection of ,-vind mill installations?
Survev of historical wind data is done.
Contour maps of terrain and wind are consulted.
Potential sites are instrumented for approximately one year.
Optimal site is chosen.
and and
and and
87. How many fold increase in the available wind power will there be, if the diameter of a rotor of horizontal axis wind mill is doubled?
2 4 6 8
88. Complete the sentence. The surface azimuth angle varies from
0° to 180° to 270° to 180° -180° to 360°
89. What is the calorific value of biogas in kcal per cubic meter?
3000 3700 4700 5500
90. What is the range of voltage applied to the electrical fence?
6000 to 15000 volts pulsating 6000 to 15000 volts continuous
1000 to 6000 volts pulsating 1000 to 6000 volts continuous
91. What for is a fuse provided fur electric circuit?
safe -guarding the cirlLllt ,1gainc;t heavy current
decreasing current flovving in circuit
increasing current fleming in a circuit
decreasing power consumption in a circuit
92. Fill in the blank. In fixed dome type biogas plant, gas availability is at pressure.
Atmospheric Constant Variable these
93. Which of the following is not a part of flat plate solar collectors?
Transparent cover Absorber plate
Insulation Heliostat
94. India is having about 10 rnillion motors with average rating of 3.7 kW. If t1w l'lfllJcllCV is increased from 80% to how much power will be saved per year, considering :1l1llual use of 1000 hrs
2.96 billion kWh 4.62 billion kWh
5.'14 billioll kW]l 0.9 billion kWh
95. Wind mill operated piston pump is suitable for which form of irrigation?
well bore hule dam nver
and and
and all the above
96. Fill in the blanks appl'Opriatcly.
Wind speed with height; at the height of 10 m was found to be
than that close to the ground
increase; 5 higher decrease; 5 lower
increase; 20 -25"" higher decrease; 20 lower
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97. Fill in the blank correctly.
Methane bacteria work best at a temperature range of for optimum biogas production.
10-200e 35 -38°e 5-15°e 40-50Ge
98. Which of the following are the direct or indirect applications of solar energy?
Solar water heating Space cooling
Wind energy Solar cooking
only and
and all of above
99. What is the major obstacle to increase the use of solar irrigation systems?
It cannot be operated in rainy season
Relatively high capital cost
Relatively high operational cost
Pumping may be intermittent
100. What is the relative requirement of the Savonius rotor machine due to which it has become popular, since operation?
high velocity wind low velocity wind
low maintenance moderate velocity wind
101. What type of windows are provided on the sloping surface of a pitched roof?
Clerestorey Bay Lantern Sky lights
102. Fill in the blank with a correct option. A king post truss is suitable for roofs of span varying from
2mto5m 5mto8m 8mto 11m 12mto15m
103. Which flooring material is used in the parquet flooring?
Magnesite Asphalt Timber Plastic
104. How much percentage of photosynthetically active radiation is transmitted on an average into the greenhouse by UV stabilized polythelene
57 67 77 87
A 19 F02
105. In green house cultivation, temperature at which plant can grow depends upon 7 Species Radiant energy Carbon dioxide concentration All of these
106. What is the solid ground on which the foundations rest called? Footing Plinth Foundation bed Super -structure
107. Fill in the blank with one of the options given below.
The doors should preferably be located near the corner of a room, at a distance of about
300 mm from the corner. 250 200 150
108. What tests the soundness of cement? Air permeability method Vicat's apparatus Le -chatelier method All of the above
109. In which case is the service life of green house covering material highest?
Acrylic sheet
Polycarbonate sheet
Fibre glass reinforced plastic panels
Polyethylene sheet
110.
Fill in the blank with the appropriate option.
111.
What is the minimum clearance required between the bottom of a vertically driven turbine type pump and the floor of the jack well
The crushing strength mm2. of a good structural stone should be greater than
100 75 50 25
1m 1.5 m 2 m 2.5 m
112. What is the recommended safe land slope in heavy soils for land levelling to have efficient irrigation
0.20 to 0.40% 0.25 to 0.60% 0.05 to 0.20% 0.50 to 0.70%
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113. If H is the head of water above the V -notch, then the rate of flow through V -notch varies as
H5/2
H .JH
114. What should be the hypothetical discharge of 10 HP pump working at the efficiency of 75% andattheheadof75m
lalit/sec 12.50 lit/sec 7.50 lit/sec 15 lit/sec
115.
The formula 0.61 X 10-3 a is used to find discharge through circular orifice under free flow condition. Here, h is expressed as
116.
What is the most appropriate mechanically operated equipment for the fine grading of small and medium size fields?
Vertical distance between bottom of channel and top of floor.
Difference between upstream and downstream water level.
Vertical distance between bottom of orifice and top of flow.
Vertical distance between centre of orifice and top of flow.
bull dozer two wheeled automatic leveller
carrier type scrapper wooden float
117. What must be the depth of the tile lines for the usual channels serving as outlets?
0.60 m or less always 0.90 m
1.2 m or more 3.0 m or more
118. What is the pressure drop usually allowed in a media filter?
1m 2m 3m 4m
119. The pressure head in a sprinkler system is converted into velocity head at
the sprinkler head the sprinkler jet
the nozzle the riser
120. How are the constantly flowing wells due to high hydrostatic pressure within confined aquifers classified as
Pearched wells Piezometric wells
Sinking wells Artesian wells
A 21 F02
121. Drainage chann.el discharges 0.1 cubic metres of water per second and drains 360 hectares, vvh3t is the dr3inage coefficient of this land 7
2.4 mm 4.9 n1n1 9.9 mm 5.9 mnl
122.
What will be the formation level of upper and lower grid from centroid in the following case 7
123.
What is the method of land levelling design; restricted to those fields where it is feasible to grade the field to a true plane?
centroid 100 m
slope 0.2%
Grid distance 30 m
100.30 m and 99.70 m 100.60 m and 99.94 m
101.20 m and 98.80 m 103.00 m and 97.00 m
plane method profile method
plan inspection method contour adjustment method
124. Which equation gives the leaching requirement for the salt affected soil
Dd ECd Di ECi
Di ECi Dd ECe
125. What is the line which gives the sum of pressure head and datum head of a flowing fluid in a pipe with respect to some reference line, known as
total energy line datum line
hydraulic gradient line reference line
.._..._.
126. What is the ratio between the actual velocity of a jet of liqUid at vena -contracta and the theoretical velocity of jet called 7
coefficient of friction coefficient of discharge
coefficient of contraction coefficient of velocity
127. How is the safe agricultural dred categorised as per the working group on problem identification in irrigated areas constituted by the Ministry of Water Resources Govt. of India (MOWR 1991)
Water table touching the bnd surface.
Water table between 2 to 3 m from land surface.
Water table belm! 3.0 m from land surface.
Water table within 2.0 m from land surface.
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128. What is generally the diameter of observation wells for pumping tests of wells? less than 2.5 m ranging between 2.5 to 5 em mare than 5 cm about 30 cm
129. What is the relationship between duty delta and base period
8.64 B
Li= if B in days and D in ha
8.64 D
Li= B if B in days and Din ha
Li x if B in days, D in ha and T pump working hrs per day DxB
Li= 8.64x 2hx3600 ifBindays,Din ha
27.78
130. Complete the following sentence meaningfully. Flow through channel is said to be steady, when velocity of flow is
constant at point over length constant at point over time
varying at point over length varying at point over time
131. What is the condition for the trapezoidal channel section to be most economical?
(m=hydraulic mean depth and d=depth of fluid) d mdm
22 44
132. Where the gravel filter and the base material are more or less uniformly graded for gravel envelope, without a lack or excess of certain particle sizes, a filter stability ratio is generally safe, when it is
less than 5 mare than 5 more than 7 none of these
133. Which of the following components of canal system is supposed to be maintained by farmer?
Distributary Water course Minor Branch canal
A 23 F02
134. What for are propeller pumps specifically adopted?
low h.eud and high disdlarge operations
high head unci low disc:1Z1Tt.;to oper.ltions
high 11ead ,mel high discharge operations
low head and low discharge operations
...
135. At what flexibility the caru] n'1tld icc
to be hyper proportionJ] 7
less them unity
equal to unity
none of these
greater than unity
136. What is the structure known as when the fIFL of the drain is sufficiently below the bolrw!I of the canal so that the drainage water flows freely under gravity?
syphon aqueduct canal syphon
aqueduct super passage
137. What does duty of any crop signify?
it is a discharge in curnec base period.
it is a period in days for which one cumec discharge is released.
it is an area in hectares irrigated by one cumec discharge released tor base period for that particular crop.
it is discharge in to released for 100 ha areJ for that D'1rllcul))" crop.
138. What is the suction limit of a centrifugal pump?
10 m 21 III 6m 35 m
139. What are the characteristics of shallow tube wells?
high capacity and depth th,nt 35 In
low capacity and depth less than 35 rn
high capacity and depth between 60 -300 Tn
low capacity and depth between 60 -300 m
140. Which one of the following equations is used to determine the velocity of flow where L=distance, c":,dudi"it m/dav; (h1 -h,»)··-=celcvation differenG' in
water table, m
K(h K.L
V 1 L m l en m/day
L(h1 K(h1
!11/dav m/sec
J
K L"
SPACE FOR ROUGH WORK
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141. What is the stream which becomes dry soon after the end of rainstorm referred as intermittent stream perennial stream ephemeral stream influent stream
142. Which of the following is the economic flood control structure in the earthen dike like form?
Retarding basins Close conduits
Retaining walls Levees
143. What is the remedial measure of controlling reservoir sedimentation that becomes economically impracticable?
removal of sediment deposit control of sediment inflow
design of reservoir watershed erosion control
144. Which one is the common suspended load sampler?
Pumping sampler Core sampler
Width sampler Open sampler
145.
How is the weighing factor defined as, in Thissen polygon method of determination of average precipitation over an area?
Polygon
146.
What is the capacity of each compartment of tipping bucket type raingauge
Total area Polygon area X Total area
Total area Point rainfall
Polygon area Average rainfall
0.20 mm rainfall depth 0.25 mm rainfall depth
0.30 mm rainfall depth 0.50 mm rainfall depth
147. The 3 1 and 4 1 side slopes towards upstream and downstream, respectively should be provided to earthen dam for which type of soils?
Well graded soil Average quality fill material
Relatively coarse fill material Coherent soil
A 25 F02
148. What is the value/range of moderate intensity based on the falling rate of raintall 2.5 mm/h 2.5 to 7.5 mm/h 7.5 to 15.0 mm/h 15.0 to 22.0 mm/h
149. When isolated bodies of resistant rock from prominent hills are found above the subdued surface, which phase occurs
Inequilibrium Equilibrium Hypsometric Monadnock
150. What is the value of bifurcation ratio if, the number of streams of order u are 15 and order are 4
0.27 0.72 0.75 3.75
151. In what form the relationship between rainfall and runoff for large catchments exists 7
linear logarithmic
exponential none of the above
152. Which shape of grassed waterway amongst the following is hydrologically more efficient and easy to construct
Triangular Trapezoidal Half -circle Parabolic
153. In which soils will the soil erosion be highest?
soil under cultivated crop soil surface covered by plant canopy
soil surface under grass cover soil surface under forest cover
154. What is the term for lines joining all prints in a basin by some key time elements in a storm?
Isobaths Isobars Isochrones Isohyetes
155. As per the FAG 1965 recommendation, what should be the width for wind -strip cropping for sandy loam soil?
6 m 85 m 30 m 105 m
156. Watersheds A and B have same area, but A has greater stream density than that of B. Which watershed will yield higher peak runoff
A and B equally None of the above
SPACE FOR ROUGH WORK
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157. When will the width of bench terrace be more, for a predetermined depth of cut?
when batter slope is 0.5 1 when batter slope is 1 1
when batter slope is 2 1 when batter is vertical
158. What should be the non -erodible velocity for sandy soils?
0.25mjs 0.50mjs 0.75mjs 1.0 mjs
159. In general, what should be the maximum limit for a continuous terrace length, provided that the terrace should carry the runoff in only one direction.
400tc500m 600to800m
0.8to1 km 200to400ft
160. What is the value of constant of channel maintenance if, the drainage density of basin is
0.005 mjm2
100m 200m 300m 400m
161. Fill in the blank with the appropriate option. Side slope in contour and graded bund is designed on the basis of
bund height bund base width
slope of seepage line angle of repose of soil
162. Why is soil loss estimation equation referred as 'universal soil loss equation'
Its validity is more
It is universally adopted
It accounts for all parameters affecting soil erosion
It is developed by USDA
163. What is the erodibility factor if, the adjusted soil loss and factor become 80 tonnesjha and 800 units respectively
1.0 1.10 0.10 10.0
164. For a storm of any given duration with large return period, what will its intensity be
zero smaller larger equal
165. What is the horizontal distance between the graded terraces, if the land slope is
40m 30m 10m 50m
166. What is the value of mean areal rZllnfall using Theissen polygon method?
Station A B C
Rainfall 10 15 20
Polygon area (km2 50 100 50
13 cm 14cm 15cm 16em
167. What can effectively protect a stream bank when a stream takes sharp bend and bed scour is not deep and vertical
Brush wood rollers Brush wood edging
Spur dikes Wooden Jack series
168. The maximum slope length of 35 m is restricted in case of contour farming for the land having how much percent slope 9 to 12 13 to 16 6 to 8 3 t05
169. As per the WMO recommendations, in flat regions of temperate, mediterranean and tropical zones, in ideal conditions one raingauge should cover how much of an area 900 to 3000 ha 600 to 900 km2 100 to 250 miles 1500 to 10,000 m2
170. When the particle Reynold number is more than 400, what will be the value of shield's Entrainment function
0.056 0.065 0.56 0.65
171. In case of loamy soils for graded bunding, what should be the gradient of channel?
0.1 to 0.2% 0.5% 0.3 to 0.4% 0.5 to 0.7%
172. Which is the more effective retard of installation to control the stream bank erosion, where the stream bank currents are not swift?
Masonry jack Metal jack RCC jack Wooden jack
173. How is the runoff, classified on the basis of time lag between precipitation and runoff
direct runoff and indirect runoff
interflow and channel flow
surface flow and base flow
quick return flow and prompt flow
174. What is the interface between two distinct air masses of the weather system called?
Front Glaze Snow Cyclone
175. If through a basin area of 0.5 sq.km direct runoff of 15 ha -an is generated. What will be rainfall depth, if total rainfall losses are 30%
4.29 mm 4.29 cm 6.0 mm 6.0 cm
176. How much losses take place in water conveyance through unlined channels from source to field, of the total water lifted from the pond
15% 20 to 50% 50 to 60% 10 to 20%
177. Which principle is used in DU Boys formula for estimation of bed load?
Theory of tractive force Uniform size of sediments
Effect of grain diameter Experimental data
178. Complete the following sentence meaningfully. Trenches for hill slopes are designed on the basis of
land slope length of slope and erosive runoff velocity
slope length only runoff volume to be stored
179. What is the value of form factor if the drainage area is 50 square kilometres with the length of drainage basin. 5000 m
0.01 0.02 0.20 2.0
180. Which type of drains are provided at the upper part of the cultivated area to intercept the uncontrolled flow of water from the upper catchment and divert it laterally safe into a natural or protected waterways
Diversion Mole Vertical Metal
181. Among the following which condition is suitable for dug out type of ponds?
Land slope less than 4 percent
Land slope greater than 4 percent
Land slope between 5 to 8 percent
None of the above
182. What is the property of rainfall that causes erosion?
Emulsion Erosion Erosivity Erodibility
A 29 F02
183. What is the kinetic energy of rainfall for rainfall intensity 10 cmlh 203.10 units 210.30 units 201.30 units 299.30 units
184. What are the special constructional features of a detention reservoir for flood control in downstream area
Provided with adjustable gates and valves.
Provided with ungated outlet regulating outflow automatically.
Provided with gates to regulate flood volume.
Provided with storage to permanently detend flood volume.
185. Which sentence is correctly related to Universal Soil Loss Equation?
It computes the sediment deposition
It is not an empirical equation
It computes the gully erosion
It computes the average annual soil loss
186.
Which one of the following is selected on the basis of cost benefit ratio?
187.
How many rows of wooden pole spurs are constructed along the eroded portion of stream bank to control stream bank erosion
Design flood Peak flood
Annual flood Ordinary flood
Two Three Four Five
188. What is the general relationship that exists between rainfall intensity duration and return period
ex t.T
iex tiT iexT/t i ex 1/t.T
189. The condition of the site for farm pond, where the largest storage volume can be obtained with least amount of earth work will be fulfilled where,
Valley is narrow Side slopes are relatively steep
Valley is wide The area is plain
and and and and
SPACE FOR ROUGH WORK
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190. Erosion causing annual soil loss from 0.05 to 0.5 mm depth is categorized as which type of erosion?
Harmful Weak Medium Serious
191. State the process in which part of rainfall first leaches into the soil and moves laterally without joining the water table, streams, rivers or oceans?
Surface runoff Subsurface runoff
Total runoff Base flow
192. Complete the following statement.
The effectiveness of contour farming in erosion control is incorporated in factor of universal soil loss equation i.e.
C K LS
193. What has the lowest runoff coefficient among various categories of following land use?
Agricultural lands Forest lands
Barren lands Grass lands
194. What terminology is referred as the product of relief and drainage density? Reynold number Froud number Ruggedness number Geometric number
195. What is the recurrence interval of rainfall magnitude whose probability of event is 50 percent? 1 year 2 years 25 years 50 years
196. Which type of bunds are constructed between two contour bunds, so as to limit a horizontal spacing to the maximum required
Side Marginal Lateral Supplemental
197. What is the suitable grade for graded bunding in areas of medium and heavy rainfall
0.1 0.2 to 0.3% 0.3 to 0.5% 0.5 to 1.0%
198. The unit hydrogrLlph method to compute the direct runoff is limited to how much area of the \'atershcd I
ha 2500 acre 10,000 IT2
199. State in which condition V -shClpe gullies are developed?
alluvial plallls Easily erodible soil
Subsoils are ]ol)Se Subsoils are tough to resist the runoff
200. For effective functioning of water hClrvesting structure, how much storage or water spread area should there be I
10 ha 25 to 35% of catchment area
20'Yo of catchment Mea l/Sth to ljsth of catchment area
SPACE FOR ROUGH WORK
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F02 32 A
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Q.No.201. The Catch varies inversely with the size of the:
nozzle droplet
obstruction sprayer
II • II" 0 IT
wr m-rq I:fTR! '3f1 obstruction" Q 31l'f,. 7:fT '3f1 31RIT @010SP""I1l • I I " 'TITTfrnTr
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3fHQf7.lOticdl0 C;:1@C1IC11. f}lICfiFhll
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SPACE FOR ROUGH WORK