Rajasthan Public Service Commission 2016
Paper 69AssttEngineerCivil
Ques
Fly ash is residue generated from
Chemical Industries
Hydel Power Plant
Nuclear Power Plants
Thermal Power Plants
Ques
Marble is a
Igneous Rock
Sedimentry Rock
Metamorphic Rock
Granite Rock
Ques
The two main compounds of ordinary Portland cement are
Tricalcium silicate and dicalcium silicate
Dicalcium Silicate and alkali oxide
Tricalcium aluminates and alkali oxide
Tricalcium silicate and alkali oxide
Ques

Which component has highest percentage in good brick earth
alumina
lime
silica
oxide of iron
Ques
The strength of concrete is directly proportional
Water Cement Ratio
Cement water ratio
Sand Cement Ratio
Water aggregate Ratio
Ques
The commonly used lime in white washing is
Hydraulic Lime
Fat Lime
Plain Lime
None of These
Ques
A metallic tape is of
Steel
Invar
Linen
Cloth and Wires

Ques
If the quadrantal bearing of a line is N 25° then the whole circle bearing of the line is
S 25° E
205°
335°
295°
Ques
For a wellconditioned
triangle an angle should not be less than
20°
30°
45°
60°
Ques :10
Cross staff is an instrument used for
Measuring approximate horizontal angles
Setting out right angles
Measuring bearings of the line
None of These
Ques :11
It is the axis about with the instrument can be rotated in a horizontal plane.
Trunion axis
Horizontal axis
Axis of the Telescope

Vertical axis
Ques :12
In compass survey the dip of the needle at equator will be
Zero
90°
45°
None of These
Ques :13
The maximum bending moment caused by a concentrated load at the mid span of a simply supported beam is
M
M
M
M
Ques :14
The variation of the bending moment in the segment of a beam where the load is uniformly distributed is
Zero
Linear
Parabolic
Cubic
Ques :15
The shear stress on a beam section is maximum

At the centroid of the section
On the extreme free surface fibres
At the free edges
At the neutral axis but not at the centroid of the section
Ques :16
The maximum tensile stress in a cantilever beam with concentrated load acting downwards on the span is caused at
Top fibre at mid span
Bottom fibre at mid span
Bottom fibre at support
Top fibre at support
Ques :17




Ques :18
The point of contraflexure is a point where
shear force changes sign
bending moment changes sign

shear force is maximum
bending moment is maximum
Ques :19
The radius of Mohr's circle gives the value of
minimum normal stress
minimum shear stress
maximum normal stress
maximum shear stress
Ques :20
Maximum deflection in a simply supported beam with a central point load is given by



Ques :21
The minimum longitudinal reinforcement in a column is provided as a percentage of grosssectional
area of the column . This percentage is
0.6
0.8
1.0
None of These

Ques :22
The diameter of lateral ties in a column is taken as
1/4 diameter of the largest longitudinal bar
6 mm
Greater of 1/4 diameter of the largest longitudinal bar or 6mm
None of These
Ques :23
When width effective depth overall depth the maximum area of reinforcement in RCC beam shall not exceed
0.04bd
0.04bD
0.05bd
0.05bD
Ques :24
For a short column the ratio of effective length of the column to its least lateral dimension should not exceed
11
12
15
18
Ques :25
Concrete in sea water shall be at least ............... grade in case of reinforced concete.
M20
M25
M30
M40

Ques :26
A beam shall be deemed to be a deep beam when the ratio of effective span to overall depth is less than ...... for a continuous beam.
2.5
3
3.5
4
Ques :27
In riveted construction the minimum width of lacing bars shall be ...... times the nominal dia of the end rivet.
2
2.5
3
3.5
Ques :28
Target strength for the mix proportioning is given by




Ques :29

The pH value of water for construction should be less than
7
8
6
9
Ques :30
Number of phases in soil mass is
1
2
3
4
Ques :31




Ques :32
According to IS classification the range of silt size particle
4.75 mm to 2.00 mm
2.00 mm to 0.425 mm

0.425 mm to 0.075 mm
0.075 mm to 0.002 mm
Ques :33
Sieving is not practicable for grain size smaller than about
0.075 mm
0.095 mm
0.15 mm
0.2 mm
Ques :34
Which of the following is practically impermeable
Gravel
Sand mixture
Coarse sand
Clay
Ques :35
A soil has a liquid limit of 40 plasticity index of 20 The plastic limit of the soil will be
20
30
40
60
Ques :36

An ideal fluid is
One which obeys Newton's law of viscosity
Frictionless and incompressible
Very Viscous
Frictionless and Compressible
Ques :37
Surface tension of water
Increase with decrease in temperature
Decrease with decrease in temperature
Is independent of temperature
None of these
Ques :38
For a fully submerged body of homogeneous composition, the centre of buoyancy always
Coincides with the centre of gravity
Coincides with the centroid of the volume of fluid displaced
Remains above the centre of gravity
Remains below the centre of gravity
Ques :39
Which of the following is used to measure the discharge
Current Meter
Venturimeter
Pitot tube
Hotwire anemometer

Ques :40
The major loss of energy in long pipes is due to
Sudden enlargement
Sudden contraction
Gradual contraction or enlargement
Friction
Ques :41
Which notch is preferable for low flow rates
rectangular
triangular
Both Rectangular and Triangular
None of these
Ques :42
The relation between duty D in hectares/cumec, depth of water . in metres and base period B in days is given by




Ques :43
Hydrograph is the graphical representation of

Discharge and time
Rainfall and time
Ground water flow and time
None of these
Ques :44
The runoff increase with
Increase in intensity of rain
Increase in infiltration capacity
Increase in permeablity of soil
All of these
Ques :45
An artesian aquifer is the one where
Water surface under the ground is at atmospheric pressure
Water is under pressure between two impervious strata
Water table serves as upper surface of zone of saturation
None of these
Ques :46
In comparison to gravity dams, earthen dams
Are costlier
Are less susceptible to failure
Require sound rock foundations
require less skilled labour

Ques :47
The maximum application rate by sprinklers is limited by
the infiltration capacity of the soil
the prevailing wind velocity
the quantity of water available
sprinkler irrigation
Ques :48
Which of the following methods of irrigation do not use open ditches for water delivery
subirrigation
trickle irrigation
furrow irrigation
check irrigation
Ques :49
The alum when added as a coagulant in water
Does not require alkalinity in water for flocculation
Does not affect pH value of water
Increase pH value of water
Decrease pH value of water
Ques :50
MPN index is a measure of which one of the following
B.O.D.
Hardness
D.O.
Coliform Bacteria

Ques :51
In a sedimentation tank, sedimentation depends on
Depth of tank
Surface area of tank
Both depth and surface area of tank
None of these
Ques :52
The compounds of chlorine commonly used for disinfection are
Chloromines
Bleaching powder
Both chloromines and bleaching powder
None of these
Ques :53
The type of valve which allows water to flow in one direction but prevents its flow in the reverse direction is
Reflux valve
Sluice valve
Air relief valve
Pressure relief valve
Ques :54
Which of the following sewers is preferred for combined system of sewage
Circular sewer

Egg shaped sewer
Rectangular sewer
None of these
Ques :55
Distance between the centres of two adjacent fastners in a line, lying in the direction of stress in tension members should be
16 t or 200 mm whichever is less
32 t or 300 mm whichever is less
16 t or 200 mm whichever is more
32 t or 300 mm whichever is more
Ques :56
The water of zero hardness can be achieved by
lime process
lime soda process
zeolite process
None of these
Ques :57
The most common coagulant is
magnesium sulphate
alum
chlorine
bleaching powder
Ques :58

The stopping sight distance depends upon
Total reaction time of driver
Speed of vehicle
Efficiency of brakes
All of these
Ques :59
The shoulder provided along the road edge should be
Rougher than the traffic lanes
Smoother than the traffic lanes
Of same colour as that of the pavement
Of very low load bearing capacity
Ques :60
Width of carriage way for a single lane is recommended to be
7.5 m
7.0 m
3.75 m
5.5 m
Ques :61
The most suitable equipment for compacting clayey soils is a
smooth wheeled roller
pneumatic tyred roller
sheep foot roller
vibrator

Ques :62
The shape of the camber, best suited for cement concrete pavements, is
straight line
parabolic
elliptical
combination of straight and parabolic
Ques :63
Deep beams are designed for
shear force only
bending moment only
Both shear force and bending moment
bearing
Ques :64
Which one is the correct sequence of various operations of preparation of BrickEarth
I. Blending II. Digging III. Weathering IV. Unsoiling V.
Tempering
IV II III I
IV II III V
II IV V III, I
II III IV, V I
Ques :65
Ultrasonic Pulse Velocity Test to measure the strength of concrete is I.
used to obtain estimate of concrete strength of finished concrete elements
II. used to measure strength of wet concrete III. a nondestructive
test Which of the above statements are correct

I and III
II and III
I and II
I II and III
Ques :66
Normally the Mastic Asphalt is used for
fire proofing
sound insulation
water proofing
None of these
Ques :67
Which of the following statement is correct
Activity is the beginning or end of the job
Event is time consuming part of the work
Acivity is denoted by arrows and events by circles or rectangles
Acivity is denoted by circles or rectangles and events by arrows
Ques :68
Which of the following is an event
mix concrete
assemble parts
pipe line laid
excavate foundation

Ques :69
The alignment of highways are generally taken along
along the contour line
across the contour line
the valley line
the ridge line
Ques :70
The subtense bar is used to measure
Horiziontal Angle
Vertical Angle
Horizontal Distance
Vertical Distance
Ques :71
While using Total Station, the vertical angle is usually measured as a zenith angle
0° vertically up, 90° horizontal and 180° vertically down
0° vertically down, 90° horizontal and 180° vertically up
0° horizontal, 90° vertically down and 180° vertically up
None of these
Ques :72
In GPS recievers used are
mechanical clocks
atomic clocks
electronic clocks
quartz clocks

Ques :73
What is the correct order of the following for an engineering work I.
eTender
II. Earnest Money III. Work Order IV. Security Deposit
I III II IV
I II IV III
I II III IV
II III I IV
Ques :74
Consolidation time of a soil sample
Increases with a decrease in permeablity
Increases with an increase in permeablity
Increases with a decrease in unit weight of water
Increases with a decrease in compressibility
Ques :75
If be the angle of shearing resistance, the angle of the failure plane with the major principal plane is equal to




Ques :76

The collapsible soil is associated with
loess
laterite soils
black cotton soil
dune sands
Ques :77
If the coefficient of passive earth pressure is then what will be the value of active earth pressure
1/4
1/16
16
4
Ques :78
If water table is encountered in the standard pit while conducting plate load test
The pit is considered unsafe
The load test should be abandoned
The bearing capacity of soil cannot be determined in this condition
Test should be conducted with complete dewatering continuously throughout the test duration
Ques :79
Multi Utube
manometers with different fluids are used to measure
very low pressure
low pressure
high pressure
medium pressure

Ques :80
Conversion of dynamic velocity head into static pressure head in a centrifugal pump is result of
difference in pressure between suction and delivery ends
stuffing box
increasing area of flow between adjacent vanes from inlet to outlet
radial thrust in pumps
Ques :81
From the surface of reservoir, evaporation may be minimised by sprinkling
Hydrochloric acid
Acetyl alcohal
Methane
Spirit
Ques :82
The total number of independent equations that form the Lacey's regime theory is
6
4
3
2
Ques :83
A check dam is
River training structure
Water Storage structure
Flood control structure

Soil conservation structure
Ques :84
Which one of the following is the purpose of providing the downstream sheet pile in a barrage
To control failure due to scour
To stop failure due to sliding
To stop failure due to uplift pressure
To control failure due to piping by high value of exit gradient
Ques :85
Which one the following Acts/Rules has a provision for No right to appeal'
The Hazardous Waste (Management and Handling) Rules 1989
Environment (Protection) Act, 1986
Environment (Protection) Rules, 1992
Manufacture, Storage and Import of Hazardous Chemicals Rules, 1989
Ques :86
The trap used for a water closet is called
Ptrap
Gully trap
Antisiphon
trap
None of these
Ques :87
The maximum safe permissible limit of sulphates in domestic water supply is

600mg/L
500mg/L
200mg/L
300mg/L
Ques :88
The cleaning of slow sand filter is done by
scraping off top layers of sand and admitting water
passing air through the filter
passing a solution of air and lime through the filter
reversing the direction of flow of water
Ques :89
The ultimate BOD value of a waste
remains the same at all temperatures
decreases with temperature
increases with temperature
doubles with every 10° C rise in temperature
Ques :90
Which one of the following types of samples in relatively employed for the design of wastewater treatment plant
Composite sample
Grab sample
Integrated sample
None of these

Ques :91
Traffic capacity is the
Number of vehicles occupying a unit length of roadway at a given instant expressed as vehicles/km
Ability of roadway to accommodate traffic volume in terms of vehicles/hr
Maximum attainable speed of vehicles
Capacity of lane to accommodate the vehicles widthwise (across the road)
Ques :92
What is the standard for testing of road macadam in Aggregate Impact Test
18 kg wt, 30 cm drop, 20 blows
18 kg wt, 35 cm drop, 15 blows
14 kg wt, 35 cm drop, 20 blows
14 kg wt, 38 cm drop, 15 blows
Ques :93
In Los Angeles Abrasion Test on aggregates if the speed of the drum is increased to 50 rpm, then the abrasion value will
be unpredictable
remain unchanged
decrease
increase
Ques :94
The stress at which a material fractures under large number of reversals of stress is called
creep
ultimate strength
endurance limit
residual stress

Ques :95
The ratio of maximum deflection of a simply supported beam with a central load W and of a cantilever of same length and with a load W at its free
end
1/8
1/10
1/12
1/16
Ques :96
The slenderness ratio of a long column is
radius of gyration divided by area of cross section
length of column divided by least radius of gyration
area of cross section divided by least radius of gyration
area of cross section divided by radius of gyration
Ques :97
As the percentage of steel increases
depth of neutral axis increases
depth of neutral axis decreases
lever arm decreases
lever arm increases
Ques :98
The diameter of longitudinal bars of a column should never be less than

8 mm
10 mm
12 mm
16 mm
Ques :99
The ultimate strength of the steel used for prestressing is nearly



Ques :100
The height at which wind force acts on a moving vehicle on a bridge deck is
1.75 m
1.25 m
1.5 m
2.0 m