Exam Details
Subject | ||
Paper | paper 1 | |
Exam / Course | mains | |
Department | ||
Organization | maharashtra public service commission | |
Position | ||
Exam Date | 2012 | |
City, State | maharashtra, |
Question Paper
1 In Residential building, kitchen should have aspect.
Eastern
Southern
South-Eastern
Northern
2 Workability of concrete can be measured by
Slump test
Compaction factor test
Kelly ball test
All the above
3 For a rectangular room, better proportion is to adopt length as times of breadth.
1 to 1·2
1·2 to 1·7
1·2 to 1·5
1·5 to 1·7
4 The laboratory slump test result of the fresh concrete is between 25 -50 mm. The degree of workability of such concrete is
very low
low
medium
high
5 Black cotton soil is a product of decomposition of
Granite
Marble
Basalt
Sandstone
6 The strength achieved by a brick depends on
composition of brick earth
nature of moulding adopted
burning and cooling process
All the above
7 Capacity of concrete to bear imposed stresses safely is called as
Compressive strength
Shear strength
Durability
Resistance
8 State whether the following statements are true or false:
a. Consistency test is used to determine the percentage of water required for preparing cement paste.
b. Vicat Apparatus is used for determining the consistency of cement.
a true, b true
a false, b false
a true, b false
a false, b true
9 Durability of construction material is
Resistance to crushing
Resistance to weathering
Shear strength
Compressive strength
10 Seasoning of timber means
removing the moisture content
reducing weight of timber
Both and
None of the above
11 the quantity of fine aggregate required per 50 kg of cement of M 150 2 4 grade of concrete_
0.340 kg
0.053 kg
0.035 kg
0.070 kg
12 Artificial method of seasoning timber is
boiling
chemical seasoning
water seasoning
All of the above
13 Laterite is used in
carving and ornamental works
fire resistance works
electrical switchboards
heavy engineering works
14 In medium carbon steel, carbon content varies from
0.25% to 0·60%
0.10% to 0.25%
0.60% to 0·75%
0.75% to 1.00%
15 Light weight concrete is also known as
low concrete
lean concrete
transparent concrete
cellular concrete
16 The process of tempering is applied to steel in hardening process for improving
ductility
strength
roughness
All of the above
17 A cantilever beam of uniform cross-section carries a uniformly distributed load over the portion of length as shown. Slope at free end will be
<img src='./qimages/-17.jpg'>
18 Shrinkage strain developed in post-tensioning beam when prestressing force transfer at the age of days is
0·003
loglO(t +1)loglO(t
0·001.
19 The at any section in a given beam is equal to corresponding section in conjugate beam.
slope, shear force •
deflection, shear force
slope, bending moment
slope, deflectioll
20 A beam of span carries a U.D.L. of per m run and prestressing force in the cable is What will be the eccentricity of parabolic cable at centre (i.e. dip) so as to nullify the bending effect 3 2
3I.2
3wL
wL 8P 3P 5P
11 A cast iron beam is a T-section as shown. It is supported and carrying a UDiformly distributed load. Which of the following is the correct bending stress distribution diagram if the element is stressed perfectly within plastic limit? .
22 In pretensioned when prestressed force is transferred by releasing tendon, the end of wire swells and develops wedge effect. At the end, prestressing force becomes zero. This is known as Hoyer effect Shear effect Wobbling effect Bursting effect SPACE FOR ROUGH WORK P.T.O. U01 6 A
23 Which part of the beam is subjected to pure bending in the following figure 20kN 30kN D Ar=2m
AB
BC
CD
No part of beam is subjected to pure bending •
24 Progressive increase in the inelastic deformation of concrete under sustained stress component is known as
Shrinkage of concrete
Creep of concrete •
Deformation of concrete
Yielding of concrete
25 Calculate the maximum stress acting on the cross-section of following element: . 200 . Pa:1 Cross-section .Take PI" 45 kN, P2 445 kN and P4 " 130 kN.
20 N/mm2
22·5 N/mm2
28·75 N/mm2
6·5 N/mm2
26 What are the stresses developed at the top and bottom of a rectangular beam subjected to prestressing force of 50 kN at a distance of 50 mm from bottom. The ds of beam is 100x100mm. . 10)
27 At room temperature the rods are shown in figure. When temperature is raised, what 1-0·3 m 1·25 Aluminium Steel dis 20 mm dia 10 rom
Compressive in aluminium and steel
Tensile in aluminium and steel
Compressive in aluminium and tensile in steel
'l'ensile in aluminium and 'compressive in steel SPACE FOR ROUGH WORK
28 The prestressed concrete is considered as a combination of steel and concrete, with steel taking tensile force passing through the tendon and concrete taking compressive force passing through the C.G. of stress distribution so that the two materials form a resisting couple to resist external moment. This concept is called as
strength concept
stress concept
load balancing concept
moment concept
29 If AC is principal plane, then magnitude of principal tensile stresses will be =15 MPa 40MPa A
15 MPa
5 MPa
45 MPa
Zero
30 In a post-tensioning system, high tension steel wires 5 mm to 8 mm diameter about 12 in number are arranged to form a group into a cable with a spring inside. This system is known as
The Freyssinet System
The Magnel Blaton System
P.S.C. Monowire System
C.C.L. Standard System SPACE FOR ROUGH WORK p.T.a.
31 A simply supported beam subjected to uniformly varying load of intensity W at left end reduces to zero at right end Then slope at end B is 5WL3 9WL3 3WL3 7WL3 360 EI 360 EI 360 EI 360 EI
32 If a moment is applied to the hinged end of a prismatic propped cantilever, then the moment at the fixed end will be
M
M/2
M/3
33 A single concentrated load W rolling over the beam of span L will cause the maximum bending moment and shear force on a section X at a distance x from left support. When the load is on the section, its maximum bending moment will be
wx
wx2(L
WL(L
34 Maximum number of unknown forces that can be detennined in concurrent force system under equilibrium is
zero
6
35 A beam fixed at one end and simply supported at the other end is carrying uniformly distributed load of intensity throughout the span L. Then reaction at simply supported end is
5 3 8 3
-wL -wL -wL 2 wL 8 8 5 . 36. A two span continuous beam having equal spans each of length 1 is subjected to u.d.l. of w per unit run over the whole beam.· The beam has constant EI. The bending moment at the middle support is wl2/4
wt2/8
wl2/12
wl2/16
37 A beam fixed at one end and free at the other end is subjected to V.D.L. of intensity over the entire span Then the deflection at free end will be
wL4/8 EI EI wL2/8 EI wL4/3 EI • SPACE FOR·ROUGH WORK 38•. A two span continuous beam having equal spans each of length Z is subjected to u.d.1. w per unit length. The beam has constant EI. The reaction at the middle support is wZ
5 wZ/2
5 wZ/4
5 wZ/S
39 A cable is supported at both ends at the same level and is subjected to U.D.L. over the entire span. Ifyc is the central dip and is the span of a cable, then horizontal thruat developed at the support is .
wZ3/Syc
wZ2/3yc
wZ2/Syc
wZ2/2yc
40 VIand V2 are the strain energies stored in a prismatic bar due to axial tensile forces PI and P2 respectively. The strain energy V stored in the same bar due to combined action of PI and P2 will be
V=VI+V2
V=VI xU 2
V<VI
V>VI +V2 2
41 "The bending moment at any point of an arch axis is proportional to the vertical intercept between the theoretical arch" is the statement of
Mohr's theorem
Eddy's theorem
Castigliano's theorem
Theorem ofleast work
42 A" three-hinged symmetrical parabolic arch is subjected to a u.d.l. of w per unit run over the whole span. Then the bending moment is zero at
supports
quarter spans
crown
All the three above
43 When one of the supports of a beam is at a lower level as compared to the other, it will cause a moment at both ends. The magnitude of this moment introduced in .slope deflection equation is 3Elll 4Elll El II 2Elll Z2 l2
44 A two-hinged parabolic arch is subjected to u.d.l. w over entire span. Then the horizontal thrust is wl2/3h wZ2/4h wZ2/6h wZ2/Sh SPACE FOR ROUGH WORK P.T.O. U01 10 A
45 The distance between rivet centers measured along transverse to the direction of force is
Gauge
Pitch
End distance
Maximum pitch
46 Determine the rivet value of 20 mm diameter rivets connecting 12 mm thick plate if it is in single shear. Gross area of rivet is 363·05 mm2, permissible stresses in shear and bearing are 80 MPa and 250 MPa respectively.
64·5 kN
645 kN
29·044 kN
290·44 kN
47 The effective length of fillet weld of length 200 mm and size 12 mm is
188 mm
176 mm
388 mm
200 mm
48 The type of weld used for joining two surfaces approximately at right angles to each other is known as
Butt weld
U groove weld
V groove weld
Fillet weld
49 The net effective area of a single angle section connected by one leg to the gusset plate is
50 The effective length of compression steel column of length which is effectively held in position at both ends but not restrained against rotation is
0·65 L
0·8 L
L
1·5 L
51 The axial force in each lacing in double lacing system is V V·
4nsin a 2nsin a v 2V
nsina nsina SPACE FOR ROUGH WORK
62 The beam is subjected to U.D.L. of 41·25 !tN/m. Effective span of beam is 8 m. Find section modulus for the section. Assume 165 MPa.
2 x 106 rom3 2 x 103rom3 2·5 x 106 mm3 2·5)( 103 rom3 IS. What is the effective length of beam ifcompreasion flange ia restrained fully apiDst lateral bending, as per IS 800 200 L
0·8 L
0·85 L
0·7 L
54 As per IS 800 1984, the thickness of slab base is " 3w (a2 3w (a2 4 4
66 Intermediate vertical stiffners are required in plate girder when d1tratio of the web w exceeds
85
80
90
75
66 In plate girder, flanges are designed to reBist
Shear force
Bending moment
Axial force
Torsional moment
57 The flange splice in plate girder should be selected at
maximum shear location
minimum shear location
maximum moment location
minimum moment location
58 Structural members of the truss which are supported on the principal rafter and which run transverse to the truss are called Rafters Purlins Sag tie Struts SPACE FOR ROUGH WORK p.T.a. U01 12 A
59 The moment of resistance offered by balanced section in W.S.M. is given by (As per IS 456 -2000)
1 2
1 2"2 •acbe • b . x "2 . acbe • b . d
1"2 •acbe • b • d .
1"2 . acbe • b . x •
60 The compressive strength requirements of 53 grade a.p..c. cement as per IS 12269 -1989 7 and 28 days in N/mm2 are
33, 43, 53
27, 37, 53
33,47, 53
27, 45, 53
61 In a rectangular beam of section b x subjected to ultimate torsional moment Tu, equivalent ultimate shear can be given as
Vu 1·6. bTu
1.6. Tu bd Tu . Tu
Vu 2. b·
2b
62 Area of footing of an axially loaded column subjected to working load of 1000 kN and safe bearing capacity of soil 250 kN/m2, is
4·0 m2
4·4 m2
6·0 m2
5·5 m2
63 Minimum depth of foundation is calculated using Rankine's formula in which is the angle of repose, qo is the safe bearing capacity and y is the unit weight of soil. The value is qo sinlj>r qo 1 cos lj>r
y I-sinlj> y l+coslj> qo -sinlj>r qo coslj>r
y l+sinlj> y l-coslj> SPACE FOR ROUGH WORK
64 If a retaining wall is to be constructed to retain water of height and is unit weight of water, then water pressure acting on retaining wall will be K wH2/2 a wH2/2
60 As per IS 456 2000, maximum benrling moment at a support next to end support of a three span continuous beam having each span subjected to V.D.L. in the form of dead load and live load is given by
L2 W L2
W L2 L2 10 d 9L 9d 10 L
66 Area of torsional reinforcement provided in a two-way slab at comers where both adjacent edges are continuous is
3 A st
0
67 A singly reinforced rectangular section, b x d is effective cis, fel< and fy are the characteristic strengths of concrete and steel respectively. The depth of neutral axis is calculated as 0.87f A y st 0.36fck bd2
68 The maximum strain in steel at failure in limit state method of design is considered as f f
y 1-15 E. 0·002
y 1·15 E. 0·0035 1·5 f f y
0·0035
0·002 1·5E E. • • SPACE FOR ROUGH WORK P.T.O.
69 In case of simply supported beam subjected to U.D.L. w throughout the span which develops maximum B.M. at the mid-span, the cracks formed during the failure· of beam at mid-span are
horizontal
inclined at 45°
inclined at 60°
vertical
70 In a slab cast monolithically with cantilever beam, the beam is above the slab so as to give plain soffit. Then the beam is designed as
Rectangular section
Flanged section
Doubly reinforced section
None of the above
71 The load carrying capacity of a circular column with helical reinforcement is how much more than that of column with lateral ties
5%
10%
15%
20%
72 For the design of a staircase, if R is the riser, T is the tread and D is the thickness of waist slab, then the load of waist slab per m width of stair in plan will be 2
25Dx( T
25Dx(JT2 T+R JT2+R2 2
(JT2 25DX( R 25Dx R JT2.j. R2 SPACE FOR ROUGH WORK A 15 U01
73 There is a post-tensioned prestressed concrete beam with effective simply supported span of 8 m. This beam with rectangular cross section is prestressed with parabolic cable with 200 kN force, having eccentricity 200 mm above neutral axis at mid-span and 200 mm below it at support. The cable can be replaced by an equivalent effect as 10kN/m 40kN-m 40kN-m . 40 kN-m
74 Principal tensile stresses at any section and at any fiber in a prestressed concrete beam are influenced by
Horizontal prestress in concrete
Vertical prestress in concrete
Shear stress in concrete
All of the above
75 Effeciency of a rectangular prestressed concrete section with dimensions b =0·6 d is
bd
0·5 bd
0·5
0·333
76 Which of the following statements is/are true with reference to a load balancing cable? Statement I The flexural stresses are uniform at any section throughout the span at service stage. Statement II The flexural stresses are zero in the extreme fibers at any section throughout the span at service stage. Statement III The shear stresses are zero at any section throughout the span at service stage.
I only
I and III only
II and III only
None of these SPACE FOR ROUGH WORK P.T.O.
77 As per IS 1343 -1980, loss of prestress in steel due to shrinkage in concrete in a pre-tension beam is if E. 2 x 105 MPa.
60 MPa
200 MPa
20 MPa
0·02 f. MPa
78 The net resultant stresses at bottom fiber of a section are zero means the resultant thrust must be p.assing from
extreme top fiber
neutral axis
upper kern point
lower kern point
79 In a post-tensioned prestressed concrete beam, jacking force is applied from one end only. The loss of stresses in steel due to friction between steel and surrounding material will be maximum at
Jacking end
Mid span
Anchored end
Loss of streSses in steel due to friction is uniform throughout the span
80 Minimum strength of concrete at transfer to avoid cracking of extreme fiber at a prestressed concrete beam with reference to limit state of servicability, maximum compression in flexure should be
0·7 Jrck
0·5 fek
0·24 Jrck
81 Vertical limits within which cable is to be provided in a post-tensioned prestressed concrete element is called as
Anchorage zone
End block
Transmission length zone
Safe cable zone
82 Minimum grade of concrete to be used for pre-and post-tension prestressed concrete construction are
M30 and M40 respectively
M30 in both cases
M;40 in both cases
M40 and M30 respectively SPACE FOR ROUGH WORK
88 The resist bursting tension, designed reinforcement is distributed in the zone of theloadedfaceof theendblock,where2yois depthofequivalentprism.
OYo to 2yo
Oyo to Yo
O·2yo to 2yo
O·2yo to Yo
84 What is the correct order of increase in ultimate moment of resistance of I. Pre-tension section II. Post-tension bonded section III. Post-tension unbonded section, keeping all other parameters same.
I,II andIII
III,II andI.
II, III and I
All sections will have same UMR
85 Deflection of a simply supported prestressed concrete beam of span and flexural rigidity due to a straight cable carrying prestressing force and eccentriCity below the neutral axis is 5 Pel2 i 2 1 pel
48 EI I
8EI 2 i pel2 5 pel2
Pel 8EI I
8 EI 48EI I
88 A cantilever beam of span is supporting a udl of intensity Most suitable cable profile will be parabolic cable profile I=--Iparabolic cable profile I parabolic cable profile SPACE FOR ROUGH WORK p.1.0.
87 The shortcoming of bar chart is
lack of degree of details
activity inter-relationship
does not show progress of work
All the above
88 Among the following, who is considered as the father of scientific management? Max Weber Henry Fayol F.W. Taylor Elton Mayo
89 Program Evaluation and Review Technique is used when
repetitive type of work exists
time estimation is uncertain
time estimation is very easy
cost optimization is of prime importance
90 Which of the following is the main contribution of scientific management?
A rational approach to solve organisation problem
Development of principles of management
Correlation improved working conditions and high production
All of the above
91 The sequence to be followed while developing the network diagram is a. defining objectives b. sequencing the activities c. breaking down the structure d. developing the relation between events
92 In what way does ABC analysis help the manager
To purchase material at low price
To exercise selective control
To purchase material very fast
To 'select good quality material
93 The optimistic time, pessimistic time and most likely time required for completion of activity is 11 and 6 days respectively. The time is
5 days
6 days
5·5 days
6·5 days SPACE FOR ROUGH WORK
84 Which of the following is the formula for Economic Order Quantity if M is annual demand, C is ordering cost, C is inventory carrying cost and S is unit price of an oc . item? t MC
EOQ SCc0 EOQ EOQ=c C oc 91t. The optimistic time, pessimistic time and most likely time required for completion of an activity is 8 and 6 days respectively. The variance of time estimate is 0·4356
0·450
0·400
0·500
96 Which of the following Acts specially covers safety legislation of construction industry in India
Contract Labour Act
Workmen's Compensation Act
Inter State Migrant Workers Act
There is no safety legislation oriented to construction industry
97 Most of the accidents in construction industry happen due to
lack of education and training
negligence and ignorlDce
Both and
None of the above
98 CPM network is
Activity oriented
Event oriented
Labour oriented
Money oriented
99 The fire safety requirements of the building are designed as per
IS 1645 -1960
IS 1256 -1967
IS 1647 -1960
IS 1646 -1960
100 Optimum duration of project corresponds to which of the following
Direct project cost
Indirect project cost
Crash project cost
Total project cost
Eastern
Southern
South-Eastern
Northern
2 Workability of concrete can be measured by
Slump test
Compaction factor test
Kelly ball test
All the above
3 For a rectangular room, better proportion is to adopt length as times of breadth.
1 to 1·2
1·2 to 1·7
1·2 to 1·5
1·5 to 1·7
4 The laboratory slump test result of the fresh concrete is between 25 -50 mm. The degree of workability of such concrete is
very low
low
medium
high
5 Black cotton soil is a product of decomposition of
Granite
Marble
Basalt
Sandstone
6 The strength achieved by a brick depends on
composition of brick earth
nature of moulding adopted
burning and cooling process
All the above
7 Capacity of concrete to bear imposed stresses safely is called as
Compressive strength
Shear strength
Durability
Resistance
8 State whether the following statements are true or false:
a. Consistency test is used to determine the percentage of water required for preparing cement paste.
b. Vicat Apparatus is used for determining the consistency of cement.
a true, b true
a false, b false
a true, b false
a false, b true
9 Durability of construction material is
Resistance to crushing
Resistance to weathering
Shear strength
Compressive strength
10 Seasoning of timber means
removing the moisture content
reducing weight of timber
Both and
None of the above
11 the quantity of fine aggregate required per 50 kg of cement of M 150 2 4 grade of concrete_
0.340 kg
0.053 kg
0.035 kg
0.070 kg
12 Artificial method of seasoning timber is
boiling
chemical seasoning
water seasoning
All of the above
13 Laterite is used in
carving and ornamental works
fire resistance works
electrical switchboards
heavy engineering works
14 In medium carbon steel, carbon content varies from
0.25% to 0·60%
0.10% to 0.25%
0.60% to 0·75%
0.75% to 1.00%
15 Light weight concrete is also known as
low concrete
lean concrete
transparent concrete
cellular concrete
16 The process of tempering is applied to steel in hardening process for improving
ductility
strength
roughness
All of the above
17 A cantilever beam of uniform cross-section carries a uniformly distributed load over the portion of length as shown. Slope at free end will be
<img src='./qimages/-17.jpg'>
18 Shrinkage strain developed in post-tensioning beam when prestressing force transfer at the age of days is
0·003
loglO(t +1)loglO(t
0·001.
19 The at any section in a given beam is equal to corresponding section in conjugate beam.
slope, shear force •
deflection, shear force
slope, bending moment
slope, deflectioll
20 A beam of span carries a U.D.L. of per m run and prestressing force in the cable is What will be the eccentricity of parabolic cable at centre (i.e. dip) so as to nullify the bending effect 3 2
3I.2
3wL
wL 8P 3P 5P
11 A cast iron beam is a T-section as shown. It is supported and carrying a UDiformly distributed load. Which of the following is the correct bending stress distribution diagram if the element is stressed perfectly within plastic limit? .
22 In pretensioned when prestressed force is transferred by releasing tendon, the end of wire swells and develops wedge effect. At the end, prestressing force becomes zero. This is known as Hoyer effect Shear effect Wobbling effect Bursting effect SPACE FOR ROUGH WORK P.T.O. U01 6 A
23 Which part of the beam is subjected to pure bending in the following figure 20kN 30kN D Ar=2m
AB
BC
CD
No part of beam is subjected to pure bending •
24 Progressive increase in the inelastic deformation of concrete under sustained stress component is known as
Shrinkage of concrete
Creep of concrete •
Deformation of concrete
Yielding of concrete
25 Calculate the maximum stress acting on the cross-section of following element: . 200 . Pa:1 Cross-section .Take PI" 45 kN, P2 445 kN and P4 " 130 kN.
20 N/mm2
22·5 N/mm2
28·75 N/mm2
6·5 N/mm2
26 What are the stresses developed at the top and bottom of a rectangular beam subjected to prestressing force of 50 kN at a distance of 50 mm from bottom. The ds of beam is 100x100mm. . 10)
27 At room temperature the rods are shown in figure. When temperature is raised, what 1-0·3 m 1·25 Aluminium Steel dis 20 mm dia 10 rom
Compressive in aluminium and steel
Tensile in aluminium and steel
Compressive in aluminium and tensile in steel
'l'ensile in aluminium and 'compressive in steel SPACE FOR ROUGH WORK
28 The prestressed concrete is considered as a combination of steel and concrete, with steel taking tensile force passing through the tendon and concrete taking compressive force passing through the C.G. of stress distribution so that the two materials form a resisting couple to resist external moment. This concept is called as
strength concept
stress concept
load balancing concept
moment concept
29 If AC is principal plane, then magnitude of principal tensile stresses will be =15 MPa 40MPa A
15 MPa
5 MPa
45 MPa
Zero
30 In a post-tensioning system, high tension steel wires 5 mm to 8 mm diameter about 12 in number are arranged to form a group into a cable with a spring inside. This system is known as
The Freyssinet System
The Magnel Blaton System
P.S.C. Monowire System
C.C.L. Standard System SPACE FOR ROUGH WORK p.T.a.
31 A simply supported beam subjected to uniformly varying load of intensity W at left end reduces to zero at right end Then slope at end B is 5WL3 9WL3 3WL3 7WL3 360 EI 360 EI 360 EI 360 EI
32 If a moment is applied to the hinged end of a prismatic propped cantilever, then the moment at the fixed end will be
M
M/2
M/3
33 A single concentrated load W rolling over the beam of span L will cause the maximum bending moment and shear force on a section X at a distance x from left support. When the load is on the section, its maximum bending moment will be
wx
wx2(L
WL(L
34 Maximum number of unknown forces that can be detennined in concurrent force system under equilibrium is
zero
6
35 A beam fixed at one end and simply supported at the other end is carrying uniformly distributed load of intensity throughout the span L. Then reaction at simply supported end is
5 3 8 3
-wL -wL -wL 2 wL 8 8 5 . 36. A two span continuous beam having equal spans each of length 1 is subjected to u.d.l. of w per unit run over the whole beam.· The beam has constant EI. The bending moment at the middle support is wl2/4
wt2/8
wl2/12
wl2/16
37 A beam fixed at one end and free at the other end is subjected to V.D.L. of intensity over the entire span Then the deflection at free end will be
wL4/8 EI EI wL2/8 EI wL4/3 EI • SPACE FOR·ROUGH WORK 38•. A two span continuous beam having equal spans each of length Z is subjected to u.d.1. w per unit length. The beam has constant EI. The reaction at the middle support is wZ
5 wZ/2
5 wZ/4
5 wZ/S
39 A cable is supported at both ends at the same level and is subjected to U.D.L. over the entire span. Ifyc is the central dip and is the span of a cable, then horizontal thruat developed at the support is .
wZ3/Syc
wZ2/3yc
wZ2/Syc
wZ2/2yc
40 VIand V2 are the strain energies stored in a prismatic bar due to axial tensile forces PI and P2 respectively. The strain energy V stored in the same bar due to combined action of PI and P2 will be
V=VI+V2
V=VI xU 2
V<VI
V>VI +V2 2
41 "The bending moment at any point of an arch axis is proportional to the vertical intercept between the theoretical arch" is the statement of
Mohr's theorem
Eddy's theorem
Castigliano's theorem
Theorem ofleast work
42 A" three-hinged symmetrical parabolic arch is subjected to a u.d.l. of w per unit run over the whole span. Then the bending moment is zero at
supports
quarter spans
crown
All the three above
43 When one of the supports of a beam is at a lower level as compared to the other, it will cause a moment at both ends. The magnitude of this moment introduced in .slope deflection equation is 3Elll 4Elll El II 2Elll Z2 l2
44 A two-hinged parabolic arch is subjected to u.d.l. w over entire span. Then the horizontal thrust is wl2/3h wZ2/4h wZ2/6h wZ2/Sh SPACE FOR ROUGH WORK P.T.O. U01 10 A
45 The distance between rivet centers measured along transverse to the direction of force is
Gauge
Pitch
End distance
Maximum pitch
46 Determine the rivet value of 20 mm diameter rivets connecting 12 mm thick plate if it is in single shear. Gross area of rivet is 363·05 mm2, permissible stresses in shear and bearing are 80 MPa and 250 MPa respectively.
64·5 kN
645 kN
29·044 kN
290·44 kN
47 The effective length of fillet weld of length 200 mm and size 12 mm is
188 mm
176 mm
388 mm
200 mm
48 The type of weld used for joining two surfaces approximately at right angles to each other is known as
Butt weld
U groove weld
V groove weld
Fillet weld
49 The net effective area of a single angle section connected by one leg to the gusset plate is
50 The effective length of compression steel column of length which is effectively held in position at both ends but not restrained against rotation is
0·65 L
0·8 L
L
1·5 L
51 The axial force in each lacing in double lacing system is V V·
4nsin a 2nsin a v 2V
nsina nsina SPACE FOR ROUGH WORK
62 The beam is subjected to U.D.L. of 41·25 !tN/m. Effective span of beam is 8 m. Find section modulus for the section. Assume 165 MPa.
2 x 106 rom3 2 x 103rom3 2·5 x 106 mm3 2·5)( 103 rom3 IS. What is the effective length of beam ifcompreasion flange ia restrained fully apiDst lateral bending, as per IS 800 200 L
0·8 L
0·85 L
0·7 L
54 As per IS 800 1984, the thickness of slab base is " 3w (a2 3w (a2 4 4
66 Intermediate vertical stiffners are required in plate girder when d1tratio of the web w exceeds
85
80
90
75
66 In plate girder, flanges are designed to reBist
Shear force
Bending moment
Axial force
Torsional moment
57 The flange splice in plate girder should be selected at
maximum shear location
minimum shear location
maximum moment location
minimum moment location
58 Structural members of the truss which are supported on the principal rafter and which run transverse to the truss are called Rafters Purlins Sag tie Struts SPACE FOR ROUGH WORK p.T.a. U01 12 A
59 The moment of resistance offered by balanced section in W.S.M. is given by (As per IS 456 -2000)
1 2
1 2"2 •acbe • b . x "2 . acbe • b . d
1"2 •acbe • b • d .
1"2 . acbe • b . x •
60 The compressive strength requirements of 53 grade a.p..c. cement as per IS 12269 -1989 7 and 28 days in N/mm2 are
33, 43, 53
27, 37, 53
33,47, 53
27, 45, 53
61 In a rectangular beam of section b x subjected to ultimate torsional moment Tu, equivalent ultimate shear can be given as
Vu 1·6. bTu
1.6. Tu bd Tu . Tu
Vu 2. b·
2b
62 Area of footing of an axially loaded column subjected to working load of 1000 kN and safe bearing capacity of soil 250 kN/m2, is
4·0 m2
4·4 m2
6·0 m2
5·5 m2
63 Minimum depth of foundation is calculated using Rankine's formula in which is the angle of repose, qo is the safe bearing capacity and y is the unit weight of soil. The value is qo sinlj>r qo 1 cos lj>r
y I-sinlj> y l+coslj> qo -sinlj>r qo coslj>r
y l+sinlj> y l-coslj> SPACE FOR ROUGH WORK
64 If a retaining wall is to be constructed to retain water of height and is unit weight of water, then water pressure acting on retaining wall will be K wH2/2 a wH2/2
60 As per IS 456 2000, maximum benrling moment at a support next to end support of a three span continuous beam having each span subjected to V.D.L. in the form of dead load and live load is given by
L2 W L2
W L2 L2 10 d 9L 9d 10 L
66 Area of torsional reinforcement provided in a two-way slab at comers where both adjacent edges are continuous is
3 A st
0
67 A singly reinforced rectangular section, b x d is effective cis, fel< and fy are the characteristic strengths of concrete and steel respectively. The depth of neutral axis is calculated as 0.87f A y st 0.36fck bd2
68 The maximum strain in steel at failure in limit state method of design is considered as f f
y 1-15 E. 0·002
y 1·15 E. 0·0035 1·5 f f y
0·0035
0·002 1·5E E. • • SPACE FOR ROUGH WORK P.T.O.
69 In case of simply supported beam subjected to U.D.L. w throughout the span which develops maximum B.M. at the mid-span, the cracks formed during the failure· of beam at mid-span are
horizontal
inclined at 45°
inclined at 60°
vertical
70 In a slab cast monolithically with cantilever beam, the beam is above the slab so as to give plain soffit. Then the beam is designed as
Rectangular section
Flanged section
Doubly reinforced section
None of the above
71 The load carrying capacity of a circular column with helical reinforcement is how much more than that of column with lateral ties
5%
10%
15%
20%
72 For the design of a staircase, if R is the riser, T is the tread and D is the thickness of waist slab, then the load of waist slab per m width of stair in plan will be 2
25Dx( T
25Dx(JT2 T+R JT2+R2 2
(JT2 25DX( R 25Dx R JT2.j. R2 SPACE FOR ROUGH WORK A 15 U01
73 There is a post-tensioned prestressed concrete beam with effective simply supported span of 8 m. This beam with rectangular cross section is prestressed with parabolic cable with 200 kN force, having eccentricity 200 mm above neutral axis at mid-span and 200 mm below it at support. The cable can be replaced by an equivalent effect as 10kN/m 40kN-m 40kN-m . 40 kN-m
74 Principal tensile stresses at any section and at any fiber in a prestressed concrete beam are influenced by
Horizontal prestress in concrete
Vertical prestress in concrete
Shear stress in concrete
All of the above
75 Effeciency of a rectangular prestressed concrete section with dimensions b =0·6 d is
bd
0·5 bd
0·5
0·333
76 Which of the following statements is/are true with reference to a load balancing cable? Statement I The flexural stresses are uniform at any section throughout the span at service stage. Statement II The flexural stresses are zero in the extreme fibers at any section throughout the span at service stage. Statement III The shear stresses are zero at any section throughout the span at service stage.
I only
I and III only
II and III only
None of these SPACE FOR ROUGH WORK P.T.O.
77 As per IS 1343 -1980, loss of prestress in steel due to shrinkage in concrete in a pre-tension beam is if E. 2 x 105 MPa.
60 MPa
200 MPa
20 MPa
0·02 f. MPa
78 The net resultant stresses at bottom fiber of a section are zero means the resultant thrust must be p.assing from
extreme top fiber
neutral axis
upper kern point
lower kern point
79 In a post-tensioned prestressed concrete beam, jacking force is applied from one end only. The loss of stresses in steel due to friction between steel and surrounding material will be maximum at
Jacking end
Mid span
Anchored end
Loss of streSses in steel due to friction is uniform throughout the span
80 Minimum strength of concrete at transfer to avoid cracking of extreme fiber at a prestressed concrete beam with reference to limit state of servicability, maximum compression in flexure should be
0·7 Jrck
0·5 fek
0·24 Jrck
81 Vertical limits within which cable is to be provided in a post-tensioned prestressed concrete element is called as
Anchorage zone
End block
Transmission length zone
Safe cable zone
82 Minimum grade of concrete to be used for pre-and post-tension prestressed concrete construction are
M30 and M40 respectively
M30 in both cases
M;40 in both cases
M40 and M30 respectively SPACE FOR ROUGH WORK
88 The resist bursting tension, designed reinforcement is distributed in the zone of theloadedfaceof theendblock,where2yois depthofequivalentprism.
OYo to 2yo
Oyo to Yo
O·2yo to 2yo
O·2yo to Yo
84 What is the correct order of increase in ultimate moment of resistance of I. Pre-tension section II. Post-tension bonded section III. Post-tension unbonded section, keeping all other parameters same.
I,II andIII
III,II andI.
II, III and I
All sections will have same UMR
85 Deflection of a simply supported prestressed concrete beam of span and flexural rigidity due to a straight cable carrying prestressing force and eccentriCity below the neutral axis is 5 Pel2 i 2 1 pel
48 EI I
8EI 2 i pel2 5 pel2
Pel 8EI I
8 EI 48EI I
88 A cantilever beam of span is supporting a udl of intensity Most suitable cable profile will be parabolic cable profile I=--Iparabolic cable profile I parabolic cable profile SPACE FOR ROUGH WORK p.1.0.
87 The shortcoming of bar chart is
lack of degree of details
activity inter-relationship
does not show progress of work
All the above
88 Among the following, who is considered as the father of scientific management? Max Weber Henry Fayol F.W. Taylor Elton Mayo
89 Program Evaluation and Review Technique is used when
repetitive type of work exists
time estimation is uncertain
time estimation is very easy
cost optimization is of prime importance
90 Which of the following is the main contribution of scientific management?
A rational approach to solve organisation problem
Development of principles of management
Correlation improved working conditions and high production
All of the above
91 The sequence to be followed while developing the network diagram is a. defining objectives b. sequencing the activities c. breaking down the structure d. developing the relation between events
92 In what way does ABC analysis help the manager
To purchase material at low price
To exercise selective control
To purchase material very fast
To 'select good quality material
93 The optimistic time, pessimistic time and most likely time required for completion of activity is 11 and 6 days respectively. The time is
5 days
6 days
5·5 days
6·5 days SPACE FOR ROUGH WORK
84 Which of the following is the formula for Economic Order Quantity if M is annual demand, C is ordering cost, C is inventory carrying cost and S is unit price of an oc . item? t MC
EOQ SCc0 EOQ EOQ=c C oc 91t. The optimistic time, pessimistic time and most likely time required for completion of an activity is 8 and 6 days respectively. The variance of time estimate is 0·4356
0·450
0·400
0·500
96 Which of the following Acts specially covers safety legislation of construction industry in India
Contract Labour Act
Workmen's Compensation Act
Inter State Migrant Workers Act
There is no safety legislation oriented to construction industry
97 Most of the accidents in construction industry happen due to
lack of education and training
negligence and ignorlDce
Both and
None of the above
98 CPM network is
Activity oriented
Event oriented
Labour oriented
Money oriented
99 The fire safety requirements of the building are designed as per
IS 1645 -1960
IS 1256 -1967
IS 1647 -1960
IS 1646 -1960
100 Optimum duration of project corresponds to which of the following
Direct project cost
Indirect project cost
Crash project cost
Total project cost