Civil Quiz
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You have 30 questions related to your stream.
- 1.A rectangular beam of length I supported at its two ends carries a central concentrated load W at its centre. The maximum deflection occurs
- A.
At the ends
- B.
At 1/3 from both ends
- C.
At the mid span
- D.
At 1/4 from both ends
- 2.If the depth is kept constant for beam of uniform strength then its width will vary proportional to .
- A.
M
- B.
Sqrt(M)
- C.
M^2
- D.
M^3
- 3.When a beam deflects into a uniform strength then its width will vary proportional to
- A.
I/2R
- B.
I/8R
- C.
I^2 /8R
- D.
I^2 /2d
- 4.The longitudinal stress in a thin cylindrical shell is
- A.
Pd/4t
- B.
Pd/2t
- C.
Pt/4d
- D.
Pt/2d
- 5.The ratio of maximum shear stress and average shear stress for a rectangular section is
- A.
1.5
- B.
2
- C.
2.5
- D.
3
- 6.A fixed beam of span L carries a central point load W.The maximum sagging bending moment in the beam is
- A.
WL/2
- B.
WL/4
- C.
WL/8
- D.
WL/16
- 7.Air entrainment in the concrete increases
- A.
Workability
- B.
Strength
- C.
The effects of temperature
- D.
The unit weight
- 8.The relation between modulus of rupture Fcr and characteristic strength of concrete Fck is given by
- A.
Fcr = 0.35 S Fck
- B.
Fcr = 0.5 S Fck
- C.
Fcr = 0.7 S Fck
- D.
Fcr = 1.2 S Fck
- 9.The compressive strength of 100 mm cube as compared to 150 mm cube is always
- A.
Less
- B.
More
- C.
Equal
- D.
May be any of the above
- 10.For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankine's theory
- A.
Is always less than 1
- B.
Is always greater than 1
- C.
Can be more than 1
- D.
Can be less than 1
- 11.For bars in tension a standard hook has an anchorage value equivalent to a strength length of
- A.
8
- B.
12
- C.
16
- D.
24
- 12.Cube strength of controlled concrete to be used for pre-tensioned and post-tensioned work respectively should not be less than
- A.
350 Kg/cm^2 and 420 Kg/cm^2
- B.
420 Kg/cm^2 and 530 Kg/cm^2
- C.
420 Kg/cm^2 and 350 Kg/cm^2
- D.
530 Kg/cm^2 and 420 Kg/cm^2
- 13.The creep strains are
- A.
Caused due to dead loads only
- B.
Caused due to live loads only
- C.
Caused due to both dead and live load
- D.
Independent of loads
- 14.Ratio of compressive strength to tensile strength of concrete
- A.
Increases with age
- B.
Decreases with age
- C.
Remains constant
- D.
None of the above
- 15.In limit state design of concrete for flexure, the area of stress block is taken as
- A.
0.36 Fck Xu
- B.
0.42 Fck Xu
- C.
0.446 Fck Xu
- D.
0.53 Fck Xu
- 16.The fitness modulus of the fine aggregate is in the range of
- A.
2.0 to 3.5
- B.
3.5 to 5.0
- C.
5.0 to 7.0
- D.
6 to 8.5
- 17.According to IS:456-1978, the maximum reinforcement in a column is
- A.
2%
- B.
4%
- C.
6%
- D.
8%
- 18.The minimum cover in a slab should neither be less than the diameter of bar nor less than
- A.
10 mm
- B.
15 mm
- C.
20 mm
- D.
13 mm
- 19.If the permissible stress in steel in tension is 140 N/mm^2, Permissible stress in concrete in bending compression is 5N / mm^2. Then the depth of neutral axis for a singly reinforced rectangular balanced section will be
- A.
0.35 d
- B.
0.40 d
- C.
0.45 d
- D.
Dependent on grade of concrete also
- 20.The slab is designed as one way if the ratio of long span is
- A.
Less than 1
- B.
Between 1 and 1.5
- C.
Between 1.5 and 2
- D.
Greater than 2
- 21.In any beam when the moment of inertia about the neutral axis is doubled, its deflection is
- A.
Doubled
- B.
Tripled
- C.
Halved
- D.
Minimum
- 22.The limits of percentage of the longitudinal reinforcement in a column is given by
- A.
0.15% to 2%
- B.
0.8% to 4%
- C.
0.8% to 6%
- D.
0.8% to 8%
- 23.A common footing provided for two columns is called a
- A.
Mat foundation
- B.
Raft foundation
- C.
Combined footing
- D.
Common foundation
- 24.For reinforced concrete (M15) members immersed in sea water the cover shall be
- A.
Same as in the usual case
- B.
25 mm more than the cover in the usual cases
- C.
40 mm more than the cover in the usual cases
- D.
50 mm more than the cover in the usual cases
- 25.The modulus of elasticity of steel is
- A.
150 KN/mm^2
- B.
200 KN/mm^2
- C.
250 KN/mm^2
- D.
275 KN/mm^2
- 26.The number of rivets for connecting a strut to a gusset plate shall not be less than
- A.
2
- B.
3
- C.
4
- D.
5
- 27.The inclination of a lacing bar with the axis of the compression member shall not exceed
- A.
60
- B.
70
- C.
45
- D.
30
- 28.To minimize the effect of differential settlement, the area of footing should be designed for
- A.
Dead load only
- B.
Dead load + live load
- C.
Dead load + fraction of live load
- D.
Live load + fraction of dead load
- 29.A reduction factor Cr, load carrying capacity of a long columns is given by
- A.
Cr = 1.25 - Le/24b
- B.
Cr = 1 - Le/48b
- C.
Cr = 1.25 - Le/48b
- D.
Cr = 1.5 - Le/48b
- 30.ML^-1 T-2 is the dimension of
- A.
Force
- B.
Pressure
- C.
Energy
- D.
Power
- 31.Which of the following has highest coefficient of discharge
- A.
Sharp edged orifice
- B.
Venturimeter
- C.
Borda's mouth piece running free
- D.
Cippoletti weir
- 32.Direct run off is the sum of
- A.
Surface run off and mass flow
- B.
Base flow and ground water run off
- C.
Deployed sub surface run off and deep percolation
- D.
Surface run off and interflow
- 33.The formula used to calculate maximum flood discharge for deccan catchments is
- A.
Dicken's formula
- B.
Ryve's formula
- C.
Ali Nawab Jung Bahadur formula
- D.
Ingli's formula
- 34.In Sutro weir the discharge is proportional to
- A.
H
- B.
H^1/2
- C.
H^3/2
- D.
H^5/2
- 35.Number of rivets required in a joint is
- A.
Load/shear strength of a rivet
- B.
Load/bearing strength of a rivet
- C.
Load/tearing strength of a rivet
- D.
Load/rivet value
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