Civil Engineering MCQ Quiz Hub

1. In a reinforced concrete retaining wall, a shear key is provided, if the
Retaining wall is not safe against overturning
Retaining wall is not safe against sliding
Shear force in the toe slab is more than that in the heel slab
Shear stress in the vertical stream is excessive

2. Which of the following has high tensile strength?
Cold drawn wires
Thermo mechanically treated bars
Plain hot rolled wires
Mild steel

3. In a R.C. beam main reinforcement consists of 16 mm bars and coarse aggregate size used in 20 mm. The horizontal distance between two parallel reinforcing bars should not be less than
20 mm
25 mm
27 mm
30 mm

4. In a R.C. beam beam shear reinforcement should be always in the form of
Bent up bars with stirrups
Vertical stirrups
Inclined stirrups
Any one of the above

5. In the working stress method of R.C.C. design which one of the following is correct?
The modular ratio between steel and concrete remains constant
Shear deformations are neglected
Stress strain relation is linear, both for steel and concrete
All the above

6. Which one of the following is not the diameter of the market form of reinforcing bars?
28 mm
30 mm
32 mm
36 mm

7. M 75 concrete is regarded as
Ordinary concrete
Ultra high strength concrete
Standard concrete
High strength concrete

8. Snow load need not be considered in the design of structures in cold regions, if slope of the root is more than
25°
35°
60°
65°

9. If Fe 415 steel bars are used as tensile reinforcement, minimum percentage of steel to be used is
0.2
0.25
0.205
0.30

10. In the working stress method of R.C.C. design factor of safety used for concrete and steel are respectively
3 and 1.5
3 and 1.85
4 and 2
4 and 1.85

11. The maximum spacing of vertical shear reinforcement for a beam of size 250 x 360 mm is
250 mm
260 mm
270 mm
300 mm

12. Which one of the following statement is not correct regarding the torsional reinforcements to be provided in a slab with two adjustment edges discontinuous?
the length of each layer shall be of length 1/5th of the shorter span.
the total area of reinforcement shall be 3/4th the area required for the maximum moment at mid span
it consists of total four layers
it consists of two layers of reinforcement one at top and other at bottom

13. The width of stairs in a residential building should be at least
600 mm
750 mm
850 mm
900 mm

14. In cantilever retaining walls
toe slabs bend up and heal slab bends down
tow slab bends down and heal slab bends up
both toe and heal slab bend up
both slabs bend down

15. M 45 concrete is regarded as
high strength concrete
ultra high strength concrete
standard concrete
ordinary concrete

16. Characteristic load means
mean load + 5% of standard deviation
mean load + 10% of standard deviation
maximum load
mean load

17. Pick up the incorrect statement A : Standard hooks are provided in plain bars. B : Standard bends are provided in high yield bars. C : Standard hook or bend is provided in plain bars.
A and B are correct C is false
A and C are correct B is false
A is false B and C are correct
All the three are correct

18. The maximum area of tensile reinforcement to be used in a beam is to be restricted to
0.004 x effective area of the section
0.04 x gross area of the section
0.0057 x gross area of the section
0.057 x effective area of the section

19. IS 456-2000 recommends that the unsupported length of any column should not exceed _____ times the least lateral dimension of the column.
20
40
60
70

20. Which one of the following statement is not correct about curtailment of positive reinforcement in a continuous member?
at least one third bards should extend into the support for a 3/4rd development of length
cut-off bars shall extend for a distance not less than effective depth of the member beyond theoretical cut-off point.
cut-off bars shall extend for a distance not less than 12 times the bar diameter beyond theoretical cut-off point.
mnimum two bards should extend throughout

21. Spacing of longitudinal bars measured along the periphery of R.C. column shall not exceed
200 mm
300 mm
400 mm
500 mm

22. The depth of footing required for an isolated column depends upon
single shear
double shear
bending moment
all the three above

23. Which one of the following is the correct statement about R.C. retaining wall
toe slab is provided with reinforcement at top face and heel slab at bottom face
toe slab and heel slab are provided with reinforcement at bottom face
slab and heel slab are provided with reinforcement at bottom face
toe slab and heel slab are provided with reinforcement at top face

24. Which one of the following is not a post tensioning method?
Long line method
Lee-Macall system
Gifford udall system
Freyssinet system

25. Advantage of prestressed concrete member over equivalent strength R.C.C. member is
more durable
deformation is much less
dead weight is less
All of the above

26. For water retaining structures, minimum grade of concrete to be used is
M 15
M 25
M 30
M 35

27. In the stem of counterfort retaining wall main reinforcements are
vertically upward on the face away from earth fill
vertically upward on earth face
horizontally away from earth face in some portion and on earth face in some other position
horizontally on earth face

28. High carbon content in the steel causes
increase in tensile strength but decrease in ductility
decrease in tensile strength but increase in ductility
increase in tensile strength and ductility
decrease in both tensile strength and ductility

29. In a public building ideal tread is
200 x 250 mm
220 x 260 mm
270 x 300 mm
300 x 350 mm