Structural Design Online Test – Paper 2

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Vikash chaudhary

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Total Questions: 30
Time Allotted: 30 minutes
Passing Score: 50%
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Certificate: No
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1 / 30

1. In a singly reinforced beam, the effective cover is measured from

a) centroid of steel

b) inner face of outer steel

c) all of the above

d) outer face of outer steel

2 / 30

2. What is the minimum period for which the lime concrete in the foundation be left wet without the construction of masonry over it?

a) 15 days

b) 12 days

c) 9 days

d) 7 days

3 / 30

3. The minimum straight lap length in tension bars with hooks in an RCC beam is

a) 15 times the diameter of the bar or 200mm

b) 12 times the diameter of the bar or 400mm

c) 20 times the diameter of the bar or 400mm

d) none of the above

4 / 30

4. Strength of tor steel as compared to mild steel is

a) more

b) less

c) equal

d) no relation

5 / 30

5. Segregation is responsible for

a) honeycomb concrete

b) porous layers in concrete

c) sand streaks in concrete

d) all of the above

6 / 30

6. By over-reinforcing a beam, the moment of resistance can be increased not more than

a) 10%

b) 15%

c) 20%

d) 25%

7 / 30

7. The spacing of transverse reinforcement of a column is decided by the following consideration

a) the least lateral dimension of the column

b) sixteen times the diameter of the smallest longitudinal reinforcing rod in the column

c) forty-eight times the diameter of transverse reinforcement

d) all of the above

8 / 30

8. Presence of oils in water for concreting

a) improves strength

b) gives more slump

c) reduces workability

d) reduces strength

9 / 30

9. In a two-way slab, the torsion steel is provided at the

a) top

b) bottom

c) both (a) and (b) of the above

d) none of the above

10 / 30

10. The thickened part of a flat slab over its supporting column is technically known as

a) capital

b) drop panel

c) column head

d) none of the above

11 / 30

11. Buckling occurs in a column

a) great

b) short

c) too great

d) none of the above

12 / 30

12. In case of RCC building, the expansion joint is normally provided if the length of the building exceeds

a) 20 m

b) 30 m

c) 45 m

d) 50 m

13 / 30

13. The minimum thickness of the cover at the end of a reinforcing bar should be twice the diameter of the bar, subjected to a minimum of

a) 10mm

b) 12mm

c) 15mm

d) 25mm

14 / 30

14. Singly reinforced beam & doubly reinforced beam are decided based on

a) bending moment

b) shear force

c) bending moment & shear force

d) none of the above

15 / 30

15. In R.C.C. works, the proportion of the mixture 1:1.5:3, the volume of the cement is in

a) 0.2 m³

b) 0.4 m³

c) 0.5 m³

d) 0.1 m³

16 / 30

16. The moment of resistance of an under-reinforced section is computed on the basis of

a) compressive force developed in concrete

b) tensile force developed in steel

c) both of the above

d) none of the above

17 / 30

17. An under-reinforced section means

a) steel is provided at the underside only

b) steel provided is insufficient

c) steel provided on one face only

d) steel will yield first

18 / 30

18. In a doubly reinforced beam, the maximum shear stress occurs

a) along the centroid

b) along the natural axis

c) on planes between the neutral axis and the tensile reinforcement

d) on planes between the neutral axis and the compressive reinforcement

19 / 30

19. In an RCC beam, N.A means

a) not applicable

b) neutral axis

c) natural axis

d) normal axis

20 / 30

20. In an RCC beam, if the amount of steel increases, the depth of N.A.

a) remains constant

b) decreases

c) increases

d) none of the above

21 / 30

21. Concrete gains strength due to

a) chemical action of cement with coarse aggregate

b) hydration of cement

c) evaporation of water

d) all of the above

22 / 30

22. The minimum cover to the ties or spiral should not be less than

a) 8 mm

b) 10 mm

c) 12 mm

d) 25 mm

23 / 30

23. In a singly reinforced beam, the effective depth is measured from its compression edge to

a) tensile edge

b) tensile reinforcement

c) neutral axis of the beam

d) longitudinal central axis

24 / 30

24. The main reason for providing a number supported beam is to resist in that zone

a) tensile stress

b) compressive stress

c) shear stress

d) bond stress

25 / 30

25. Side face reinforcement is provided in a beam when the depth of the web in a beam exceeds

a) 250 mm

b) 500 mm

c) 750 mm

d) 1000 mm

26 / 30

26. Strength of concrete increases with

a) increase in water cement ratio

b) increase in fineness of cement

c) decrease in size of aggregate

d) decrease in curing time

27 / 30

27. The main reason for placing the main bar at the top in the case of a cantilever slab is

a) load at the top

b) tension at the top

c) all of the above

d) compression at the top

28 / 30

28. Distribution reinforcement in a simply supported slab is provided to distribute

a) load

b) temperature stress

c) shrinkage stress

d) all of the above

29 / 30

29. For a cantilever of effective depth of 50cm, the maximum span to satisfy vertical deflection limit is

a) 3.0m

b) 3.5m

c) 4.0m

d) 4.5m

30 / 30

30. The factor of safety for steel is based on its

a) yield stress

b) ultimate stress

c) both (a) and (b) above

d) none of the above

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Structural Design Online Test – Paper 2

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