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%
Randomization: Yes
Certificate: No
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1 / 30

1. The diameter of bars normally used in a column is

a) 10-25 mm

b) 12-25 mm

c) 14-25 mm

d) all of the above

2 / 30

2. According to the steel beam theory of doubly reinforced beams

a) tension is resisted by tension steel

b) compression is resisted by compression steel

c) stress in tension steel equals the stress in compression steel

d) all of the above

3 / 30

3. Bond strength of HYSD bar as compared to plain bar is more by

a) 20%

b) 30%

c) 40%

d) 60%

4 / 30

4. 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

5 / 30

5. The limits of the percentage of the longitudinal reinforcement in a column are given by

a) 0.8% to 6%

b) 0.8%

c) 1.0% to 4%

d) 1.0% to 6%

6 / 30

6. In a beam section, if the steel reinforcement is of such a magnitude that the permissible stresses in concrete and steel are developed simultaneously, the section is known as

a) balanced section

b) critical section

c) economical section

d) any one of the above

7 / 30

7. Strength of concrete increases with

a) increase in water cement ratio

b) decrease in water cement ratio

c) decrease in size of aggregate

d) decrease in curing time

8 / 30

8. Dimensions of a beam need to be changed if the shear stress is more than

a) 10 kg/cm²

b) 15 kg/cm²

c) 20 kg/cm²

d) 25 kg/cm²

9 / 30

9. The length of the straight portion of a bar beyond the end of the hook should be at least

a) four times the diameter

b) five times the diameter

c) six times the diameter

d) seven times the diameter

10 / 30

10. The workability of concrete can be improved by

a) more sand

b) more cement

c) more fine aggregate

d) fineness of coarse aggregate

11 / 30

11. The approximate ratio of the direct tensile strength to flexural strength is

a) 0.25

b) 0.33

c) 0.5

d) 0.90

12 / 30

12. Inert material of cement concrete mix is

a) water

b) cement

c) aggregate

d) all of the above

13 / 30

13. After casting, an ordinary cement concrete on drying

a) shrinks

b) expands

c) remains unchanged

d) can expand or shrink

14 / 30

14. If the thickness of the slab is 100 mm then the maximum diameter of the bar placed in the slab should be

a) 8 mm

b) 10 mm

c) 12 mm

d) 16 mm

15 / 30

15. A reinforced concrete beam will crack if tensile stress set up in the concrete below the neutral axis is

a) less than the permissible stress

b) more than the permissible stress

c) equal to the permissible stress

d) any one of the above

16 / 30

16. 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

17 / 30

17. The enlarged head of a supporting column of a flat slab is technically known as

a) capital

b) drop panel

c) column head

d) none of the above

18 / 30

18. The entrapped air in concrete

a) increases workability

b) decreases workability

c) increases strength

d) none of the above

19 / 30

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

a) more

b) less

c) equal

d) no relation

20 / 30

20. Which of the following statements is correct? As the area of steel increases

a) the depth of the neutral axis decreases

b) the depth of the neutral axis increases

c) the lever arm increases

d) none of the above

21 / 30

21. In R.B. slab, the permissible compressive stress in bricks is generally taken as

a) 10 kg/cm²

b) 20 kg/cm²

c) 30 kg/cm²

d) 40 kg/cm²

22 / 30

22. The workability of concrete can be improved by

a) increase the size of aggregate

b) decrease the size of aggregate

c) increase the coarse of aggregate

d) increase the flaky aggregate

23 / 30

23. In a simply supported slab, alternate bars are curtailed at

a) 1/4th of the span

b) 1/5th of the span

c) 1/6th of the span

d) 1/7th of the span

24 / 30

24. The workability of concrete is directly proportional to

a) grading of the aggregate

b) time of transit

c) aggregate cement ratio

d) none of the above

25 / 30

25. A flat slab is supported

a) on beams

b) on columns

c) on beams and columns

d) on columns monolithically built with slab

26 / 30

26. The compressive strength of concrete determined from a 150mm × 150mm cylinder as compared to that determined from a 150mm cube is

a) more

b) less

c) equal

d) none of the above

27 / 30

27. Spacing of longitudinal bars measured along the periphery of the column should not be more than (as per IS: 456-2000)

a) 20 cm

b) 25 cm

c) 30 cm

d) 15 cm

28 / 30

28. Minimum embedment of reinforcement in a concrete flexural member should be

a) 30 θ

b) 40 θ

c) 50 θ

d) 60 θ

29 / 30

29. The maximum bulking factor for sand is

a) 1.00

b) 1.10

c) 1.20

d) 1.40

30 / 30

30. The anchorage value of the standard hook is taken as 16 times the diameter of the reinforcing bar if the angle of the bend is equal to

a) 30°

b) 40°

c) 180°

d) any of the above

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Structural Design Online Test – Paper 2

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