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 an RCC beam, N.A means

a) not applicable

b) neutral axis

c) natural axis

d) normal axis

2 / 30

2. 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

3 / 30

3. A diagonal crack is introduced in a beam due to

a) bending moment (BM)

b) shear force (SF)

c) bending moment & shear force (BM & SF)

d) none of the above

4 / 30

4. The initial and final setting times for ordinary Portland cement are approximately related by (where T & t are the final and initial setting times)

a) T = 540+t

b) T = 270+t

c) T = 90+1.2t

d) T = 90+t

5 / 30

5. A column is considered as a long column if its slenderness ratio is more than

a) 28

b) 12

c) 20

d) 24

6 / 30

6. 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

7 / 30

7. Laps in bars are equal to

a) bond length

b) twice bond length

c) 1.5 to twice bond length

d) none of the above

8 / 30

8. In the working stress design, the allowable bending compressive strain in RCC is

a) 0.003

b) 0.0003

c) 0.002

d) none of the above

9 / 30

9. 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

10 / 30

10. Segregation is responsible for

a) honeycomb concrete

b) porous layers in concrete

c) sand streaks in concrete

d) all of the above

11 / 30

11. 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

12 / 30

12. The safe bond stress between concrete and steel is determined by

a) tensile test

b) compressive test

c) shear test

d) pull-out test

13 / 30

13. The durability of concrete is proportional to

a) sand content

b) water cement ratio

c) aggregate ratio

d) cement aggregate ratio

14 / 30

14. An air entraining agent when added in concrete improves

a) strength

b) workability

c) density

d) durability

15 / 30

15. The minimum cover to the main bars in an RCC beam should be

a) 15mm or diameter of the bar

b) 25mm or diameter of the bar

c) 25mm size of the aggregate

d) 40 mm or diameter of the bar

16 / 30

16. The designed main bars are placed in a two-way slab

a) along the short span

b) along the long span

c) perpendicular to the length of the slab

d) all of the above

17 / 30

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

a) 30 θ

b) 40 θ

c) 50 θ

d) 60 θ

18 / 30

18. Modulus of rupture is a measure of

a) direct tensile strength

b) split tensile strength

c) flexural tensile strength

d) direct compressive strength

19 / 30

19. The maximum bulking factor for sand is

a) 1.00

b) 1.10

c) 1.20

d) 1.40

20 / 30

20. In a slab, the pitch of the distribution reinforcement should not exceed its effective depth

a) three times

b) four times

c) five times

d) six times

21 / 30

21. Presence of oils in water for concreting

a) improves strength

b) gives more slump

c) reduces workability

d) reduces strength

22 / 30

22. 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%

23 / 30

23. A balanced design of a beam is a condition where the ..... stresses occurring are equal to the permissible stress.

a) least

b) average

c) greatest

d) none of these

24 / 30

24. A slender column is a

a) short column

b) long column

c) mix

d) column of varying cross-section

25 / 30

25. The ratio of the effective length of a cantilever column to its height is about

a) 2.5

b) 2.0

c) 1.5

d) 1.0

26 / 30

26. The strength of concrete is directly proportional to

a) cement water ratio

b) water cement ratio

c) sand cement ratio

d) water aggregate ratio

27 / 30

27. A doubly reinforced beam is economical as compared to a singly reinforced beam because

a) the size of the section is small

b) the depth of the section is small

c) compressive steel is under-stressed

d) concrete is not stressed to its full value

28 / 30

28. As per IS: 456, the column is considered as a short column if its slenderness ratio is more than

a) 10

b) 15

c) 18

d) 24

29 / 30

29. 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

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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