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. A rib slab is provided for

a) plain ceiling

b) acoustic insulation

c) heat insulation

d) all of the above

2 / 30

2. Main reinforcement in an RCC beam is used for

a) bending moment

b) shear force

c) moment of resistance

d) none of the above

3 / 30

3. In cold weather, concrete curing should be continued for... days

a) 7

b) 14

c) 21

d) 28

4 / 30

4. The ultimate bending compressive strain in RCC is

a) 0.003

b) 0.0035

c) 0.0003

d) none of the above

5 / 30

5. 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

6 / 30

6. The amount of reinforcement for main bars in a slab is based upon

a) minimum bending moment

b) maximum bending moment

c) minimum shear stress

d) maximum shear force

7 / 30

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

a) 10%

b) 15%

c) 20%

d) 25%

8 / 30

8. The factor of safety for steel as compared to concrete is

a) same

b) lower

c) higher

d) constant

9 / 30

9. In the case of the foundation of rigid base, the distribution pressure on the soil is

a) uniform

b) maximum bending moment

c) minimum in the central zone

d) none of the above

10 / 30

10. If the slenderness ratio for a column is 100 then the column is said to be

a) long

b) medium

c) short

d) none of the above

11 / 30

11. Which of the following factors influence the strength of concrete?

a) compaction

b) curing

c) water-cement ratio

d) all of the above

12 / 30

12. 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

13 / 30

13. The neutral axis of a T-beam exists

a) within the flange

b) at the bottom edge of the slab

c) below the slab

d) all of the above

14 / 30

14. If a beam fails in bond, then

a) increase the depth of the beam

b) use thicker but fewer numbers of bars

c) use thinner but more numbers of bars

d) providing vertical stirrups

15 / 30

15. The slope of weep hole is generally provided at (spacing- 1.5 to 3.0m)

a) 1 in 4

b) 1 in 8

c) 1 in 16

d) 1 in 32

16 / 30

16. 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

17 / 30

17. If A is the fineness modulus of coarse aggregate, B of combined aggregates, and C of fine aggregates, then P the proportion of fine to combined aggregates, is given by

a) P = (A-B/B-C)x100

b) P = (A-B/C-B)x100

c) P = (C-B/A-B)x100

d) P = (B-C/A-B)x100

18 / 30

18. The maximum bulking of sand generally occurs at a percentage moisture content of

a) 5

b) 8

c) 11

d) 4

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. Shear in a concrete beam is caused by

a) props only

b) variation of B.M along the span

c) weak bond

d) none of the above

21 / 30

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

a) 28

b) 12

c) 20

d) 24

22 / 30

22. The minimum amount of steel required in RCC column (230x350) is

a) 360 mm²

b) 460 mm²

c) 560 mm²

d) 600 mm²

23 / 30

23. The resistance offered to slipping of steel bars in concrete is due to

a) adhesion

b) frictional resistance

c) mechanical resistance

d) all of the above

24 / 30

24. The maximum strain in the tension reinforcement in the section of a flexural member at failure shall not be less than (if fy is the characteristic strength of steel and Es is the modulus of elasticity of steel)

a) 0.0020

b) fy/(1.15Es) + 0.002

c) fy/(1.15Es) + 0.003

d) 0.0300

25 / 30

25. The maximum spacing between longitudinal bars in a column is

a) 200 mm

b) 300 mm

c) 400 mm

d) 500 mm

26 / 30

26. In a singly reinforced beam, if the concrete is stressed to its allowable limit earlier than steel, the section is said to be

a) over-reinforced section

b) under-reinforced section

c) balanced section

d) economical section

27 / 30

27. For a cantilever beam, the span to effective depth ratio is generally restricted to

a) 7

b) 10

c) 15

d) 20

28 / 30

28. When the material is loaded with tensile force at both ends, then the test is known as

a) tensile test

b) compressive test

c) shear test

d) all of the above

29 / 30

29. Generally, the compressive strength of the cover block is more than the compressive strength of the concrete. The main function of the cover block is

a) maintain cover on the side of steel

b) maintain cover below steel

c) maintain cover above steel

d) maintain cover between steel and formwork

30 / 30

30. For an RCC section, select the most true statement from the following

a) Bond stress = Bond Load/X-area of rebar

b) In a doubly reinforced section, rebars are placed at two tiers on the tensile face

c) Shear stress (π) is perpendicular to the material cross-section

d) Shear stress in rebar is calculated as (π) = Shear force/Nominal surface area of rebar

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Structural Design Online Test – Paper 2

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