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

a) same

b) lower

c) higher

d) constant

2 / 30

2. If the effective length of a 32 cm diameter column is 4.40 mts slenderness ratio is

a) 45

b) 50

c) 55

d) 60

3 / 30

3. 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

4 / 30

4. 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

5 / 30

5. Minimum spacing between horizontal parallel reinforcements of different sizes should not be less than

a) one times the thinner bar

b) two times the thinner bar

c) one times the thicker bar

d) two times the thicker bar

6 / 30

6. The minimum number of main bars in an octagonal column is

a) 4

b) 6

c) 8

d) 12

7 / 30

7. The maximum ratio of span to depth ratio of a slab simply supported and spanning in one direction is

a) 25

b) 30

c) 35

d) 40

8 / 30

8. 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

9 / 30

9. 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

10 / 30

10. 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

11 / 30

11. 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

12 / 30

12. 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

13 / 30

13. 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

14 / 30

14. The advantage of reinforced concrete is due to

a) monolithic character

b) economy because less maintenance cost

c) molding in any desired shape

d) all of the above

15 / 30

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

a) 20%

b) 30%

c) 40%

d) 60%

16 / 30

16. The minimum number of main bars in a circular column is

a) 4

b) 6

c) 8

d) 12

17 / 30

17. 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

18 / 30

18. The states of concrete are

a) elastic and hardened state

b) elastic and plastic state

c) plastic and hardened state

d) none of the above

19 / 30

19. 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

20 / 30

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

a) three times

b) four times

c) five times

d) six times

21 / 30

21. After casting, an ordinary cement concrete on drying

a) shrinks

b) expands

c) remains unchanged

d) can expand or shrink

22 / 30

22. The approximate ratio of the direct tensile strength to direct compressive strength test

a) 0.33

b) 0.25

c) 0.10

d) 0.05

23 / 30

23. The types of failure occurring in a beam due to shear force is termed as

a) diagonal tension failure

b) flexural tension failure

c) diagonal compression failure

d) all of the above

24 / 30

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

a) 40

b) 20

c) 24

d) 28

25 / 30

25. 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

26 / 30

26. In a beam, the spacing of shear reinforcement is kept... at the center as compared to the end

a) minimum

b) maximum

c) constant

d) none of the above

27 / 30

27. A rib slab is provided for

a) plain ceiling

b) acoustic insulation

c) heat insulation

d) all of the above

28 / 30

28. The minimum overall depth kept at the edge of R.C. footings is

a) 50 cm

b) 25 cm

c) 15 cm

d) 10 cm

29 / 30

29. 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

30 / 30

30. Surface vibrator is effective only when the thickness of concrete does not exceed

a) 5 cm

b) 70 cm

c) 15 cm

d) 20 cm

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Structural Design Online Test – Paper 2

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