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 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

2 / 30

2. Weight of steel per cubic meter (m³)

a) 1000 kg

b) 2000 kg

c) 7850 kg

d) 8850 kg

3 / 30

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

a) 4

b) 6

c) 8

d) 12

4 / 30

4. The unit weight of RCC is taken as

a) 2.2 t/m³

b) 2.3 t/m³

c) 2.4 t/m³

d) 2.5 t/m³

5 / 30

5. High increase in temperature......the strength of concrete.

a) increases

b) has no effect

c) decreases

d) none of the above

6 / 30

6. 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

7 / 30

7. 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

8 / 30

8. The radius of bar bend to form a hook should not be less than

a) twice the diameter

b) thrice the diameter

c) four times the diameter

d) five times the diameter

9 / 30

9. 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

10 / 30

10. The transverse shear reinforcement in RCC beams can be provided as

a) ties

b) closed loops only

c) open or closed loops

d) helical loops

11 / 30

11. 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

12 / 30

12. 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

13 / 30

13. 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

14 / 30

14. A doubly reinforced beam is used

a) when extra safety factor is required

b) when the depth and width of the beam are restricted

c) when the depth of the beam is more than the width

d) a large moment of resistance is desired

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. Poisson's ratio for concrete

a) increases with a richer mix

b) decreases with a richer mix

c) remains constant

d) increases with a poor mix

17 / 30

17. 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

18 / 30

18. For a continuous slab of 3m x 3.5m size, the minimum overall depth of the slab to satisfy vertical deflection limit is

a) 5cm

b) 7.5cm

c) 9cm

d) 12cm

19 / 30

19. 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

20 / 30

20. After casting, an ordinary cement concrete on drying

a) shrinks

b) expands

c) remains unchanged

d) can expand or shrink

21 / 30

21. Placing of concrete should preferably be done at a temperature of

a) 10°C

b) 20°C

c) 27±2°C

d) 32°C

22 / 30

22. 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

23 / 30

23. Factor of safety is given by

a) ultimate load /working load

b) working load / ultimate load

c) (w+u)load

d) (u-w)load

24 / 30

24. A column fails by buckling is called a long column while failure by crushing is called

a) big column

b) long column

c) small column

d) short column

25 / 30

25. 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

26 / 30

26. 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

27 / 30

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

a) 360 mm²

b) 460 mm²

c) 560 mm²

d) 600 mm²

28 / 30

28. The minimum lap length at the splice of compression reinforcement in RCC

a) 24 times the diameter of the bar or lap length

b) 30 times the diameter of the bar or lap length

c) 48 times the diameter of the bar or lap length

d) 30 times the diameter of the bar or twice the development length

29 / 30

29. 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

30 / 30

30. For a two-way slab, the main reinforcement is provided along the

a) length of the slab

b) breadth of the slab

c) diagonal of the slab

d) none of the above

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Structural Design Online Test – Paper 2

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