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. 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

2 / 30

2. The center-to-center spacing of vertical stirrups in a rectangular beam is

a) minimum near the support

b) maximum near the support

c) minimum near the center

d) none of the above

3 / 30

3. 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

4 / 30

4. The ratio of ultimate strength to working stress is

a) distribution factor

b) load factor

c) safety factor

d) shape factor

5 / 30

5. 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

6 / 30

6. Presence of oils in water for concreting

a) improves strength

b) gives more slump

c) reduces workability

d) reduces strength

7 / 30

7. The strength and quality of concrete depends on

a) aggregate shape

b) aggregate grading

c) surface area of the aggregate

d) all of the above

8 / 30

8. Spacing of stirrups in a rectangular beam is

a) kept constant throughout the length

b) increased towards the center of the beam

c) increased at the ends

d) increased at the center of the beam

9 / 30

9. Shear reinforcement in an RCC beam is used for

a) bending moment

b) shear force

c) moment of resistance

d) none of the above

10 / 30

10. 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

11 / 30

11. A T-beam behaves like a rectangular beam of width equal to its flange if its neutral axis

a) remains within the flange

b) remains within the web

c) coincides with the geometrical center of the beam

d) none of the above

12 / 30

12. 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

13 / 30

13. An RCC roof slab is designed as a two-way slab if

a) it supports live load in both directions

b) the ratio of spans in both directions is less than two

c) the slab is continuous over two supports

d) the slab is discontinuous at edges

14 / 30

14. Distribution reinforcement in a simply supported slab is provided to distribute

a) load

b) temperature stress

c) shrinkage stress

d) all of the above

15 / 30

15. 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

16 / 30

16. 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

17 / 30

17. 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

18 / 30

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

a) 30 θ

b) 40 θ

c) 50 θ

d) 60 θ

19 / 30

19. Weep holes are provided in retaining and breast walls to

a) increase compaction

b) increase architectural beauty

c) drain off the water from the fillings

d) none of the above

20 / 30

20. 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

21 / 30

21. 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

22 / 30

22. 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

23 / 30

23. The ultimate bending compressive strain in RCC is

a) 0.003

b) 0.0035

c) 0.0003

d) none of the above

24 / 30

24. The thickened part of a flat slab over its supporting column is technically known as

a) capital

b) drop panel

c) column head

d) none of the above

25 / 30

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

a) 7

b) 14

c) 21

d) 28

26 / 30

26. 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

27 / 30

27. Steel beam theory is used for

a) design of a simple steel beam

b) steel beam encased in concrete

c) a beam if shear exceeds 4 times allowable shear stress

d) doubly reinforced beams ignoring compressive stress in concrete

28 / 30

28. White cement is produced in

a) flyash kiln

b) coal kiln

c) oil-fired kiln

d) electrical form kiln

29 / 30

29. The slenderness ratio of an RCC column is given by (Where, r=radius of gyration, l=effective length, B=width, D=diameter)

a) l/r

b) l/B

c) l/D

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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