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 size of fine aggregates does not exceed

a) 2.75 mm

b) 3.75 mm

c) 4.75 mm

d) 5.75 mm

2 / 30

2. 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

3 / 30

3. 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

4 / 30

4. Separation of ingredients from concrete during transportation is known as

a) bleeding

b) creep

c) segregation

d) shrinkage

5 / 30

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

a) load

b) temperature stress

c) shrinkage stress

d) all of the above

6 / 30

6. 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

7 / 30

7. According to the load factor method, the permissible load W on a short column reinforced with longitudinal bars and lateral stirrups is

a) stress in concrete × area of concrete

b) stress in steel × area of steel

c) stress in concrete × area of concrete + stress in steel × area of steel

d) none 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. As the size of the cube increases, the strength of the cube

a) decreases

b) increases

c) increases but decreasing rate

d) decreases but decreasing rate

10 / 30

10. The one-way slab is one

a) which is short and bends in two directions

b) the slab which bends only along one direction

c) reinforced in one direction only

d) all of the above

11 / 30

11. 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

12 / 30

12. In a column, the pitch of the ties shall be

a) least lateral dimension of the column

b) 16 x θ of the smallest longitudinal bar

c) 48 x θ of the transverse reinforcement

d) least of the above

13 / 30

13. 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

14 / 30

14. According to the steel beam theory of doubly reinforced beams

a) tension is resisted by tension steel

b) compression is resisted by compression steel

c) stress in tension steel equals the stress in compression steel

d) all of the above

15 / 30

15. The minimum diameter of bars for a slab is generally

a) 6 mm

b) 8 mm

c) 10 mm

d) 12 mm

16 / 30

16. The entrapped air in concrete

a) increases workability

b) decreases workability

c) increases strength

d) none of the above

17 / 30

17. Large size aggregate is better in yield high strength but in no case greater than

a) 2/3 of the minimum thickness of the member

b) 1/3 of the minimum thickness of the member

c) 3/4 of the minimum thickness of the member

d) 1/4 of the minimum thickness of the member

18 / 30

18. The durability of concrete is proportional to

a) sand content

b) water cement ratio

c) aggregate ratio

d) cement aggregate ratio

19 / 30

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

a) same

b) lower

c) higher

d) constant

20 / 30

20. A beam curved in plan is designed for

a) bending moment and shear

b) bending moment and torsion

c) shear and torsion

d) bending moment, shear, and torsion

21 / 30

21. The anchorage value of a standard bend is

a) 4θ

b) 8θ

c) 12θ

d) 16θ

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. In a singly reinforced beam, the effective cover is measured from

a) centroid of steel

b) inner face of outer steel

c) all of the above

d) outer face of outer steel

24 / 30

24. The quantity of coarse aggregate required in 100 m³ of concrete having mix 1:2:4

a) 74 m³

b) 79 m³

c) 87 m³

d) 92 m³

25 / 30

25. Fineness modulus of fine aggregate is between

a) 2-3.5

b) 3.5-5.0

c) 5-6.0

d) 6-7.0

26 / 30

26. 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

27 / 30

27. The strength of concrete is directly proportional to

a) cement water ratio

b) water cement ratio

c) sand cement ratio

d) water aggregate ratio

28 / 30

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

a) 10°C

b) 20°C

c) 27±2°C

d) 32°C

29 / 30

29. 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

30 / 30

30. Shrinkage in concrete increases its

a) tensile strength

b) flexural strength

c) bond strength

d) shear strength

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Structural Design Online Test – Paper 2

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