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. The minimum straight lap length in tension bars with hooks in an RCC beam is

a) 15 times the diameter of the bar or 200mm

b) 12 times the diameter of the bar or 400mm

c) 20 times the diameter of the bar or 400mm

d) none of the above

2 / 30

2. In a singly reinforced beam

a) compression is borne entirely by concrete

b) steel possesses initial stresses when embedded in concrete

c) plane sections transverse to the center line of the beam before bending remain plane sections after bending

d) elastic modulii for concrete and steel have different values within the limits of deformation of the beam

3 / 30

3. Which type of vibrator is generally used in concrete work

a) screen

b) needle

c) none

d) surface

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. In R.C.C. beams, the tension reinforcement can be cut off at a point when it is no longer needed if

a) enough bond length is available

b) shear at the cut-off point does not exceed two-thirds of permissible at that section

c) bending moment is zero

d) none of the above

6 / 30

6. 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

7 / 30

7. 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

8 / 30

8. Distribution of shear intensity over a rectangular section of a beam follows

a) a circular curve

b) a straight line

c) a parabolic curve

d) an elliptical curve

9 / 30

9. Shear stress is not taken by

a) horizontal steel

b) vertical steel

c) inclined steel

d) none of the above

10 / 30

10. An air entraining agent when added in concrete improves

a) strength

b) workability

c) density

d) durability

11 / 30

11. White cement is produced in

a) flyash kiln

b) coal kiln

c) oil-fired kiln

d) electrical form kiln

12 / 30

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

a) 200 mm

b) 300 mm

c) 400 mm

d) 500 mm

13 / 30

13. 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

14 / 30

14. Concrete gains strength due to

a) chemical action of cement with coarse aggregate

b) hydration of cement

c) evaporation of water

d) all of the above

15 / 30

15. In a two-way slab, the torsion steel is provided at the

a) top

b) bottom

c) both (a) and (b) of the above

d) none of the above

16 / 30

16. The slab built integrally with the supporting columns without any beams is

a) flat slab

b) one-way slab

c) two-way slab

d) continuous slab

17 / 30

17. Shear stress diagram of a homogeneous beam is

a) rectangular

b) triangular

c) parabolic

d) elliptical

18 / 30

18. The moment of resistance of an under-reinforced section is computed on the basis of

a) compressive force developed in concrete

b) tensile force developed in steel

c) both of the above

d) none of the above

19 / 30

19. 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

20 / 30

20. 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

21 / 30

21. In an RCC beam, N.A means

a) not applicable

b) neutral axis

c) natural axis

d) normal axis

22 / 30

22. The effective span of a simply supported slab is

a) clear span plus the effective depth of the slab

b) span between outer faces of two walls

c) distance between the center of bearing

d) none of the above

23 / 30

23. In a singly reinforced beam (concrete), as the load increases

a) only concrete will resist tension

b) only steel bars will resist tension

c) both concrete and steel will resist tension

d) both concrete and steel will resist compression

24 / 30

24. The maximum spacing of side-face reinforcement in a beam should be

a) 100 mm

b) 200 mm

c) 300 mm

d) 400 mm

25 / 30

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

a) 10°C

b) 20°C

c) 27±2°C

d) 32°C

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 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

28 / 30

28. 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

29 / 30

29. 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

30 / 30

30. 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%

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