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 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

2 / 30

2. In an over-reinforced concrete section, the failure starts at

a) compression face

b) tension face

c) neutral axis

d) diagonals

3 / 30

3. The effective width of a column strip of a flat slab is

a) one-fourth the width of the panel

b) half the width of the panel

c) radius of the column

d) diameter of the column

4 / 30

4. 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

5 / 30

5. Strength of concrete increases with

a) increase in water cement ratio

b) increase in fineness of cement

c) decrease in size of aggregate

d) decrease in curing time

6 / 30

6. 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

7 / 30

7. 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

8 / 30

8. The minimum cover at the end of reinforcement should be

a) 20 Φ

b) 25 mm

c) mini. of (a) and (b) above

d) max. of (a) and (b) above

9 / 30

9. 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

10 / 30

10. As per IS: 456, the column is considered as a short column if its slenderness ratio is more than

a) 10

b) 15

c) 18

d) 24

11 / 30

11. A continuous beam shall be deemed to be a deep beam if the ratio of effective span to overall depth is

a) 2

b) 2.5

c) 3

d) 3.5

12 / 30

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

a) 20%

b) 30%

c) 40%

d) 60%

13 / 30

13. 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

14 / 30

14. 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

15 / 30

15. The maximum diameter of bars in a beam is limited to

a) 25mm

b) 40mm

c) one-eighth of the least dimension of the beams

d) one-tenth of the depth

16 / 30

16. Workability of concrete is inversely proportional to

a) water-cement ratio

b) size of aggregate

c) time of transit

d) none of the above

17 / 30

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

a) load

b) temperature stress

c) shrinkage stress

d) all of the above

18 / 30

18. A doubly reinforced beam is economical as compared to a singly reinforced beam because

a) the size of the section is small

b) the depth of the section is small

c) compressive steel is under-stressed

d) concrete is not stressed to its full value

19 / 30

19. Minimum spacing between horizontal parallel reinforcements of the same size should not be less than

a) one diameter

b) two diameters

c) three diameters

d) four diameters

20 / 30

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

a) 40

b) 20

c) 24

d) 28

21 / 30

21. 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

22 / 30

22. The durability of concrete is proportional to

a) sand content

b) water cement ratio

c) aggregate ratio

d) cement aggregate ratio

23 / 30

23. In the analysis of a doubly reinforced beam, the assumption made is

a) tension is resisted by concrete only

b) compression is resisted by concrete only

c) the deformations in concrete and steel on both sides remain proportional to their distance from the neutral axis

d) all of the above

24 / 30

24. The amount of reinforcement for main bars in a slab is based upon

a) maximum bending moment

b) minimum shear force

c) maximum shear force

d) minimum bending moment

25 / 30

25. The lower water-cement ratio in concrete products

a) more density

b) small creep and shrinkage

c) more bond

d) all of the above

26 / 30

26. 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

27 / 30

27. 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

28 / 30

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

a) screen

b) needle

c) none

d) surface

29 / 30

29. 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

30 / 30

30. A slender column is a

a) short column

b) long column

c) mix

d) column of varying cross-section

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Structural Design Online Test – Paper 2

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