Structural Design Online Test - Paper 3

Created by

Vikash chaudhary

This is a FREE online test. Beware of scammers who ask for money to attend this test.

Get fresh, new questions in each attempt.

Total Questions: 50
Time Allotted: 50 minutes
Passing Score: 70%
Randomization: Yes
Certificate: Yes
Do not refresh the page!
👍 All the best!

1 / 50

1. A diagonal crack is introduced in a beam due to

a) bending moment (BM)

b) shear force (SF)

c) bending moment & shear force (BM & SF)

d) none of the above

2 / 50

2. Factor of safety is given by

a) ultimate load /working load

b) working load / ultimate load

c) (w+u)load

d) (u-w)load

3 / 50

3. 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

4 / 50

4. The minimum cover to the ties or spiral should not be less than

a) 8 mm

b) 10 mm

c) 12 mm

d) 25 mm

5 / 50

5. 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

6 / 50

6. 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

7 / 50

7. Addition of sugar in concrete results in

a) increase in setting time by about 1 hr

b) increase in setting time by about 4 hr

c) decrease in setting time by about 1 hr

d) decrease in setting time by about 4 hr

8 / 50

8. The approximate ratio of the direct tensile strength to direct compressive strength test

a) 0.33

b) 0.25

c) 0.10

d) 0.05

9 / 50

9. If the thickness of the slab is 100 mm then the maximum diameter of the bar placed in the slab should be

a) 8 mm

b) 10 mm

c) 12 mm

d) 16 mm

10 / 50

10. 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

11 / 50

11. 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

12 / 50

12. Which of the following statements is correct? As the area of steel increases

a) the depth of the neutral axis decreases

b) the depth of the neutral axis increases

c) the lever arm increases

d) none of the above

13 / 50

13. A simply supported 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

14 / 50

14. In a rectangular R.C.C beam, the ratio of the maximum shear stress to average shear stress is

a) 1.25

b) 1.33

c) 1.43

d) 1.53

15 / 50

15. The amount of reinforcement for main bars in a slab is based on

a) minimum shear force

b) maximum shear force

c) minimum bending moment

d) maximum bending moment

16 / 50

16. The entrapped air in concrete

a) increases workability

b) decreases workability

c) increases strength

d) none of the above

17 / 50

17. 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

18 / 50

18. The maximum ratio of span to depth ratio of a slab simply supported and spanning in two directions is

a) 25

b) 30

c) 35

d) 40

19 / 50

19. 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

20 / 50

20. 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%

21 / 50

21. In a singly reinforced beam, if the concrete is stressed to its allowable limit earlier than steel, the section is said to be

a) over-reinforced section

b) under-reinforced section

c) balanced section

d) economical section

22 / 50

22. 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

23 / 50

23. 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

24 / 50

24. Modulus of elasticity for concrete improves by

a) age

b) higher w/c ratio

c) shorter curing period

d) all of the above

25 / 50

25. The strength of concrete increases with an increase in

a) water cement ratio

b) size of aggregate

c) aggregate cement ratio

d) moisture content

26 / 50

26. Buckling occurs in a column

a) great

b) short

c) too great

d) none of the above

27 / 50

27. Main reinforcement in an RCC beam is used for

a) bending moment

b) shear force

c) moment of resistance

d) none of the above

28 / 50

28. In a two-way slab, the lifting of corners occurs due to

a) zero moment at the center

b) torsional moments on the slab

c) unbalanced moments on the slab

d) none of the above

29 / 50

29. 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

30 / 50

30. The maximum bulking factor for sand is

a) 1.00

b) 1.10

c) 1.20

d) 1.40

31 / 50

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

a) 7

b) 14

c) 21

d) 28

32 / 50

32. Spacing of longitudinal bars measured along the periphery of the column should not be more than (as per IS: 456-2000)

a) 20 cm

b) 25 cm

c) 30 cm

d) 15 cm

33 / 50

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

a) same

b) lower

c) higher

d) constant

34 / 50

34. 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

35 / 50

35. 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

36 / 50

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

a) load

b) temperature stress

c) shrinkage stress

d) all of the above

37 / 50

37. In a doubly reinforced beam, the maximum shear stress occurs

a) along the centroid

b) along the natural axis

c) on planes between the neutral axis and the tensile reinforcement

d) on planes between the neutral axis and the compressive reinforcement

38 / 50

38. The approximate ratio of the direct tensile strength to flexural strength is

a) 0.25

b) 0.33

c) 0.5

d) 0.90

39 / 50

39. If A is the fineness modulus of coarse aggregate, B of combined aggregates, and C of fine aggregates, then P the proportion of fine to combined aggregates, is given by

a) P = (A-B/B-C)x100

b) P = (A-B/C-B)x100

c) P = (C-B/A-B)x100

d) P = (B-C/A-B)x100

40 / 50

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

a) 200 mm

b) 300 mm

c) 400 mm

d) 500 mm

41 / 50

41. The load-carrying capacity of helically reinforced column compared to a tied column is

a) 5% less

b) 5% more

c) 10% less

d) 10% more

42 / 50

42. Shear reinforcement in an RCC beam is used for

a) bending moment

b) shear force

c) moment of resistance

d) none of the above

43 / 50

43. 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

44 / 50

44. 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

45 / 50

45. 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

46 / 50

46. Laps in bars are equal to

a) bond length

b) twice bond length

c) 1.5 to twice bond length

d) none of the above

47 / 50

47. 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

48 / 50

48. 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

49 / 50

49. 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

50 / 50

50. 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

Please provide accurate information so we can send your Achievement Certificate by mail.

NameEmailPhone Number

Your score is

Please provide your feedback.

Thank you for your valuable feedback.

Buy Structural Design MCQ PDF for Offline Study

Structural Design Online Test – Paper 3

Please provide accurate information so we can send your Achievement Certificate by mail.

Related MCQs