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. After casting, an ordinary cement concrete on drying

a) shrinks

b) expands

c) remains unchanged

d) can expand or shrink

2 / 30

2. 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%

3 / 30

3. The main reason for placing the main bar at the top in the case of a cantilever slab is

a) load at the top

b) tension at the top

c) all of the above

d) compression at the top

4 / 30

4. Dimensions of a beam need to be changed if the shear stress is more than

a) 10 kg/cm²

b) 15 kg/cm²

c) 20 kg/cm²

d) 25 kg/cm²

5 / 30

5. An air entraining agent when added in concrete improves

a) strength

b) workability

c) density

d) durability

6 / 30

6. For a cantilever of effective depth of 50cm, the maximum span to satisfy vertical deflection limit is

a) 3.0m

b) 3.5m

c) 4.0m

d) 4.5m

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. Fineness modulus of fine aggregate is between

a) 2-3.5

b) 3.5-5.0

c) 5-6.0

d) 6-7.0

9 / 30

9. The size of fine aggregates does not exceed

a) 2.75 mm

b) 3.75 mm

c) 4.75 mm

d) 5.75 mm

10 / 30

10. 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

11 / 30

11. Strength of concrete increases with

a) increase in water cement ratio

b) decrease in water cement ratio

c) decrease in size of aggregate

d) decrease in curing time

12 / 30

12. The compressive strength of concrete determined from a 150mm × 150mm cylinder as compared to that determined from a 150mm cube is

a) more

b) less

c) equal

d) none of the above

13 / 30

13. 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

14 / 30

14. A rigid frame is a structure composed of members which are connected by

a) a single rivet

b) rigid joints

c) simple bearing

d) none of the above

15 / 30

15. 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

16 / 30

16. The property of fresh concrete, in which while placing and compaction is known as

a) bleeding

b) creep

c) segregation

d) shrinkage

17 / 30

17. High increase in temperature......the strength of concrete.

a) increases

b) has no effect

c) decreases

d) none of the above

18 / 30

18. In the case of the foundation of rigid base, the distribution pressure on the soil is

a) uniform

b) maximum bending moment

c) minimum in the central zone

d) none of the above

19 / 30

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

a) bleeding

b) creep

c) segregation

d) shrinkage

20 / 30

20. 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

21 / 30

21. 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

22 / 30

22. In a T beam overall depth of rib (in case of heavy load) is

a) 1/20 of the span

b) 1/15 of the span

c) 1/12 of the span

d) none of the above

23 / 30

23. If a beam is loaded transversely the maximum compressive stress develops on

a) top fibre

b) neutral axis

c) bottom fibre

d) every cross-section

24 / 30

24. 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

25 / 30

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

a) 28

b) 12

c) 20

d) 24

26 / 30

26. 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

27 / 30

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

a) 0.25

b) 0.33

c) 0.5

d) 0.90

28 / 30

28. 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

29 / 30

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

a) 7

b) 14

c) 21

d) 28

30 / 30

30. For an RCC section, select the most true statement from the following

a) Bond stress = Bond Load/X-area of rebar

b) In a doubly reinforced section, rebars are placed at two tiers on the tensile face

c) Shear stress (π) is perpendicular to the material cross-section

d) Shear stress in rebar is calculated as (π) = Shear force/Nominal surface area of rebar

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Structural Design Online Test – Paper 2

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