1. The pitch of transverse reinforcement should not be more than the ?

least lateral dimension of the column

sixteen times the diameter of the longitudinal reinforcing bar nearest to the compression face of the member

forty-eight times the diameter of the transverse reinforcement

minimum value of (a), (b) and (c)

Answer: minimum value of (a), (b) and (c)

Explanation:


2. The shrinkage in a concrete slab ?

causes shear cracks

causes tension cracks

causes compression cracks

does not cause any cracking

Answer: causes tension cracks

Explanation:


3. A twisted bar has about ............ more yield stress than ordinary mild steel bar ?

10%

20%

35%

50%

Answer: 50%

Explanation:


4. In the design of a two-way slab restrained at all edges, torsional reinforcement required is ?

0.375 times the area of steel provided in the shorter span

0.375 times the area of steel provided at mid-span in the same direction

0.75 times the area of steel provided at mid-span in the same direction

none of the above

Answer: none of the above

Explanation:


5. A combined footing may be ?

trapezoidal

square

circle

either (a) or (b)

Answer: either (a) or (b)

Explanation:


6. In a reinforced concrete retaining wall, a shear key is provided, if the ?

shear stress in the vertical stream is excessive

shear force in the toe slab is more than that in the heel

retaining wall is not safe against sliding

retaining wall is not safe against over turning

Answer: retaining wall is not safe against sliding

Explanation:


7. For reinforced piles having length upto 30 times its width, the main longitudinal reinforcement should not be less than ............... of the gross cross-sectional area of the pile ?

1.25%

1.5%

2%

2.5%

Answer: 1.25%

Explanation:


8. The factor of safety due to sliding of the retaining wall is generally taken as ?

1

1.5

2

4

Answer: 1.5

Explanation:


9. In a footing, it is used to assume that the maximum value of transverse bending will occur at a distance, equal to (measured from the face of the column) ?

half of effective depth

effective depth

twice the effective depth

breadth of column on each side

Answer: effective depth

Explanation:


10. The torsion resisting capacity of a given reinforced concrete section ?

decreases with decrease in stirrup spacing

decreases with increase in longitudinal bars

does not depend upon stirrup and longitudinal steels

increases with increase in stirrup and longitudinal steels

Answer: increases with increase in stirrup and longitudinal steels

Explanation: