RCC STRUCTURES DESIGN QUIZ

As per IS : 456, the reinforcement in a column should not be less than

0.6% and not more than 6% of cross-sectional area

0.8% and not more than 8% of cross-sectional area

0.5% and not more than 5% of cross-sectional area

0.7% and not more than 7% of cross-sectional area

TRUE ANSWER : ?
YOUR ANSWER : ?

A pre-stressed concrete member is preferred because

All listed here

Its dimensions are not decided from the diagonal tensile stress

Large size of long beams carrying large shear force need not be adopted

Removal of cracks in the members due to shrinkage

TRUE ANSWER : ?
YOUR ANSWER : ?

The thickness of the topping of a ribbed slab, varies between

8 cm to 10 cm

5 cm to 8 cm

3 cm to 5 cm

12 cm to 15 cm

TRUE ANSWER : ?
YOUR ANSWER : ?

If p₁ and p₂ are effective lateral loadings at the bottom and top exerted by a level earth subjected to a super-load on the vertical face of height h of a retaining wall, the horizontal pressure p per unit length of the wall, is

[(p₁ + p₂)/4] h

(p₁ - p₂) ⅔h

[(p₁ - p₂)/2] h

[(p₁ + p₂)/2] h

TRUE ANSWER : ?
YOUR ANSWER : ?

If ‘W’ is the uniformly distributed load on a circular slab of radius ‘R’ fixed at its ends, the maximum positive radial moment at its centre, is

3WR²/16

WR²/16

None of these

2WR²/16

TRUE ANSWER : ?
YOUR ANSWER : ?

The spacing of transverse reinforcement of column is decided by the following consideration.

The least lateral dimension of the column

Sixteen times the diameter of the smallest longitudinal reinforcing rods in the column

Forty-eight times the diameter of transverse reinforcement

All listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

On piles, the drop must be at least

80 cm

120 cm

123 cm

124 cm

TRUE ANSWER : ?
YOUR ANSWER : ?

If L is the effective span of a R.C.C. beam which is subjected to maximum shear qmax at the ends, the distance from either end over which stirrups for the shear, are provided, is

(L/2) (1 - 2/qmax)

(L/2) (1 - 3/qmax)

(L/3) (1 - 5/qmax)

(L/2) (1 - 5/qmax)

TRUE ANSWER : ?
YOUR ANSWER : ?

Steel beam theory is used for

Doubly reinforced beams ignoring compressive stress in concrete

Steel beams encased in concrete

Design of simple steel beams

Beams if shear exceeds 4 times allowable shear stress

TRUE ANSWER : ?
YOUR ANSWER : ?

Minimum spacing between horizontal parallel reinforcement of different sizes, should not be less than

One diameter of thinner bar

One diameter of thicker bar

None of these

Twice the diameter of thinner bar

TRUE ANSWER : ?
YOUR ANSWER : ?