Quiz about Design of Reinforces Concrete Structures

Question 1

An R.C.C. beam of 6 m span is 30 cm wide and has a lever arm of 55 cm. If it carries a U.D.L. of 12 t per m and allowable shear stress is 5 kg/cm2, the beam

Accepted Answer

Is safe with stirrups

Answer

Is safe in shear

Answer

Is safe with stirrups and inclined bars

Answer

Needs revision of section

Question 2

According to I.S. : 456, slabs which span in two directions with corners held down, are assumed to be divided in each direction into middle strips and edge strips such that the width of the middle strip, is

Accepted Answer

Three-fourth of the width of the slab

Answer

Half of the width of the slab

Answer

Two-third of the width of the slab

Answer

Four-fifth of the width of the slab

Question 3

The load stress of a section can be reduced by

Accepted Answer

Replacing larger bars by greater number of small bars

Answer

Decreasing the lever arm

Answer

Increasing the total perimeter of bars

Answer

Replacing smaller bars by greater number of greater bars

Question 4

The diameter of the column head support a flat slab, is generally kept

Accepted Answer

0.25 times the diameter of the column

Answer

0.25 times the span length

Answer

4.0 cm larger than the diameter of the column

Answer

5.0 cm larger than the diameter of the column

Question 5

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

Accepted Answer

None of these

Answer

3WR²/16

Answer

2WR²/16

Answer

WR²/16

Question 6

The maximum ratio of span to depth of a slab simply supported and

Accepted Answer

20

Answer

35

Answer

25

Answer

30

Question 7

Pick up the correct statement from the following

Accepted Answer

All the above

Answer

Lateral reinforcement in R.C.C. columns is provided to prevent the longitudinal reinforcement from buckling

Answer

Lateral reinforcement prevents the shearing of concrete on diagonal plane

Answer

Lateral reinforcement stops breaking away of concrete cover, due to buckling

Question 8

In case the factor of safety against sliding is less than 1.5, a portion of slab is constructed downwards at the end of the heel slab, which is known as

Accepted Answer

A cut-off wall

Answer

A key

Answer

A rib

Answer

All the above

Question 9

Lapped splices in tensile reinforcement are generally not used for bars of
size larger than

Accepted Answer

36 mmdiameter

Answer

18 mmdiameter

Answer

24 mmdiameter

Answer

30 mmdiameter

Question 10

Minimum spacing between horizontal parallel reinforcement of the same
size should not be less than

Accepted Answer

Onediameter

Answer

2.5 diameters

Answer

3 diameters

Answer

3.5 diameters

Practice Test On: Design of Reinforces Concrete Structures

Practice Test On:
Design of Reinforces Concrete Structures