## 1. A reinforced concrete cantilever beam is 3.6 m long, 25 cm wide and has its lever arm 40 cm. It carries a load of 1200 kg at its free end and vertical stirrups can carry 1800 kg. Assuming concrete to carry one-third of the diagonal tension and ignoring the weight of the beam, the number of shear stirrups required, is

## 2. In a slab, the pitch of the main reinforcement should not exceed its effective depth

## 3. If ‘A’ is the sectional area of a pre-stressed rectangular beam provided with a tendon pre-stressed by a force ‘P’ through its centroidal longitudinal axis, the compressive stress in concrete, is

## 4. The breadth of a ribbed slab containing two bars must be between

## 5. The stresses developed in concrete and steel in reinforced concrete beam 25 cm width and 70 cm effective depth, are 62.5 kg/cm^{2} and 250 kg/cm^{2} respectively. If m = 15, the depth of its neutral axis is

^{2}and 250 kg/cm

^{2}respectively. If m = 15, the depth of its neutral axis is

## 6. If the modular ratio is ‘m’, steel ratio is ‘r’ and overall depth of a beam is ‘d’, the depth of the critical neutral axis of the beam, is

## 7. In a beam the local bond stress S_{b}, is equal to

_{b}, is equal to

## 8. The angle of internal friction of soil mass is the angle whose

## 9. Though the effective depth of a T-beam is the distance between the top compression edge to the centre of the tensile reinforcement, for heavy loads, it is taken as

## 10. In a singly reinforced beam, if the permissible stress in concrete reaches earlier than that in steel, the beam section is called

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