## 31. The radius of a bar bend to form a hook, should not be less than

## 32. If T and R are tread and rise respectively of a stair, then

## 33. If A is the area of the foundation of a retaining wall carrying a load W and retaining earth of weight 'w' per unit volume, the minimum depth (h) of the foundation from the free surface of the earth, is

## 34. An intermediate T-beam reinforced with two layers of tensile steel with clear cover 13 cm encased with the floor of a hall 12 meters by 7 meters, is spaced at 3 meters from adjoining beams and if the width of the beam is 20 cm, the breadth of the flange is

## 35. A part of the slab may be considered as the flange of the T-beam if

## 36. If the maximum dip of a parabolic tendon carrying tension P is h and the effective length of the pre-stressed beam is L, the upward uniform pressure will be

## 37. Pick up the incorrect statement from the following: Tensile reinforcement bars of a rectangular beam

## 38. According to the steel beam theory of doubly reinforced beams

## 39. The width of the flange of a T-beam, which may be considered to act effectively with the rib depends upon

## 40. An R.C.C. lintel is spanning an opening of 2 m span in a brick wall. The height of the roof is 2.9 m above the floor level and that of the opening is 2.1 m above the floor level. The lintel is to be designed for self weight plus

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