127. To ensure that the hogging bending moment at two points of suspension of a pile of length L equals the sagging moment at its centre, the distances of the points of suspension from either end, is

A. 0.107 L

B. 0.207 L

C. 0.307 L

D. 0.407 L.

128. A pile of length L carrying a uniformly distributed load W per metre length is suspended at two points, the maximum, B.M. at the centre of the pile or at the points of suspension, is

A. hogging B.M. at the right penultimate support

B. hogging B.M. at the left penultimate support

C. hogging B.M. at the central support

D. sagging B.M. at the interior span

129. A pile of length L carrying a uniformly distributed load W per metre length is suspended at the centre and from other two points 0.15 L from either end ; the maximum hogging moment will be

A. hogging B.M. at the right penultimate support

B. hogging B.M. at the left penultimate support

C. hogging B.M. at the central support

D. sagging B.M. at the interior span

130. In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the con-sequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed

A. 10 mm

B. 15 mm

C. 20 mm

D. 25 mm

131. A raft foundation is provided if its area exceeds the plan area of the building by

A.10%

B.20%

C.30%

D. 50%.

132. The design of a retaining wall assumes that the retained earth

A. is dry

B. is free from moisture

C. is not cohesive

D. all the above.

133. The angle of repose of a soil is the maximum angle which the outer face of the soil mass makes

A. with the horizontal

B. with the vertical

C. with the perpendicular to the inclined plane of the soil

D. none of these.

Page **19** of **45**