151. If the standard length of a B.G. crossing is 597 cm, the number of crossing, is
152. Rails are fixed on steel sleepers
153. If a is average number of peaks more than 10 mm of uneveness per kilometre, b is average number peaks more than 6 mm for gauge variation per kilometre and c is average number of peaks more than 2 mm twist per metre, then composite current recording index (Ic), as recommended by Indian Northern Railways, is
154. The standard width of ballast for M.G. track in Indian Railways, is kept
155. To prevent creep in rails, the steel sleepers are fixed with rails by clips, bolts and
156. The standard dimensions of a wooden sleeper for a B.G. railway track are
157. In Indian railways, the ratio of axle load and weight of rail, is
158. If D is the distance between parallel tracks G is the gauge and α is angle of crossings, the distance between theoretical noses of two crossings measured parallel to tracks, is
159. Minimum composite sleeper index for wooden sleepers used over bridge girders, is
160. In a diamond crossing, number of noses are
161. If the stock rails are B.H. rails, the type of switch generally provided, is
162. Bending of rail ends due to loose packing under a joint and loose fish Bolts, is known
163. On Broad Gauge main lines with maximum traffic loads, the rail section preferred to, is
164. If D is the distance between the parallel sidings and α is the angle of crossing, the distance between the noses of crossing measured parallel to the main track, is
165. On B.G. tracks the distance of outer signal from station limit is kept
166. The rails get out of their original positions due to insufficient expansion gap. This phenomenon is known
167. Mr. W. Simms, the consulting Engineer to the Government of India recommended the gauge for Indian railways
168. If absolute levels of rails at the consecutive axles A, B, and C separated by 1.8 metres are 100.505 m, 100.530 m, and 100.525 m respectively, the unevenness of rails, is
169. A CST-9 sleeper consists of
170. Charles Vignoles invented the flat footed rails in
171. To design a cross-over between parallel tracks, the required components are :