305) For laying the railway track, materials required are (The quantities required for one kilometer of Broad Gauge track will be)

306) Metal sleepers are superior to wooden sleepers with respect to

307) Which one of the following rail failures is caused by loose fish bolts at expansion joints?

308) For a 8° curve track diverging from a main curve of 5° in an opposite direction in the layout of a broad gauge yard, the cant to be provided for the branch track for maximum speed of 45 km/h on the main line and ′G′ = 1.676 m is (Permitted cant deficiency for the main line = 7.6 cm)

309) Consider the following statements: Automatic signalling system results in 1.greater risk 2.higher efficiency 3.avoidance of block instruments 4.higher operating cost Of these statements