243) When the rail ends rest on a joint sleeper, the joint is termed as

244) Which of the following types of sleepers is preferred on joints

245) Minimum depth of ballast cushion for a Broad Gauge wooden sleeper of size 275x25x13 cm with 75 cm sleeper spacing is

246) Sleeper density in India is normally kept as [where M is the rail length in meters.]

247) For a Broad Gauge route with M+7 sleeper density, number of sleepers per rail length is