For developing thinly populated areas, the correct choice of gauge is_________________?

A. flat mild steel bearing plate
B. mild steel canted bearing plate
C. cast iron anti creep bearing plate
D. none of the above

A. to permit lateral movement of the tongue rail
B. to maintain the two tongue rails at the exact distance
C. to ensure exact gauge at the toe of the switch as well as the nose of crossing
D. to prevent any vertical movement between the wing rail and nose of crossing

A. 1 in 250
B. 1 in 222
C. 1 in 235
D. 1 in 275

A. hook bolts
B. dog spikes
C. fang bolts
D. rail screws

A. 18
B. 19
C. 20
D. 21

A. 20 mm/sec
B. 35 mm/sec
C. 55 mm/sec
D. 65 mm/sec