The load on each axle of a locomotive is 22 tonnes. If the coefficient of friction is 0.2, then the hauling capacity due to 3 pairs of driving wheels will be________________?

A. Brick ballast has poor drainage characteristics.
B. Coal ash is not used as ballast with steel or cast iron sleepers.
C. Gravel ballast gives better performance on soft formation.
D. Sand ballast causes excessive wear on top of rail

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

A. for points and crossings in the lead portion
B. with wooden sleepers at locations where creep is likely to be developed
C. on all joints and curves
D. on all the above

A. 4.27 m
B. 4.88 m
C. 5.49 m
D. 6.10 m

A. wheel burns
B. hogging of rails
C. scabbing of rails
D. corrugation of rails

A. to ensure that each switch is correctly set
B. to ensure that the point may not be operated while the train is on it
C. to detect any obstruction between and tongue rail
D. none of the above