A Broad Gauge branch line takes off as a contrary flexure from a main line If the superelevation required for branch line is 10 mm and cant deficiency is 75 mm, the superelevation to be actually provided on the branch line will be__________________?

A. 10 mm
B. 64 mm
C. 85 mm
D. 65 mm
✅ The correct answer is option D.

Which of the following statements regarding ballast materials are correct ?

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
✅ The correct answer is option D.