A. 70/R
B. 52.5/R
C. 35/R
D. 105/R
where R is radius of curve
A. wooden sleepers
B. CST-9 sleepers
C. steel trough sleepers
D. concrete sleepers
A. to join the two rails together
B. to join rails with the sleeper
C. to allow rail to expand and contract freely
D. none of the above
i) 2 obtuse angle crossings
ii) 4 obtuse angle crossings
iii) 4 acute angle crossings
iv) 6 acute angle crossings
The correct answer is ?
A. (i) and (iii)
B. (i)and(iv)
C. (ii) and (iii)
D. (ii) and (iv)
A. head
B. web
C. foot
D. head and foot both
A. 28.49 m
B. 21.04 m
C. 14.24 m
D. 7.45 m
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