Largest percentage of material in the rail is in its__________________?

A. 1 in 257
B. 1 in 357
C. 1 in 457
D. 1 in 512

A. heel of the switch to the toe of the switch
B. heel of the switch to the theoretical nose of the crossing
C. toe of the switch to the theoretical nose of crossing
D. toe of the switch to the actual nose of crossing

A. CL = L – SL
B. L =CL-SL
C. SL = L + CL
D. L = (CL+SL)/2

A. 2
B. 3
C. 4
D. 5

i) volume and nature of traffic
ii) speed of train
iii) physical features of the country
The correct answer is ?
A. only (i)
B. both (i) and (ii)
C. both (ii) and (iii)
D. (i), (ii) and (iii)

A. 0.168 cm
B. -0.168 cm
C. 7.432 cm
D. 7.768 cm