i) outer signal
ii) home signal
iii) starter
iv) advanced starter
The correct answer is?
A. (i) and (ii)
B. (ii) and (iii)
C. (iii) and (iv)
D. (i) and (iv)
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 257
B. 1 in 357
C. 1 in 457
D. 1 in 512
A. 15 cm
B. 20 cm
C. 25 cm
D. 30cm
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. less than 2 mm/m
B. more than 2 mm/m
C. less than 4 mm/m
D. more than 4mm/m
A. 12 m and 12 m
B. 12 m and 13 m
C. 13 m and 12 m
D. 13 m and 13 m