Switch angle depends on
i) heel divergence
ii) length of tongue rail
iii) flangeway clearance
iv) throw of switch
The correct answer is

A. Stop B. Proceed C. Proceed cautiously D. None of the above

A. 25 mm B. 40 mm C. 50 mm D. 10mm

A. 12 m and 12 m B. 12 m and 13 m C. 13 m and 12 m D. 13 m and 13 m

A. 2 B. 3 C. 4 D. none of the above