A. 15 cm
B. 20 cm
C. 25 cm
D. 30cm
A. longitudinal movement of rail
B. lateral movement of rail
C. vertical movement of rail
D. difference in level of two rails
A. always less than flangeway clearance
B. equal to flangeway clearance
C. always greater than flangeway clearance
D. sometimes greater than flangeway clearance
A. 20 mm/sec
B. 35 mm/sec
C. 55 mm/sec
D. 65 mm/sec
A. to ensure that each switch is correctly set
B. to ensure that the point may not be operated while the train is on it
C. to detect any obstruction between and tongue rail
D. none of the above
A. will be more in the direction of B to A
B. will be more in the direction of A to B
C. will be maximum at the middle of A and B
D. cannot be determined from the given data
A. 4
B. 8
C. 12
D. 14