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
Related Mcqs:
- The treadle bar is provided_____________________?
A. in the middle of the track a little in front of the toes of the tongue rail
B. near and parallel to inner side of one of the rails
C. at right angle to the rail
D. near and parallel to inner side of both the rails - A treadle bar is used for_____________________?
A. interlocking points and signal
B. setting points and crossings
C. setting marshalling yard signals
D. track maintenance - Number offish bolts per fish plate is________________?
A. 2
B. 4
C. 5
D. 6 - The maximum degree of curvature for Meter Gauge is limited to_________________?
A. 10°
B. 16°
C. 30°
D. 40° - The limiting value of cant excess for Broad Gauge is________________?
A. 55 mm
B. 65 mm
C. 75 mm
D. l00 mm - On a single rail track, goods trains loaded with heavy iron material run starting from A to B and then empty wagons run from B to A. The amount of creep in the rails__________________?
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 - Which of the following statements regarding ballast materials are correct ?
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 - Number of keys used in CST-9 sleeper is_________________?
A. 2
B. 3
C. 4
D. none of the above - The width of foot for 90 R rail section is__________________?
A. 100 mm
B. 122.2 mm
C. 136.5 mm
D. 146.0 mm - In a B.G. railway track, the specified ruling gradent is 1 in 250. The horizontal curve of 3° on a gradient of 1 in 250 will have the permissible gradient of__________________?
A. 1 in 257
B. 1 in 357
C. 1 in 457
D. 1 in 512
