The cross-sectional area of 52 kg flat footed rail is_________________?
(A) 6155 mm2
(B) 6615 mm2
(C) 7235 mm2
(D) 7825 mm2
Tensile strength of steel used in rails should not be less than____________________?
(A) 450 MPa
(B) 500 MPa
(C) 700 MPa
(D) 850 MPa
60 R rails are mostly used in__________________?
(A) Broad Gauge
(B) Metre Gauge
(C) Narrow Gauge
(D) none of the above
The main function of a fish plate is________________?
(A) to join the two rails together
(B) to join rails with the sleeper
(C) to allow rail to expand and contract freely
(D) none of the above
Fish plate is in contact with rail at________________?
(A) web of rail
(B) fishing plane
(C) head of rail
(D) foot of rail
Due to battering action of wheels over the end of the rails, the rails get bent down and are deflected at ends. These rails are called_________________?
(A) roaring rails
(B) hogged rails
(C) corrugated rails
(D) buckled rails
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
To ensure exact gauge, the gauge tie plates are provided at_________________?
(A) toe of the switch
(B) nose of crossing
(C) both (A) and (B)
(D) none of the above
Two important constituents in the com-position of steel used for rail are_________________?
(A) carbon and silicon
(B) manganese and phosphorous
(C) carbon and manganese
(D) carbon and sulfur