A. mild steel
B. cast iron
C. wrought iron
D. high carbon steel
Related Mcqs:
- 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 - 52 kg rails are mostly used in__________________?
A. Broad Gauge
B. Meter Gauge
C. Narrow Gauge
D. both (A) and (B) - The type of spike used for fixing chairs of bull headed rails to wooden sleepers is_________________?
A. dog spike
B. rail screw
C. elastic spike
D. round spike - Wear of rails is maximum in weight of___________________?
A. tangent track
B. sharp curve
C. tunnels
D. coastal area - The type of bearing plate used in all joints and on curves to give better bearing area to the rails is___________________?
A. flat mild steel bearing plate
B. mild steel canted bearing plate
C. cast iron anti creep bearing plate
D. none of the above - 60 R rails are mostly used in__________________?
A. Broad Gauge
B. Metre Gauge
C. Narrow Gauge
D. none of the above - Tensile strength of steel used in rails should not be less than____________________?
A. 450 MPa
B. 500 MPa
C. 700 MPa
D. 850 MPa - The following tests are conducted for rails _________________?
i) falling weight test
ii) tensile test
iii) hammer test
The compulsory tests are?A. only (i)
B. (i)and(ii)
C. (ii) and (iii)
D. (i) and (iii) - The limiting value of cant excess for Broad Gauge is________________?
A. 55 mm
B. 65 mm
C. 75 mm
D. l00 mm - 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