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
Related Mcqs:
- Minimum depth of ballast cushion for a Broad Gauge wooden sleeper of size 275x25x13 cm with 75cm sleeper spacing is________________?
A. 15 cm
B. 20 cm
C. 25 cm
D. 30cm - Width of ballast section for Broad Gauge is_________________?
A. 1.83 m
B. 2.25 m
C. 3.35 m
D. 4.30 m - The nominal size of ballast used for points and crossings is___________________?
A. 25 mm
B. 40 mm
C. 50 mm
D. 10mm - Study the following statements regarding creep_________________?
i) Creep is greater on curves than on tangent railway track
ii) Creep in new rails is more than that in old rails
iii) Creep is more on steep gradients than on level track
The correct answer is?A. only (i)
B. (i)and(ii)
C. (ii) and (iii)
D. (i), (ii) and (iii) - For laying the railway track, materials required are__________________?
A. Rails
B. FishPlates
C. Fish Bolts
D. Bearing Plates
The quantities required for one kilometer of Broad Gauge track will be - Consider the following statements about concrete sleepers_________________?
1. They improve the track modulus.
2. They have good scrap value.
3. They render transportation easy.
4. They maintain the gauge quite satisfactorily.Of these statementsA. 1 and 2 are correct
B. 2 and 3 are correct
C. 3 and 4 are correct
D. 1 and 4 are correct - For developing thinly populated areas, the correct choice of gauge is_________________?
A. Broad Gauge
B. Meter Gauge
C. Narrow Gauge
D. any of the above - The correct relation between curve lead (CL), switch lead (SL) and lead of cros¬sing (L) is given by__________________?
A. CL = L – SL
B. L =CL-SL
C. SL = L + CL
D. L = (CL+SL)/2 - Which one of the following rail failures is caused by loose fish bolts at expansion joints ?
A. crushed head
B. angular break
C. split head
D. transverse fissures - Which of the following mechanical devices is used to ensure that route cannot be changed while the train is on the point even after putting back the signal ?
A. detectors
B. point lock
C. iock bar
D. stretcher bar
