

MCQOPTIONS
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1. |
Maximum allowable grades are lower for railways than for highways. The reason is: |
A. | Steel wheel on steel rails have greater frictional co-efficient than rubber tyres on pavements |
B. | Steel wheel on steel rails have lower frictional co-efficient than rubber tyres on pavements |
C. | High grade causes discomfort to passengers |
D. | Trains are longer than vehicles on highways |
Answer» C. High grade causes discomfort to passengers | |