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UPSC Civil Service Exam Questions

Q1: A locomotive has four pairs of driving wheels carrying an axle load of 24 x 104 N. The maximum load that can be pulled if the coefficient of friction is 1/6, is

A 32 x 104 N

B 16 x 104 N

C 8 x 104 N

D 4 x 104 N

ANS:B - 16 x 104 N

Hauling Power = number of pairs of driving(n) wheel * weight on each driving axle(W) * coefficient of friction(f).

Here n= 4,
W = 24 * 10^4,
f = 1/6,
So hauling power = 4 * 24 * 10^4 * (1/6) =16 * 10^4.



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