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UPSC Civil Service Exam Questions - Engineering

Q1:

Which one of the following statements is correct ?
Cant deficiency is the difference between

A actual cant provided at the time of construction and at the time of renewal.

B the equilibrium cant necessary for the maximum permissible speed and actual cant provided.

C cant required at maximum speed and minimum speed

D two parallel rails after 10 years.

ANS:B - the equilibrium cant necessary for the maximum permissible speed and actual cant provided.

Can't deficiency = theoretical can't - actual can't.

Theoretical can't always be more than actual can't.