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UPSC Civil Service Exam Questions - Engineering

Q1:

Consider the following factors :
1. Elevation
2. Temperature
3. Gradient
4. Trip length.
For finding the runway length, which of these are taken into reckoning ?

A 1 and 3

B 2 and 4

C 1 and 2

D 1, 2, 3 and 4

ANS:D - 1, 2, 3 and 4

How temperature affects the runway length?