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UPSC Civil Service Exam Questions - Engineering

Q1:

The smallest scale adopted for topographical surveys is

A 1 : 25, 000

B 1 : 50, 000

C 1 : 2, 50, 000

D 1 : 5, 00, 000

ANS:A - 1 : 25, 000

C is absolutely correct.

It varies from 1/50000 to 1/250000.

The smallest is 1/250000.