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UPSC Civil Service Exam Questions - Engineering

Q1:

The declination of a star is 21° 15' N at a latitude of 43° 30' N. The zenith distance at the upper culmination is

A 22° 15'

B 21° 15'

C 64° 45'

D 43° 30'

ANS:A - 22° 15'

The zenith distance is the distance between the star and the latitude axis.
I.e. 43°30' - 21°15' = 22°15'.