Time: DGCA Air Navigation questions

Question 1

Mean time has been introduced in order to:

Accepted Answer

introduce a constant measurement of time, independent of the daily variations in the movement of the sun as observed from the earth.

Answer

have one fixed time to be used within the border of a country.

Answer

compensate for the irregularities of the speed of rotation of the earth around it is axis.

Question 2

An a/c is crossing IDL from 150° E to 108° W at 0000 UTC, at destination.

Accepted Answer

Date is behind and LMT is ahead

Answer

LMT is behind and date is ahead.

Answer

Both LMT and date are behind

Question 3

At 10 hr 40 min at 160° E, difference between zone time and LMT will be.

Accepted Answer

Zone time will be ahead of LMT by 20 min

Answer

Zone time will be ahead of LMT by 40 min

Answer

LMT will be ahead of ZT by 20 min

Question 4

Local Mean Time of a place is the time lapsed since the transit of the mean sun over.

Accepted Answer

its antemeridian

Answer

its meridian

Answer

the prime meridian

Question 5

I.S.T. and the LMT of a place can be the same only when.

Accepted Answer

the Longitude of the place is 82 deg. 30 min. East

Answer

the place is in India

Answer

all the above

25 more questions in this chapter, free with an account