TIME - Dgca question bank for pilots

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#1. LMT at A (42° 23/N 105° E) is 01:00 hrs on 12/02. Find UTC and LMT at place B which is (23° 45’S 62°W).

CHECK ANSWER

At 105°E LMT = 01:00 At 0° Diff = 07 hr (i) Time 1800 UTC on previous day(11/2)

(ii) At 62° W Diff = 4 hr 08 min.

#2. Observer’s meridian 40°N 11° 20’E. LMT 13:00 hrs Find LMT at (i) 060°N 121°21? E (ii) 53°S 110°23’W

#3. Mean time has been introduced in order to:

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

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

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

#4. An a/c takes off from X (35°S 168°W) for place Y (32°S 164°15’E) It flies for 8h 20?, time of departure X is 2145 hr LMT 2nd June. Find ETA at Y in LMT.

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

LMT is behind and date is ahead.

Both LMT and date are behind

Date is behind and LMT is ahead

#6. LMT at 55° 29? N000° E is 1200 hrs on 01 March. Find UTC at 23° 23? S180°E

#7. UTC at 93°30? W is 0100 hrs. Find ZT.

#8. ZT at 52° 30’E is 12:00 hrs. Find UTC and LMT.

CHECK ANSWER

52°30′ ÷ 13 = 3. UTC = 09:00 hrs LMT = 12:30 hrs

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

Zone time will be ahead of LMT by 20 min

Zone time will be ahead of LMT by 40 min

LMT will be ahead of ZT by 20 min

#10. Find LMT, ZT and IST (82.5°E) at 30°N 90° E if UTC is 02:00 hrs.

CHECK ANSWER

UTC = 02:00 hrs, ZT = 08:00 hrs, LMT = 08:00 hrs, IST = 07:30 hrs

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

its meridian

its antemeridian

the prime meridian

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

the place is in India

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

all the above

#13. The LMT at a place in India is 0400. If the position of the place is 10 deg. N and 78 deg. East, the IST at that place will be

0400

0418

0342

#14. Mumbai’s position is 19 deg. 05 min N and 73 deg. 00 min. East. There is a place exactly North of Mumbai whose latitude is 21 deg. N and long. 73 deg. 00 min. East When IST in Mumbai is 1200 hrs. then the IST at the other place will be

1122

1200

1238

#15. When GMT at CHennai 1300N 8300E is 110 hrs. The IST at Kolkatta 2000N 8830E will be:

1122

1100

1630

#16. On the 27th of February, at 52°S and 040°E, the sunrise is at 0243UTC on the same day, at 52°S and 035°W, the sunrise is at:

0243 LMT

0743 LMT

0523 LMT

#17. The sun rises at 50°N and 025°E on the 25th January at 0254UTC. On the same day what time does it rise at 50°N and 040°W?

0254 UTC.

0714 UTC.

2154 UTC.

#18. What is the meaning of the term “standard time”?

it is another term for UTC

it is the time set by the legal authorities for a country or part of a country

it is an expression for local mean time

#19. The local mean time at longitude 095°20’W at 0000UTC is:

1738:40 same day

1738:40 previous day

0621:20 previous day

#20. What does 5 hours 50 minutes and 20 seconds change of longitude represent?

80°05

87°35

35°15

#21. The times given for sunrise, sunset, morning and evening twilight in the air almanac:

are given in UTC.

are given in standard time.

are given in LMT.

#22. A is at longitude 01230E and B is at longitude 04315E LMT in B is 1749. What is the LMT in A?

1546

1706

1952

#23. Consider the following statements on sunrise and sunset.

in May sunrise occurs later 4500N than at 4500S.

in November sunset occurs earlier at 4500S than at 4500N.

at equator sunrise and sunset occur at quite regular times throughout the year.

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