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Question (11)

QN0025382

At 45°E longitude, if Greenwich time is 12 noon, local time will be:

(A) 1 pm
(B) 2 pm
(C) 3 pm
(D) 4 pm

Correct Answer: C

Explanation:

45° ÷ 15 = 3 hours ahead

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Question (12)

QN0025383

At 30°W longitude, if Greenwich time is 12 noon, local time will be:

(A) 10 am
(B) 11 am
(C) 1 pm
(D) 2 pm

Correct Answer: A

Explanation:

30° west = 2 hours behind GMT

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Question (13)

QN0025384

The reference time for time zones is based on:

(A) Equator
(B) Prime Meridian
(C) Tropic of Cancer
(D) International Date Line

Correct Answer: B

Explanation:

Time zones are based on Prime Meridian

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Question (14)

QN0025385

Greenwich Mean Time (GMT) is related to: (Greenwich Mean Time)

(A) 0° longitude
(B) 90° longitude
(C) 180° longitude
(D) 0° latitude

Correct Answer: A

Explanation:

GMT is at 0° longitude

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Question (15)

QN0025386

Indian Standard Time (IST) is ahead of GMT by: (Indian Standard Time)

(A) 3 hours
(B) 4 hours
(C) 5 hours 30 minutes
(D) 6 hours

Correct Answer: C

Explanation:

IST = GMT + 5:30

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Question (16)

QN0025387

If it is 12 noon at Greenwich, time in India will be: (Indian Standard Time)

(A) 12 noon
(B) 3:30 pm
(C) 5:30 pm
(D) 6:30 pm

Correct Answer: C

Explanation:

Add 5 hours 30 minutes to GMT

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Question (17)

QN0025388

Standard time is adopted because:

(A) Every place has same local time
(B) A country cannot use many local times
(C) Longitude does not affect time
(D) Earth does not rotate

Correct Answer: B

Explanation:

One standard time is convenient for a country

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Question (18)

QN0025389

A country usually selects standard time based on:

(A) A suitable meridian passing through it
(B) Equator
(C) Highest mountain
(D) Largest city

Correct Answer: A

Explanation:

Standard time is based on a chosen meridian

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Question (19)

QN0025390

One hour difference corresponds to approximately:

(A) 5° longitude
(B) 10° longitude
(C) 15° longitude
(D) 30° longitude

Correct Answer: C

Explanation:

Earth rotates 15° per hour

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Question (20)

QN0025391

Two places separated by 60° longitude have a time difference of:

(A) 2 hours
(B) 3 hours
(C) 4 hours
(D) 5 hours

Correct Answer: C

Explanation:

60° ÷ 15° = 4 hours

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Question (11)

At 45°E longitude, if Greenwich time is 12 noon, local time will be:

Explanation:

Link:

Question (12)

At 30°W longitude, if Greenwich time is 12 noon, local time will be:

Explanation:

Link:

Question (13)

The reference time for time zones is based on:

Explanation:

Link:

Question (14)

Greenwich Mean Time (GMT) is related to: (Greenwich Mean Time)

Explanation:

Link:

Question (15)

Indian Standard Time (IST) is ahead of GMT by: (Indian Standard Time)

Explanation:

Link:

Question (16)

If it is 12 noon at Greenwich, time in India will be: (Indian Standard Time)

Explanation:

Link:

Question (17)

Standard time is adopted because:

Explanation:

Link:

Question (18)

A country usually selects standard time based on:

Explanation:

Link:

Question (19)

One hour difference corresponds to approximately:

Explanation:

Link:

Question (20)

Two places separated by 60° longitude have a time difference of:

Explanation:

Link:

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