Q. At which latitude does the sun appear directly overhead at noon during the equinox? (2021)
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A.
0 degrees
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B.
23.5 degrees North
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C.
23.5 degrees South
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D.
90 degrees
Solution
At the equinox, the sun is directly overhead at the equator, which is at 0 degrees latitude.
Correct Answer: A — 0 degrees
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Q. At which longitude would the local time be 3 hours ahead of GMT?
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A.
45°E
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B.
60°E
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C.
75°E
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D.
90°E
Solution
Each hour corresponds to 15 degrees. Therefore, 3 hours ahead means 3 * 15 = 45 degrees east of GMT, which is 45°E.
Correct Answer: C — 75°E
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Q. How many degrees of longitude correspond to a time difference of 4 hours? (2022)
-
A.
60 degrees
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B.
45 degrees
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C.
30 degrees
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D.
15 degrees
Solution
A time difference of 4 hours corresponds to 4 * 15 = 60 degrees of longitude.
Correct Answer: A — 60 degrees
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Q. How many time zones are there in the world if each zone is 15 degrees apart?
Solution
The Earth is 360 degrees, and if each time zone is 15 degrees, then 360 / 15 = 24 time zones.
Correct Answer: B — 24
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Q. If a location is at 120 degrees West longitude, what is its time zone relative to GMT? (2023)
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A.
GMT-8
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B.
GMT-7
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C.
GMT-6
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D.
GMT-5
Solution
120 degrees West corresponds to GMT-8, as each 15 degrees represents one hour.
Correct Answer: A — GMT-8
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Q. If a place is located at 120°W longitude, what is its time difference from GMT?
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A.
-8 hours
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B.
-7 hours
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C.
-6 hours
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D.
-5 hours
Solution
120°W corresponds to 120 / 15 = 8 hours behind GMT, hence -8 hours.
Correct Answer: A — -8 hours
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Q. If a plane travels from 60°E to 60°W, how many hours will it take to cross this distance if it travels at a speed of 15° per hour?
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A.
8 hours
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B.
10 hours
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C.
12 hours
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D.
15 hours
Solution
The total distance is 60° + 60° = 120°. At 15° per hour, it will take 120 / 15 = 8 hours.
Correct Answer: B — 10 hours
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Q. If it is 12:00 noon at the Prime Meridian (0 degrees longitude), what time is it at 45 degrees East longitude? (2020)
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A.
6:00 AM
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B.
12:00 PM
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C.
6:00 PM
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D.
3:00 PM
Solution
At 45 degrees East, it is 45/15 = 3 hours ahead. Therefore, it is 12:00 PM + 3 hours = 3:00 PM.
Correct Answer: C — 6:00 PM
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Q. If it is 12:00 noon at the Prime Meridian (0° longitude), what time is it at 75°W longitude?
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A.
6:00 AM
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B.
7:00 AM
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C.
8:00 AM
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D.
9:00 AM
Solution
Each degree of longitude represents 4 minutes of time. 75°W = 75 * 4 = 300 minutes = 5 hours. Therefore, it is 12:00 noon - 5 hours = 7:00 AM.
Correct Answer: C — 8:00 AM
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Q. If it is 3:00 PM in New Delhi (77°E), what time is it in London (0° longitude)?
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A.
8:30 AM
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B.
9:30 AM
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C.
10:30 AM
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D.
11:30 AM
Solution
New Delhi is 77°E, which is 77 * 4 = 308 minutes = 5 hours and 8 minutes ahead of GMT. Therefore, 3:00 PM - 5:08 = 9:30 AM.
Correct Answer: B — 9:30 AM
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Q. If it is 3:00 PM in New York (GMT-5), what time is it in London (GMT+0)? (2022)
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A.
8:00 AM
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B.
10:00 AM
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C.
12:00 PM
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D.
3:00 PM
Solution
New York is 5 hours behind London, so 3:00 PM + 5 hours = 8:00 PM in London.
Correct Answer: B — 10:00 AM
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Q. What is the angular distance in degrees between two longitudes of 30°E and 90°E?
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A.
60°
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B.
90°
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C.
120°
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D.
150°
Solution
The angular distance is calculated as |90° - 30°| = 60°.
Correct Answer: A — 60°
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Q. What is the angular distance in degrees between two meridians that are 1 hour apart in time? (2021)
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A.
15 degrees
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B.
30 degrees
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C.
45 degrees
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D.
60 degrees
Solution
The Earth rotates 360 degrees in 24 hours, so in 1 hour, it rotates 360/24 = 15 degrees.
Correct Answer: A — 15 degrees
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Q. What is the local time at 45°E if it is 12:00 noon at GMT?
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A.
3:00 PM
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B.
4:00 PM
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C.
5:00 PM
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D.
6:00 PM
Solution
45°E corresponds to 45 / 15 = 3 hours ahead of GMT, so it will be 12:00 noon + 3 hours = 3:00 PM.
Correct Answer: B — 4:00 PM
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Q. What is the local time at 90 degrees East longitude when it is 6:00 AM at the Prime Meridian? (2023)
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A.
3:00 AM
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B.
9:00 AM
-
C.
12:00 PM
-
D.
6:00 PM
Solution
90 degrees East is 6 hours ahead of GMT, so 6:00 AM + 6 hours = 12:00 PM.
Correct Answer: B — 9:00 AM
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Q. What is the time difference between two places located at 30°E and 30°W?
-
A.
2 hours
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B.
4 hours
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C.
6 hours
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D.
8 hours
Solution
The total angular distance is 30° + 30° = 60°. The time difference is 60 / 15 = 4 hours.
Correct Answer: C — 6 hours
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Q. What is the time difference between two places located at 75 degrees East and 15 degrees West longitude? (2020)
-
A.
6 hours
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B.
8 hours
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C.
10 hours
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D.
12 hours
Solution
The total difference in longitude is 75 + 15 = 90 degrees. Therefore, the time difference is 90/15 = 6 hours.
Correct Answer: B — 8 hours
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Q. Which of the following is NOT a reason for the existence of time zones? (2019)
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A.
Earth's rotation
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B.
Political boundaries
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C.
Latitude differences
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D.
Geographical features
Solution
Time zones are primarily based on longitude and the Earth's rotation, not latitude differences.
Correct Answer: C — Latitude differences
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Q. Which of the following longitudes is closest to the International Date Line?
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A.
150°E
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B.
180°
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C.
150°W
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D.
120°W
Solution
The International Date Line is at 180°, so the closest longitude is 180°.
Correct Answer: B — 180°
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Q. Which of the following statements is true regarding time zones? (2019)
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A.
Time zones are always 30 degrees apart.
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B.
Time zones can vary in width.
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C.
All countries have the same time zone.
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D.
Time zones are based on latitude.
Solution
Time zones can vary in width due to political and geographical reasons, not strictly based on longitude.
Correct Answer: B — Time zones can vary in width.
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