CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the antipode of 35° N, 70° E?
A. 35° S, 110° W
B. 35° N, 110° W
C. 35° N, 70° W
D. 35° S, 70° E
Correct Answer: A
For an antipode, reverse N/S, subtract the longitude from 180°, and reverse E/W. Therefore the antipode is 35° S, 110° W.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the antipode of 20° N, 30° E?
A. 20° N, 30° W
B. 20° S, 150° W
C. 20° N, 150° W
D. 20° S, 30° E
Correct Answer: B
For an antipode, reverse N/S, subtract the longitude from 180°, and reverse E/W. Therefore the antipode is 20° S, 150° W.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the ideal local-time difference between 5° E and 100° E?
A. 3 h 10 min
B. 9 h 30 min
C. 12 h 40 min
D. 6 h 20 min
Correct Answer: D
The shortest longitude separation is 95°. At 4 minutes per degree, the time difference is 380 minutes.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the ideal local-time difference between 70° W and 20° W?
A. 1 h 40 min
B. 6 h 40 min
C. 5 hours
D. 3 h 20 min
Correct Answer: D
The shortest longitude separation is 50°. At 4 minutes per degree, the time difference is 200 minutes.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the ideal local-time difference between 25° E and 80° E?
A. 1 h 50 min
B. 3 h 40 min
C. 7 h 20 min
D. 5 h 30 min
Correct Answer: B
The shortest longitude separation is 55°. At 4 minutes per degree, the time difference is 220 minutes.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the ideal local-time difference between 135° W and 45° W?
A. 6 hours
B. 12 hours
C. 9 hours
D. 3 hours
Correct Answer: A
The shortest longitude separation is 90°. At 4 minutes per degree, the time difference is 360 minutes.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the ideal local-time difference between 150° E and 30° E?
A. 12 hours
B. 4 hours
C. 16 hours
D. 8 hours
Correct Answer: D
The shortest longitude separation is 120°. At 4 minutes per degree, the time difference is 480 minutes.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the ideal local-time difference between 10° E and 40° W?
A. 5 hours
B. 3 h 20 min
C. 1 h 40 min
D. 6 h 40 min
Correct Answer: B
The shortest longitude separation is 50°. At 4 minutes per degree, the time difference is 200 minutes.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the ideal local-time difference between 45° W and 90° W?
A. 4 h 30 min
B. 6 hours
C. 3 hours
D. 1 h 30 min
Correct Answer: C
The shortest longitude separation is 45°. At 4 minutes per degree, the time difference is 180 minutes.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the ideal local-time difference between 105° E and 45° E?
A. 6 hours
B. 2 hours
C. 8 hours
D. 4 hours
Correct Answer: D
The shortest longitude separation is 60°. At 4 minutes per degree, the time difference is 240 minutes.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the ideal local-time difference between 75° W and 15° E?
A. 6 hours
B. 12 hours
C. 3 hours
D. 9 hours
Correct Answer: A
The shortest longitude separation is 90°. At 4 minutes per degree, the time difference is 360 minutes.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the ideal local-time difference between 120° E and 60° W?
A. 6 hours
B. 12 hours
C. 18 hours
D. 24 hours
Correct Answer: B
The shortest longitude separation is 180°. At 4 minutes per degree, the time difference is 720 minutes.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the ideal local-time difference between 90° E and 30° W?
A. 8 hours
B. 12 hours
C. 4 hours
D. 16 hours
Correct Answer: A
The shortest longitude separation is 120°. At 4 minutes per degree, the time difference is 480 minutes.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the ideal local-time difference between 60° W and 30° E?
A. 3 hours
B. 12 hours
C. 6 hours
D. 9 hours
Correct Answer: C
The shortest longitude separation is 90°. At 4 minutes per degree, the time difference is 360 minutes.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the ideal local-time difference between 15° W and 45° E?
A. 4 hours
B. 8 hours
C. 2 hours
D. 6 hours
Correct Answer: A
The shortest longitude separation is 60°. At 4 minutes per degree, the time difference is 240 minutes.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the ideal local-time difference between 20° E and 50° E?
A. 1 hours
B. 2 hours
C. 3 hours
D. 4 hours
Correct Answer: B
The shortest longitude separation is 30°. At 4 minutes per degree, the time difference is 120 minutes.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
What is the ideal local-time difference between 30° E and 75° E?
A. 1 h 30 min
B. 6 hours
C. 3 hours
D. 4 h 30 min
Correct Answer: C
The shortest longitude separation is 45°. At 4 minutes per degree, the time difference is 180 minutes.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
If it is 12:00 noon at Greenwich, what is the local solar time at 120° W?
A. 3:00 AM
B. 2:00 AM
C. 4:00 AM
D. 5:00 AM
Correct Answer: C
120° ÷ 15° per hour = 8 hours. Places east are ahead of Greenwich; places west are behind.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
If it is 12:00 noon at Greenwich, what is the local solar time at 90° W?
A. 5:00 AM
B. 4:00 AM
C. 7:00 AM
D. 6:00 AM
Correct Answer: D
90° ÷ 15° per hour = 6 hours. Places east are ahead of Greenwich; places west are behind.
CSS - PMS - CCE - PCS - Geography
Latitude and Longitude
If it is 12:00 noon at Greenwich, what is the local solar time at 75° W?
A. 8:00 AM
B. 6:00 AM
C. 7:00 AM
D. 5:00 AM
Correct Answer: C
75° ÷ 15° per hour = 5 hours. Places east are ahead of Greenwich; places west are behind.