Latitude, Longitude and Standard Time - Practice Test 3

Attempt the quiz above first, then review every question with its correct answer and a short explanation below.

1. Q1.Why is it 7:30 PM in India when it is 2:00 PM in London?

   • A.India is west of London
   • B.India is east of London near 82°30'E✓ Correct Answer
   • C.Earth rotates East to West
   • D.Government decision

   Explanation: India is East of Greenwich and IST is 5h 30m ahead of GMT.

2. Q2.Russia has how many standard time zones?

   • A.5
   • B.9
   • C.11✓ Correct Answer
   • D.1

   Explanation: Russia spans a vast longitudinal extent and has 11 time zones.

3. Q3.The earth has been divided into how many time zones?

   • A.12
   • B.24✓ Correct Answer
   • C.180
   • D.360

   Explanation: The Earth is divided into 24 time zones of one hour each.

4. Q4.Each time zone covers how many degrees of longitude?

   • A.10°
   • B.15°✓ Correct Answer
   • C.20°
   • D.30°

   Explanation: 360 degrees / 24 hours = 15 degrees per zone.

5. Q5.The approximate time difference between Gujarat (Dwarka) and Arunachal Pradesh (Dibrugarh) is:

   • A.30 minutes
   • B.1 hour
   • C.1 hour 45 minutes✓ Correct Answer
   • D.2 hours 30 minutes

   Explanation: There is a difference of about 1 hour and 45 minutes (approx 2 hours) due to roughly 30° longitude difference.

6. Q6.What is the International Date Line (IDL)?

   • A.0° Longitude
   • B.90° Longitude
   • C.180° Longitude✓ Correct Answer
   • D.Equator

   Explanation: The IDL corresponds roughly to the 180° longitude line.

7. Q7.Why is the International Date Line zigzag?

   • A.To look stylish
   • B.To avoid dividing land masses/island groups✓ Correct Answer
   • C.Earth's shape is irregular
   • D.Magnetic fields

   Explanation: It deviates to allow island groups (like Fiji, Tonga) to stay in the same day.

8. Q8.A traveler crossing the IDL from East to West (USA to Japan):

   • A.Gains a day (adds a date)✓ Correct Answer
   • B.Loses a day (subtracts a date)
   • C.Time stays same
   • D.Clocks stop

   Explanation: Crossing Westwards (into the Eastern hemisphere), you skip a day (e.g., Monday becomes Tuesday), so you 'add' a date to your calendar.

9. Q9.A Great Circle is formed by:

   • A.Equator only
   • B.Prime Meridian only
   • C.Every pair of opposite meridians
   • D.All of the above✓ Correct Answer

   Explanation: The Equator is a Great Circle, and any two opposite meridians (forming a full circle) also form a Great Circle.

10. Q10.The shortest distance between two points on Earth lies along:

    • A.A straight line on a flat map
    • B.A Great Circle✓ Correct Answer
    • C.A latitude line
    • D.A zigzag line

    Explanation: Air and sea routes follow Great Circles to minimize distance.

11. Q11.The latitudinal extent of India is approximately:

    • A.8°4' N to 37°6' N✓ Correct Answer
    • B.68°7' E to 97°25' E
    • C.0° to 23°30' N
    • D.8°4' S to 37°6' S

    Explanation: India's mainland extends from 8°4' N to 37°6' N latitudes.

12. Q12.The longitudinal extent of India is approximately:

    • A.8°4' N to 37°6' N
    • B.68°7' E to 97°25' E✓ Correct Answer
    • C.68°7' W to 97°25' W
    • D.50° E to 100° E

    Explanation: India extends from 68°7' E to 97°25' E longitudes.

13. Q13.Which latitude passes through the middle of India?

    • A.Equator
    • B.Tropic of Capricorn
    • C.Tropic of Cancer✓ Correct Answer
    • D.Arctic Circle

    Explanation: The Tropic of Cancer (23°30' N) divides India into almost two equal halves.

14. Q14.If it is 10:00 AM at 0° longitude, what is the time at 60° E?

    • A.6:00 AM
    • B.2:00 PM✓ Correct Answer
    • C.12:00 PM
    • D.4:00 PM

    Explanation: 60° × 4 min = 240 min = 4 hours ahead. 10 AM + 4 hrs = 2 PM.

15. Q15.The time of a place is 6:00 PM when it is 12:00 Noon at Greenwich. What is the longitude of the place?

    • A.90° W
    • B.90° E✓ Correct Answer
    • C.60° E
    • D.60° W

    Explanation: Difference is 6 hours = 360 minutes. 360 / 4 = 90°. Since time is ahead, it is East. 90° E.

16. Q16.Antipodes are places located:

    • A.Diametrically opposite on Earth✓ Correct Answer
    • B.On the same latitude
    • C.On the same longitude
    • D.Near the equator

    Explanation: Antipodes are points on the exact opposite side of the globe.

17. Q17.What is the latitude of the North Pole?

    • A.0°
    • B.90° N✓ Correct Answer
    • C.180°
    • D.45° N

    Explanation: The North Pole is at 90° N.

18. Q18.Which continent is cut by Equator, Tropic of Cancer, and Tropic of Capricorn?

    • A.Asia
    • B.Africa✓ Correct Answer
    • C.South America
    • D.Australia

    Explanation: Africa is the only continent through which all three major latitudinal lines pass.

19. Q19.The region between the Arctic Circle and the North Pole is:

    • A.Torrid Zone
    • B.North Temperate Zone
    • C.North Frigid Zone✓ Correct Answer
    • D.Equatorial Zone

    Explanation: The area between 66.5° N and 90° N is the North Frigid Zone.

20. Q20.Which parallel of latitude is also known as the 'Great Circle'?

    • A.Tropic of Cancer
    • B.Equator✓ Correct Answer
    • C.Arctic Circle
    • D.45° Parallel

    Explanation: The Equator is the only latitude that is a Great Circle.