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International Date Line and Time Determination

30 MCQ questions with answers and explanations · page 1 of 2

Test yourself▶ 25 question test

Q1. The International Date Line is called -

  1. A0⁰latitude
  2. B0⁰ longitude
  3. C66 1/2⁰latitude
  4. D180 ⁰longitude
Show answer & explanation

Answer: D) 180 ⁰longitude

Q2. In which year was the International Date Line determined?

  1. A1662 AD
  2. B1745 AD
  3. C1884 AD
  4. D1947 AD
Show answer & explanation

Answer: C) 1884 AD

Q3. The position of the International Date Line is nearest to which of the following?

  1. A0⁰latitude
  2. B0⁰ longitude
  3. C90Eastern and Western longitudes
  4. D180Eastern and Western longitudes
Show answer & explanation

Answer: D) 180Eastern and Western longitudes

Q4. 180 from GreenwichThe imaginary midday line is called -

  1. AInternational Date Line
  2. Blatitude line
  3. CTropic of Capricorn
  4. DTropic of Cancer
Show answer & explanation

Answer: A) International Date Line

Q5. Unlike other meridians, the International Date Line is drawn crookedly so that-

  1. ASome land areas and island groups can be placed on the same calendar day
  2. BTo make it easier for sailors to adjust their watches
  3. CSailors traveling from east to west or west to east could adjust the day in the calendar
  4. D180⁰ East and 180⁰ West can be made co-habitable
Show answer & explanation

Answer: A) Some land areas and island groups can be placed on the same calendar day

Q6. The International Date Line is not perfectly straight because of-

  1. ACoriolis force
  2. Binternational agreement
  3. Cuniform day and time in different parts of some countries
  4. Dall of the above
Show answer & explanation

Answer: C) uniform day and time in different parts of some countries

Q7. The reason for the deviation of the International Date Line in the North Pacific Ocean is -

  1. AHawaiian Islands
  2. BAleutian Islands
  3. CCurile Islands
  4. Dall of the above
Show answer & explanation

Answer: B) Aleutian Islands

Q8. If it is 12 noon on the International Date Line, what will be the standard time of India at that time?

  1. A6:30 am
  2. B5:30 pm
  3. C5:30 am
  4. D6:30 pm
Show answer & explanation

Answer: B) 5:30 pm

Q9. How many times can the Earth be divided into belts?

  1. A2
  2. B4
  3. C24
  4. D64
Show answer & explanation

Answer: C) 24

Q10. From which longitude is the standard time of India taken?

  1. A82½⁰ W
  2. B85 1/2⁰ W
  3. C87 1/2⁰ E
  4. D82 1/2⁰ E
Show answer & explanation

Answer: D) 82 1/2⁰ E

Q11. From which place is the standard time of India determined?

  1. AMumbai
  2. BDelhi
  3. CAllahabad
  4. DCoimbatore
Show answer & explanation

Answer: C) Allahabad

Q12. What is the time difference between Greenwich Mean Time and Indian Standard Time?

  1. A4 hours 30 minutes
  2. B5 hours 30 minutes
  3. C6 hours
  4. D6 hours 30 minutes
Show answer & explanation

Answer: B) 5 hours 30 minutes

Q13. In which of the following places the standard time and local time are almost the same?

  1. ANew Delhi
  2. BNanny
  3. CAhmedabad
  4. DRanchi
Show answer & explanation

Answer: B) Nanny

Q14. What is the difference in local time between the easternmost and westernmost places of India?

  1. A1 hour
  2. B1 hour 30 minutes
  3. C2 hours
  4. D2 hours 30 minutes
Show answer & explanation

Answer: C) 2 hours

Q15. How many times does the International Date Line deviate from 180° longitude?

  1. A4
  2. B8
  3. C60
  4. D10
Show answer & explanation

Answer: A) 4

Q16. The International Date Line differs from the 180° longitude meridian so that it-

  1. ADo not divide the islands under a single administration
  2. BDivide the Pacific Ocean into two equal parts
  3. CDon't split the Bering Strait
  4. DDivide the territories under a single administration.
Show answer & explanation

Answer: A) Do not divide the islands under a single administration

Q17. If the local standard time of a place is 12 hours ahead of Greenwich time, then where will that place be located?

  1. A90⁰ E
  2. B90°W
  3. C180° E
  4. D180° E
Show answer & explanation

Answer: C) 180° E

Q18. The time at Greenwich is 12 noon, what will be the time at a place located at 50° East longitude?

  1. A8:40 am
  2. B3:20 pm
  3. C5:00 am
  4. D12:00 midnight
Show answer & explanation

Answer: B) 3:20 pm

Q19. If Greenwich (0 If it is 12:00 midnight at 30° longitude, what will be the time in Cairo, located at 30° East longitude?

  1. A2 p.m.
  2. B10 p.m.
  3. C8 p.m.
  4. D12 o'clock at night
Show answer & explanation

Answer: A) 2 p.m.

Q20. The difference in the longitudinal positions of two places on the Earth is 15What will be the difference in local time?

  1. A1 hour
  2. B2 hours
  3. C5 hours
  4. D15 hours
Show answer & explanation

Answer: A) 1 hour

Q21. If the time difference between two places is 2 hours 20 minutes, then the difference in longitude will be-

  1. A45⁰
  2. B30⁰
  3. C40⁰
  4. D35⁰
Show answer & explanation

Answer: D) 35⁰

Q22. Where does the International Date Line pass through?

  1. A0⁰
  2. B180⁰
  3. C90⁰
  4. D270⁰
Show answer & explanation

Answer: B) 180⁰

Q23. What country is Greenwich in?

  1. AUSA
  2. BU.K.
  3. CHolland
  4. DIndia
Show answer & explanation

Answer: B) U.K.

Q24. What is the difference between the local time of two places when crossing a longitude?

  1. A8 minutes
  2. B4 minutes
  3. C2 minutes
  4. D0 minutes
Show answer & explanation

Answer: B) 4 minutes

Q25. Which of the following statements is false regarding the International Date Line?

  1. AThis is an imaginary line
  2. BIn the Bering Sea, this line is bent towards the west.
  3. C75 At northern latitudes, this line is bent westwards.
  4. DThis line is bent eastwards in the South Pacific Ocean to keep New Zealand and the Fiji Islands together.
Show answer & explanation

Answer: C) 75 At northern latitudes, this line is bent westwards.

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