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Test: Latitudes & Longitudes (UPSC Level) - UPSC MCQ


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10 Questions MCQ Test - Test: Latitudes & Longitudes (UPSC Level)

Test: Latitudes & Longitudes (UPSC Level) for UPSC 2024 is part of UPSC preparation. The Test: Latitudes & Longitudes (UPSC Level) questions and answers have been prepared according to the UPSC exam syllabus.The Test: Latitudes & Longitudes (UPSC Level) MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Latitudes & Longitudes (UPSC Level) below.
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Test: Latitudes & Longitudes (UPSC Level) - Question 1

Consider the following statements regarding the Earth's shape and dimensions:

1. The equatorial radius of Earth is larger than its polar radius due to the planet's rotation.

2. The Earth's equatorial radius is approximately 6,356 km.

3. The difference between Earth's equatorial and polar radii is about 22 km.

Which of the statements given above is/are correct?

Detailed Solution for Test: Latitudes & Longitudes (UPSC Level) - Question 1

Let's evaluate each statement:

1. The equatorial radius of Earth is larger than its polar radius due to the planet's rotation.

- This statement is correct. The Earth's rotation causes it to bulge slightly at the equator, making the equatorial radius larger than the polar radius.

2. The Earth's equatorial radius is approximately 6,356 km.

- This statement is incorrect. The Earth's equatorial radius is approximately 6,378 km, not 6,356 km. The value 6,356 km actually refers to the polar radius.

3. The difference between Earth's equatorial and polar radii is about 22 km.

- This statement is correct. The difference between the equatorial radius (6,378 km) and the polar radius (6,356 km) is indeed about 22 km.

Test: Latitudes & Longitudes (UPSC Level) - Question 2

Consider the following statements:

Statement-I:
The Torrid Zone receives the maximum heat on Earth due to the mid-day sun being directly overhead at least once a year between the Tropic of Cancer and the Tropic of Capricorn.

Statement-II:
The Frigid Zones have very cold temperatures because the sun does not rise much above the horizon in these regions, lying between the Arctic Circle and the North Pole in the Northern Hemisphere and the Antarctic Circle and the South Pole in the Southern Hemisphere.

Which one of the following is correct in respect of the above statements?

Detailed Solution for Test: Latitudes & Longitudes (UPSC Level) - Question 2


Both statements are correct in their respective descriptions of the Torrid Zone and the Frigid Zones. Statement-I correctly explains that the Torrid Zone receives maximum heat due to the direct overhead sun between the Tropics of Cancer and Capricorn. Statement-II accurately describes the Frigid Zones, highlighting their cold temperatures resulting from the sun's low position in the sky. The directness of the sun's rays significantly affects the temperature in these regions, making Statement-II an explanation of the conditions presented in Statement-I. Hence, Option A is the correct choice.

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Test: Latitudes & Longitudes (UPSC Level) - Question 3

Which of the following latitudes marks the boundary between the Torrid Zone and the Temperate Zones on Earth?

Detailed Solution for Test: Latitudes & Longitudes (UPSC Level) - Question 3

The Tropic of Cancer, located at 23½° north of the equator, marks the northern boundary of the Torrid Zone and the beginning of the Temperate Zone in the Northern Hemisphere. This latitude signifies where the sun is directly overhead at noon during the summer solstice in the Northern Hemisphere. This transition zone between the Torrid and Temperate Zones experiences varying angles of sunlight throughout the year, leading to distinct climate characteristics.

Test: Latitudes & Longitudes (UPSC Level) - Question 4

Consider the following statements:

Statement-I:
The Equator is an imaginary line running on the globe that divides it into two equal parts.

Statement-II:
All parallels north of the equator are called ‘North latitudes’ and indicated by the letter ‘N’, and all parallels south of the equator are called ‘South latitudes’ and indicated by ‘S’.

Which one of the following is correct in respect of the above statements?

Detailed Solution for Test: Latitudes & Longitudes (UPSC Level) - Question 4


The Equator is indeed an imaginary line that divides the Earth into two equal parts, the Northern Hemisphere and the Southern Hemisphere. Additionally, the statement about the North and South latitudes correctly explains how these parallels are indicated on the Earth. Therefore, Option A is correct. The Equator plays a crucial role in geography and understanding the global division, while the concept of latitudes further helps in specifying locations on the Earth's surface.

Test: Latitudes & Longitudes (UPSC Level) - Question 5

Why is it necessary to have Standard Time in different regions across the world?

Detailed Solution for Test: Latitudes & Longitudes (UPSC Level) - Question 5

Standard Time is crucial to maintain uniformity in timekeeping across different regions globally. It helps in establishing a common reference point for coordinating activities, such as transportation schedules, communication, and international business operations. Without Standard Time, the discrepancies in local times across various meridians would lead to confusion and inefficiencies in everyday life. Thus, the concept of Standard Time simplifies time management and facilitates smooth interactions on a worldwide scale.

Test: Latitudes & Longitudes (UPSC Level) - Question 6

Consider the following pairs:

1. Equator - 90 degrees latitude

2. North Pole - 90 degrees north latitude

3. South Pole - 90 degrees south latitude

4. Prime Meridian - 0 degrees longitude

How many pairs given above are correctly matched?

Detailed Solution for Test: Latitudes & Longitudes (UPSC Level) - Question 6

1. Equator - 90 degrees latitude: This pair is incorrectly matched. The Equator is at 0 degrees latitude, not 90 degrees. It is the baseline from which latitude is measured, dividing the Earth into the Northern and Southern Hemispheres.

2. North Pole - 90 degrees north latitude: This pair is correctly matched. The North Pole is indeed at 90 degrees north latitude, which is the northernmost point on Earth.

3. South Pole - 90 degrees south latitude: This pair is correctly matched. The South Pole is at 90 degrees south latitude, marking the southernmost point on Earth.

4. Prime Meridian - 0 degrees longitude: This pair is correctly matched. The Prime Meridian is the line of 0 degrees longitude, passing through Greenwich, England, and serves as the starting point for measuring longitude east and west around the Earth.

Thus, pairs 2, 3, and 4 are correctly matched.

Test: Latitudes & Longitudes (UPSC Level) - Question 7

What is the significance of the Equator in terms of latitude on Earth?

Detailed Solution for Test: Latitudes & Longitudes (UPSC Level) - Question 7

The Equator serves as the line of 0 degrees latitude on Earth and plays a crucial role in dividing the planet into the Northern Hemisphere and the Southern Hemisphere. This imaginary line is equidistant from the North Pole and the South Pole, providing a reference point for understanding the Earth's hemispheric divisions. It also helps in establishing other latitudinal measurements on the globe, such as the Tropic of Cancer and the Tropic of Capricorn.

Test: Latitudes & Longitudes (UPSC Level) - Question 8

Consider the following statements:

1. The earth rotates 360° in 24 hours, which means it rotates 15° in one hour.

2. The Indian Standard Time (IST) is based on the longitude 82° 30'E.

3. The time difference between Greenwich Mean Time (GMT) and Indian Standard Time (IST) is 6 hours.

Which of the statements given above is/are correct?

Detailed Solution for Test: Latitudes & Longitudes (UPSC Level) - Question 8

To determine the correct statements, let's analyze each one:

Statement 1: "The earth rotates 360° in 24 hours, which means it rotates 15° in one hour."
- This statement is correct. The earth completes one full rotation of 360° in 24 hours. Therefore, it rotates 15° every hour (360°/24 hours = 15° per hour).

Statement 2: "The Indian Standard Time (IST) is based on the longitude 82° 30'E."
- This statement is correct. The Indian Standard Time is indeed based on the meridian at 82° 30'E, which is used as the reference for the entire country.

Statement 3: "The time difference between Greenwich Mean Time (GMT) and Indian Standard Time (IST) is 6 hours."
- This statement is incorrect. The actual time difference between GMT and IST is 5 hours and 30 minutes, not 6 hours. IST is ahead of GMT by this amount due to the position of the standard meridian (82° 30'E).

Based on this analysis, only statements 1 and 2 are correct, making Option B: 1 and 2 Only the accurate answer.

Test: Latitudes & Longitudes (UPSC Level) - Question 9

Consider the following statements:

1. The Tropic of Cancer is located at 23½° North latitude.

2. The Antarctic Circle is situated at 66½° South latitude.

3. The Prime Meridian divides the Earth into Northern and Southern Hemispheres.

Which of the statements given above is/are correct?

Detailed Solution for Test: Latitudes & Longitudes (UPSC Level) - Question 9

1. Statement 1: The Tropic of Cancer is indeed located at 23½° North latitude. This is a well-known geographical fact, and it marks one of the major circles of latitude on Earth. Therefore, this statement is correct.

2. Statement 2: The Antarctic Circle is correctly identified as being situated at 66½° South latitude. This is an important parallel of latitude that marks the southernmost point at which the sun can be seen on the winter solstice in the Southern Hemisphere. Thus, this statement is also correct.

3. Statement 3: The Prime Meridian does not divide the Earth into Northern and Southern Hemispheres; rather, it divides the Earth into Eastern and Western Hemispheres. The division into Northern and Southern Hemispheres is done by the Equator. Hence, this statement is incorrect.

Based on the evaluation of each statement, only statements 1 and 2 are correct. Therefore, the correct answer is Option B: 1 and 2 Only.

Test: Latitudes & Longitudes (UPSC Level) - Question 10

Consider the following statements:

Statement-I:
The best means of measuring time is by the movement of the earth, the moon, and the planets.

Statement-II:
The local time of places which are on different meridians is bound to differ.

Which one of the following is correct in respect of the above statements?

Detailed Solution for Test: Latitudes & Longitudes (UPSC Level) - Question 10

Answer: B: Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I

  • Statement-I is correct because the movement of the Earth, Moon, and planets has historically been used to measure time, for example, through the solar day (based on Earth's rotation), lunar months (based on the moon's orbit around Earth), and planetary movements. These movements form the basis of various timekeeping systems.
  • Statement-II is also correct because local time varies based on the longitude (meridian) of different places. For example, places on different meridians (longitudes) will experience daylight and darkness at different times, leading to different local times.
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