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GC Leong Test: The Earth & The Universe- 1 - BPSC (Bihar) MCQ


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10 Questions MCQ Test - GC Leong Test: The Earth & The Universe- 1

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

Consider the following statements regarding the Solar system:

1. All the planets revolve around the Sun in elliptical orbits.

2. Like the earth, Planets shine only by the reflected light of the sun.

Which of these statements is/are correct?

Detailed Solution for GC Leong Test: The Earth & The Universe- 1 - Question 1
  • The solar system comprises the Sun and its nine planets which are believed to have been developed from the condensation of gases and other lesser bodies.

  • All the planets revolve around the Sun in elliptical orbits. Like the earth, they shine only by the reflected light of the sun.

GC Leong Test: The Earth & The Universe- 1 - Question 2

Consider the following statements regarding the planet Mercury:

1. Amongst the eight planets, Mercury is the smallest and closest to the sun.

2. Mercury completes its orbit in a much longer space of time than does Earth.

Which of these statements is/are correct?

Detailed Solution for GC Leong Test: The Earth & The Universe- 1 - Question 2

Amongst the eight planets, Mercury is the smallest and closest to the sun, only 36 million miles away. It thus completes its orbit in a much shorter space of time than does Earth.

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GC Leong Test: The Earth & The Universe- 1 - Question 3

Which of the planet is the second largest after Jupiter?

Detailed Solution for GC Leong Test: The Earth & The Universe- 1 - Question 3
Another unique planet is Saturn which has three rings and nine satellites around it. In size, it is the second largest after Jupiter. It is so far from the Sun that it takes 294 years to complete its orbit.

GC Leong Test: The Earth & The Universe- 1 - Question 4

Consider the following statements:

1. When a ship appears over the distant horizon, the top of the mast is seen first before the hull.

2. In the same way, when it leaves the harbour, its disappearance over the curved surface is equally gradual.

3. If the earth was flat, the entire ship would be seen or obscured all at once.

Which of these statements is/are correct?

Detailed Solution for GC Leong Test: The Earth & The Universe- 1 - Question 4

Ship's visibility: When a ship appears over the distant horizon, the top of the mast is seen first before the hull. In the same way, when it leaves the harbour, its disappearance over the curved surface is equally gradual. The earth was flat, the entire ship would be seen or obscured all at once.

GC Leong Test: The Earth & The Universe- 1 - Question 5

Consider the following statements:

1. The earth is a sphere, places in the east see the sun earlier than those in the west.

2. If the earth was flat, places in the west would have seen the sun earlier than those in the East.

Which of these statements is/are correct?

Detailed Solution for GC Leong Test: The Earth & The Universe- 1 - Question 5
The sun rises and sets at different times in different places. As the earth rotates from west to east, places in the east see the sun earlier than those in the west. If the earth were flat, the whole world would have sunrise and sunset at the same time.

GC Leong Test: The Earth & The Universe- 1 - Question 6

Consider the following statements.

1. In the summer (June) Daylight increases as we go polewards.

2. At the Arctic Circle, the sun never 'sets' at mid-summer (21 June).

Which of these statements is/are incorrect?

Detailed Solution for GC Leong Test: The Earth & The Universe- 1 - Question 6
  • Explanation:

    Both statements are correct:

  • In the summer (June) Daylight increases as we go polewards: This is correct because during the summer solstice in the Northern Hemisphere, areas closer to the poles experience longer daylight hours. As you move towards the poles, the duration of daylight increases, leading to phenomena like the "Midnight Sun" in polar regions.

  • At the Arctic Circle, the sun never 'sets' at mid-summer (21 June): This is also correct. On the summer solstice (around June 21), the Arctic Circle experiences 24 hours of daylight, meaning the sun does not set, a phenomenon known as the "Midnight Sun."

  • Since both statements are correct, the answer is that none of the above statements are incorrect.

GC Leong Test: The Earth & The Universe- 1 - Question 7

Consider the following statements about Winter solstice:

1. By about 22 December, the sun will be overhead at the Tropic of Capricorn

2. At that time, Southern hemisphere will have its shortest day and longest night

Which of these statements is/are correct?

Detailed Solution for GC Leong Test: The Earth & The Universe- 1 - Question 7

By about 22. December, the sun will be overhead at the Tropic of Capricorn (23 1/2°S.). This is the winter solstice when the southern hemisphere will have its longest day and shortest night. The Tropics thus mark the limits of the overhead sun, for, beyond these, the sun is never overhead at any time of the year. Such regions are marked by distinct seasonal changes— spring, summer, autumn and winter. Beyond the Arctic Circle (66 1/2°N.) and the Antarctic Circle (66 1/2°S.) where darkness lasts for 6 months and daylight is continuous for the remaining half of the year.

GC Leong Test: The Earth & The Universe- 1 - Question 8

Consider the following statements latitudes:

1. Latitude is the angular distance of a point on the earth surface measured in miles from the centre

2. Parallels of latitude become larger polewards

Which of these statements are not correct?

Detailed Solution for GC Leong Test: The Earth & The Universe- 1 - Question 8
  • Latitude is the angular distance of a point on the earth's surface, measured in degrees from the centre of the earth. It is parallel to a line, the equator, which lies midway between the poles.

  • The most important lines of latitude are the equator, the Tropic of Cancer (23 1/2 °N.), the Tropic of Capricorn (23 1/2°S.), the Arctic Circle (66 1/2°N.) and the Antarctic Circle (66 1/2°S.).

  • As the earth is slightly flattened at the poles, the linear distance of a degree of latitude at the pole is a little longer than that at the equator.

GC Leong Test: The Earth & The Universe- 1 - Question 9

Consider the following statements 'Rotation of the Earth':

1. The earth rotates from west to east, after moving 15 degrees eastwards, local time is advanced by 1 hour.

2. Conversely, if we go westwards, local time is retarded by 1 hour.

Which of these statements is/are correct?

Detailed Solution for GC Leong Test: The Earth & The Universe- 1 - Question 9
  • Since the earth makes one complete rotation of 360° in one day or 24 hours, it passes through 15° in one hour or 1° in 4 minutes.

  • We may thus conclude that places east of Greenwich see the sun earlier and gain time, whereas places west of Greenwich see the sun later and lose time.

  • If we know G.M.T., to find the local time, we merely have to add or subtract the difference in the number of hours from the given longitude, as illustrated below. Simple memory aid for this will be East-Gain-Add (E. G. A.) and West-Lose Subtract (W.L.S.).

GC Leong Test: The Earth & The Universe- 1 - Question 10

Consider the following statements regarding the Dateline:

1. A traveller crossing the dateline from east to west loses a day.

2. While crossing the dateline from west to the east he gains a day.

Which of these statements is/are correct?

Detailed Solution for GC Leong Test: The Earth & The Universe- 1 - Question 10

A traveller crossing the dateline from east to west loses a day (because of the loss in time he has made), and while crossing the dateline from west to east he gains a day (because of the gain in time he encountered).

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