Top 30 Geography MCQs for TNPSC,TN TRB,TNUSRB Exams

பல்வேறு போட்டித் தேர்வுகளில் புவியியல் முக்கியப் பங்காற்றுகிறது, விண்ணப்பதாரர்களுக்கு அவர்களின் தயாரிப்பில் உதவ, நாங்கள் 30 கேள்விகளை (MCQs) தொகுத்துள்ளோம். உங்கள் புவியியல் அறிவை மேம்படுத்துவதற்கும், வரவிருக்கும் தேர்வுகளுக்கு உங்களை சிறப்பாக தயார்படுத்துவதற்கும் ஒவ்வொரு கேள்விக்கும் சரியான பதில் உள்ளது.

Q1. Consider the following statement:

Numerous stars and celestial bodies came by a massive explosion called big bang
The universe is also referred to as Cosmos.

Which of the following is/are correct?

(a) 1 only

(b) 2 only

(d) None of the above

Q2. Which of the following is true?

Assertion – A: The stars are seen big from earth.

Reason – R: The stars are far away from the earth.

(a) ‘A’ is correct/ ‘R’ is wrong

(b) ‘R’ is correct/ ‘A’ is wrong

(d) ‘A’ and ‘R’ are correct

Q3. Which of the following is correct regarding ‘Universe’?

(a) Numerous Stars together called the Universe.

(b) The celestial bodies together are called the Universe.

(d) Both ‘b’ and ‘c’.

Q4. Which of the following statements is correct?

The study of the universe is called Cosmology.
The Numerous stars collectively known as the big bang.

(a) 1 only

(b) 2 only

(d) None of the above

Q5. Which of the following is correct?

Assertion – A: The Venus is the Hottest planet of the Solar system.

Reason – R: Mercury is the nearest Planet to the Sun.

(a) ‘A’ is correct/ ‘R’ is wrong

(b) ‘R’ is correct/ ‘A’ is wrong

(d) ‘A’ and ‘R’ are correct

Q6. Which of the following statements is correct?

A Light year is the unit used to measure the distance between the celestial bodies.
Stars, planets, comets, asteroids, meteoroids, natural satellites are collectively called celestial bodies.

(a) 1 only

(b) 2 only

(d) None of the above

Q7. Which of the following is correct?

Assertion – A: Galaxy is a cluster of stars which are held together by gravitational force.

Reason – R: Milky way galaxy is formed after 5 billion years of bigbang.

(a) ‘A’ is correct/ ‘R’ is wrong

(b) ‘R’ is correct/ ‘A’ is wrong

(d) ‘A’ and ‘R’ are correct

Q8. Which of the following statements is correct?

A light-year is the distance travelled by light in a year.
Light travels at a velocity of 3 lakh km per second.

(a) 1 only

(b) 2 only

(d) None of the above

Q9. Which of the following is correct?

Assertion – A: Sun is made up of extremely hot gases like Hydrogen and Helium.

Reason – R: Unlike stars the Sun doesn’t give lights on its own.

(a) ‘A’ is correct/ ‘R’ is wrong

(b) ‘R’ is correct/ ‘A’ is wrong

(d) ‘A’ and ‘R’ are correct

Q10. Which of the following statements is correct?

Sunlight takes about 8. 3 minutes to reach the Earth.
The planets revolve in their respective orbits because of the gravitational pull of the Sun.

(a) 1 only

(b) 2 only

(d) None of the above

Q11. Which of the Tamil literature mentions planets revolve around the sun?

(a) Manimegalai

(b) Silapathikaram

(d) None of the above

Q12. The solar system is a part of which galaxy?

(a) Milky Way

(b) Big bang

(d) None of the above

Q13. Which of the following statements is correct regarding the third nearest planet to the sun?

Earth is the third planet from the sun.
It is the 4th largest planet and also called the ‘blue Planet’.

(a) 1 only

(b) 2 only

(d) None of the above

Q14. Which one of the following is correct regarding dwarf planets?

Assertion – A: Makemake and Haumea are the dwarf planets.

Reason – R: They are small celestial bodies found beyond the planet Neptune and extremely cold and dark.

(a) ‘A’ is correct/ ‘R’ is wrong

(b) ‘R’ is correct/ ‘A’ is wrong

(d) ‘A’ and ‘R’ are correct

Q15. Which of the following is correct regarding gas giant planets?

It is the largest planet in the solar system.
This planet is the fastest spinning in the solar system.

(a) 1 only

(b) 2 only

(d) None of the above

Q16. Which one of the following is correct regarding planet Jupiter?

Assertion – A: Europa, Ganymede & Callisto are the largest satellites of Jupiter.

Reason – R: They are Natural satellites of Jupiter.

(a) ‘A’ is correct/ ‘R’ is wrong

(b) ‘R’ is correct/ ‘A’ is wrong

(d) ‘A’ and ‘R’ are correct

Q17. Which among the following is not correct about inner planets?

They are called Terrestrial Planets.
These planets are bigger in size and composed of gas.

(a) 1 only

(b) 2 only

(d) None of the above

Q18. Which among the following is correct about Jovian planets?

They are called Gaseous Planets.
An asteroid belt is found between Mars and Jupiter.

(a) 1 only

(b) 2 only

(d) None of the above

Q19. Which of the following planets doesn’t have Natural satellite?

(a) Earth

(b) Mars

(d) Jupiter

Q20. Which of the following statements about the Mars Orbiter Mission (MOM) is correct?

The Mars Orbiter Mission was launched by the Indian Space Research Organization (ISRO) on September 24, 2014.
The Mars Orbiter Mission made ISRO the fourth space agency to successfully reach Mars after the Soviet Space programme, NASA, and the European Space Agency.

(a) 1 only

(b) 2 only

(d) None of the above

Q21. Which of the following statements about Uranus is correct?

Uranus rotates on its axis from east to west, similar to Venus.
Titania is the largest Natural Satellite.

(a) 1 only

(b) 2 only

(d) None of the above

Q22. What is the region where asteroids are found?

(a) Between Earth and Mars

(b) Between Mars and Jupiter

(d) Between Saturn and Uranus

Q23. What is the name of India’s first Moon mission launched by ISRO in 2008?

(a) Chandrayaan – 1

(b) Mars Orbiter Mission

(d) Chandrayaan – 2

Q24. What are comets primarily composed of?

(a) Rocks and dust

(b) Gases and dust

(d) Metals and minerals

Q25. Which is the most famous comet that comes close to the Earth every 76 years?

(a) Hale-Bopp

(b) Halley’s Comet

(d) Comet McNaught

Q26. What is the composition of the tail of a comet?

(a) Solid particles

(b) Rocks and minerals

(d) Ice and water vapor

Q27. What are meteors often referred to as when they appear as streaks of light in the sky?

(a) Comets

(b) Asteroids

(d) Planetoids

Q28. What are meteors called when they strike the Earth’s surface?

(a) Asteroids

(b) Comets

(d) Meteorites

Q29. Why does the Sun appear to be in different positions throughout the day?

(a) The Sun moves around the Earth

(b) The Earth rotates on its axis

(d) The Earth’s shape affects the Sun’s position

Q30. At what angle is the Earth’s axis tilted from the vertical?

(a) 90°

(b) 45°

(d) 66½°

S1. Ans. (c)

The Universe, which includes numerous stars and celestial bodies, originated from a colossal explosion known as the Big Bang.
These celestial bodies collectively form the Universe and are also referred to as the Cosmos.

S2. Ans. (b)

The stars that are visible appear small due to their immense distance from Earth. However, in reality, these stars are incredibly massive in size.

S3. Ans. (b)

The Universe, which includes numerous stars and celestial bodies, originated from a colossal explosion known as the Big Bang. These celestial bodies collectively form the Universe and are also referred to as the Cosmos.

S4. Ans. (a)

Statement 1:

The study of the universe is called Cosmology.This statement is correct.
Cosmology is indeed the scientific study of the origin, evolution, and structure of the universe.

Statement 2:

The Numerous stars collectively known as the big bang.This statement is incorrect.
The Big Bang refers to the prevailing scientific theory that explains the origin and early development of the universe, not the collection of stars.

S5. Ans. (d)

Assertion (A):

Venus is the Hottest planet of the Solar system.
Venus is considered the hottest planet in our solar system due to its thick atmosphere and greenhouse effect, which traps heat and raises its surface temperature to extremely high levels.

Reason (R):

Mercury is the nearest Planet to the Sun.
Mercury is the planet closest to the Sun in our solar system.

S6. Ans. (c)

The universe consists of billions of galaxies, stars, planets, comets, asteroids, meteoroids and natural satellites.
These are collectively called celestial bodies, which are located far away from each other.
A Light year is the unit used to measure the distance between the celestial bodies.

S7. Ans. (d)

A galaxy is a huge cluster of stars which are held together by gravitational force.
The Milky Way Galaxy was formed about 5 billion years after the Big Bang explosion.
Our solar system is a part of the Milky Way galaxy.

S8. Ans. (c)

A light-year is the distance travelled by light in a year.
Light travels at a velocity of 300,000 km per second.
Sound travels at a speed of 330 m per second.

S9. Ans. (a)

The Sun is made up of extremely hot gases like Hydrogen and Helium.
The Sun is a star and it is self-luminous; it gives light on its own.
The surface temperature of the Sun is about 6,000° C.
It is the source of light and heat energy to the entire solar system.

S10. Ans. (c)

The Sun is at the centre of the solar system.
Each member of the solar system revolves around the Sun.
Sunlight takes about 8.3 minutes to reach the Earth.
The eight planets revolve in their respective orbits because of the gravitational pull of the Sun.

S11. Ans. (c)

In ancient Tamil literature, specifically in Sirupanatruppadai, there is a verse that states, “வாள் நிற விசும்பின் கோள் மீன் சூழ்ந்த இளங்கதிர் ஞாயிறு,” which signifies the understanding that the Sun is encircled by planets. This showcases the knowledge possessed by the Tamils of that time regarding the planetary motion around the Sun.

S12. Ans. (a)

Sol.

The solar system is a part of the Milky Way.
The Milky Way Galaxy formed 5 billion years after the Big Bang.
Mercury, Venus, Earth and Mars are called terrestrial planets
Jupiter, Saturn, Uranus and Neptune are called gaseous planets.

S13. Ans. (a)

Earth, positioned third in line from the Sun and ranking fifth in size among the planets in our solar system, is widely recognized as the ‘blue planet’ or ‘watery planet’ due to its vast water expanse, covering three-fourths of its surface.

The only natural satellite of the Earth is the Moon.

S14. Ans.(d)

Sol.

Dwarf planets are small celestial bodies found beyond the planet Neptune.
They are extremely cold and dark.
They are almost spherical in shape, but unlike planets they can share their orbit with other dwarf planets.
The five dwarf planets of the solar system are Pluto, Ceres, Eris, Makemake and Haumea.

S15. Ans.(c)

Sol.

Jupiter is the fifth planet from the Sun and the largest planet in the solar system.
It is the third brightest object in the night sky, after the moon and Venus.
It is the fastest spinning planet in the solar system. It is called a gas giant planet.

S16. Ans.(d)

Sol.

Jupiter atmosphere is mostly made up of Hydrogen and Helium like the Sun.
It has the largest number of natural satellites.
Io, Europa, Ganymede and Callisto are a few large satellites of Jupiter.

S17. Ans. (b)

Sol.

The four planets nearer to the Sun are called Inner or Terrestrial Planets (Mercury, Venus, Earth and Mars).
The inner planets are comparatively smaller in size and are composed of rocks.
The surface of inner planets has mountains, volcanoes and craters.

S18. Ans. (c)

Sol.

The last four planets are called Outer Planets or Jovian Planets (Jupiter, Saturn, Uranus, and Neptune).
They are also called Gaseous Giants.
An asteroid belt is found between Mars and Jupiter.

S19. Ans.

Sol.

Mercury is the smallest and closest planet to the Sun.
It has no natural satellites.
Moon is the natural satellite of Earth.
Europa, Ganymede and Callisto are natural satellites of Jupiter.
Mars has two natural satellites namely Phobos and Deimos.

S20. Ans. (c)

Sol.

Explanation:

Statement 1 is correct. The Mars Orbiter Mission, also known as Mangalyaan, was indeed launched by the Indian Space Research Organization (ISRO) on September 24, 2014.

Statement 2 is correct. The Mars Orbiter Mission made ISRO the fourth space agency to successfully reach Mars after the Soviet Space programme, NASA, and the European Space Agency.

S21. Ans. (c) Both 1 and 2

Sol.

Uranus, known as the “Somersaulting Planet” is the seventh planet from the Sun, discovered by William Herschel in 1781. Its distinct green appearance is due to the presence of methane gas, and its highly tilted axis gives it a rolling motion as it orbits the Sun. With 27 natural satellites, including the largest moon Titania.Unlike most planets, Uranus rotates on its axis from east to west, similar to Venus.

S22. Ans. (b)Between Mars and Jupiter.

Sol.

Asteroids are small solid objects that move around the Sun and are found in a belt called the asteroid belt, which is located between the orbits of Mars and Jupiter. They are too small to be considered planets and are also known as planetoids or minor planets.

S23. Ans. (a) Chandrayaan – 1

Sol.

ISRO (Indian Space Research Organisation) launched India’s first-ever Moon mission called Chandrayaan – 1 in 2008. Chandrayaan – 1 was an unmanned mission aimed at exploring the lunar surface and gathering scientific data about the Moon.

S24. Ans. (c) Ice and solid particles.

Sol.

Comets are celestial objects consisting of a head and a tail. The head of a comet is composed of solid particles held together by ice, while the tail is made up of gases. When a comet approaches the Sun, the heat causes the ice to vaporize, creating a glowing coma and a characteristic tail.

S25. Ans. (b) Halley’s Comet.

Sol.

Halley’s Comet is the most famous comet known for its regular appearance. It orbits the Sun and comes close to the Earth approximately every 76 years. It was last seen in 1986 and is expected to appear again in 2061.

S26. Ans. (c) Dust and gases.

Sol.

The tail of a comet is composed of dust and gases. As a comet approaches the Sun, the heat causes the ice in the head of the comet to vaporize, releasing gas and creating a glowing coma around the solid core. The solar wind and radiation pressure push the gas and dust particles away from the comet, forming the characteristic tail.

S27. Ans. (c) Shooting Stars

Sol.

Meteors, when they enter the Earth’s atmosphere and burn up, often appear as streaks of light in the sky. Due to this visual effect, they are commonly known as Shooting Stars, even though they are not stars but rather stone-like or metallic bodies.

S28. Ans. (d) Meteorites

Sol.

Meteors that survive the passage through the Earth’s atmosphere and reach the Earth’s surface are referred to as meteorites. These are the remnants of meteors that have successfully made it through the atmospheric entry and impact the Earth.

S29. Ans. (b) The Earth rotates on its axis

Sol.

The apparent movement of the Sun throughout the day is due to the rotation of the Earth on its axis. As the Earth spins, different parts of the planet face the Sun at different times, causing the Sun to appear in different positions in the sky. In the morning, the Sun is seen in the east, in the afternoon it is overhead, and in the evening, it is seen in the west.

S30. Ans. (c) 23½°

Sol.

The Earth’s axis is always tilted or inclined from the vertical by an angle of 23½°. This tilt is responsible for the changing seasons on Earth as different parts of the planet receive varying amounts of sunlight throughout the year. The angle of 66½° mentioned in the passage refers to the angle the Earth’s axis makes with the plane of its orbit around the Sun, not the tilt angle itself.

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