1000+ Astronomy MCQ for SBI PO [Solved]

1. The axis of Mars la inclined at an angle of
A. 25°
B. 30°
C. 35°
D. 15°
Answer : A

2. Big Bang Theory' explains
A. the formation of universe
B. the origin and evolution of earth's crust
C. formation of Solar System
D. formation of constellation
Answer : A

3. Which planet has the largest equatorial radius?
A. Jupiter
B. Saturn
C. Mars
D. Earth
Answer : A

4. The Sun contains over ___of the total mass of the Solar System.
A. 0.825
B. 0.98
C. 0.998
D. 0.02
Answer : C

5. How many planets does our Solar System consist of?
A. 9
B. 6
C. 7
D. 10
Answer : A

6. Which of the following is known as the Cold Planet?
A. Mars
B. Uranus
C. Jupiter
D. Venus
Answer : C

7. An imaginary belt of 12 constellations or group of stars la called
A. Zodiac
B. Steller group
C. Pulsar
D. Zodiacal light
Answer : A

8. What is the temperature of the sun estimated at approximately?
A. 5000°C
B. 6000°C
C. 7000°C
D. 212°C
Answer : B

9. Polar circumference of the Earth is
A. 40000 km
B. 4000 km
C. 50000 km
D. 5000 km
Answer : A

10. How much is the variation In distance between the Earth and the Sun during aphelion and perihelion?
A. 5000000 km
B. 500000 km
C. 50000 km
D. 5000 km
Answer : A

11. Average density of the Earth is ( relative to water) __.
A. 5.5
B. 4.5
C. 9.5
D. 6.5
Answer : A

12. Which two planets do not have any satellites?
1. Mercury
2. Venus
3. Saturn
4. Pluto
A. 1 and 2
B. 2 WtQ 3
C. 3 and 4
D. 1 and 4
Answer : A

13. What is the average radius of the Earth?
A. 6071km
B. 6571km
C. 6371km
D. 6771 km
Answer : C

14. Shoemaker-Levy 9 is a
A. Meteors
B. Pole Stars
C. Comets
D. Stars
Answer : C

15. Equatorial circumference of the Earth is
A. 40067 km
B. 50067 km
C. 4067 km
D. 5067 km
Answer : A

16. On which date is the Earth in 'aphelion'?
A. July-4
B. December-22
C. September-23
D. June-21
Answer : A

17. The Jupiter's atmosphere comprises mainly of
A. Hydrogen and oxygen
B. Carbondioxide and oxygen
C. Hydrogen and hydrogen compounds
D. Nitrogen and helium
Answer : C

18. One Astronomical Unit is the average distance between
A. Earth and the Sun
B. Earth and the Moon
C. Jupiter and the Sun
D. Pluto and the Sun
Answer : A

19. What happens during the equinoxes?
A. The countries along the Equator are in darkness
B. The countries along the Equator are at their hottest
C. The countries along the Equator are at their wettest
D. The Sun shines vertically over the Equator
Answer : D

20. Which planet does take the least time in completing one revolution around the Sun?
A. Earth
B. Venus
C. Mercury
D. Mars
Answer : C

21. Smallest planet of our Solar System is _____.
A. Pluto
B. Earth
C. Venus
D. Mercury
Answer : A

22. Which star has the largest percentage In the universe
A. Single stars
B. Binary stars
C. Multiple stars
D. Cephied stars
Answer : C

23. Planet with maximum satellites is _____.
A. Earth
B. Saturn
C. Jupiter
D. Pluto
Answer : B

24. A celestial body having its own heat and light is called
A. Planet
B. Moon
C. Star
D. Satellite
Answer : C

25. Arrange the Outer Planets in increasing order of their sizes.
1. Jupiter
2. Uranus
3. Saturn
4. Neptune
A. 4, 2, 3, 1
B. 4, 2, 1, 3
C. 2, 4, 3, 1
D. 4, 2, 3, 1
Answer : A

26. How many of the following statements are true?
1. Mean Solar Day is greater than Sidereal Day approximately by 4 minutes.
2. Earth's rotational velocity is decreasing.
3. Planets are arranged according to their increasing distance from the sun as follo
A. 3 and 4
B. 1, 3 and 4
C. 1 and 2
D. 1, 2, 3 and 4
Answer : D

27. How many satellites does the largest planet have?
A. Sixteen
B. Ten
C. Six
D. Nine
Answer : A

28. Which of the following statements are true?
1. Inner Planets are alternatively called Terrestrial Planets.
2. Outer Planets are Jupiter, Saturn, Uranus and Neptune. All four Outer Planets are considered as Great Planets.
3. Pluto is also considered as
A. 1, 2 and 4
B. 1 and 4
C. 1, 3 and 4
D. 1, 2, 3 and 4
Answer : A

29. When a year divisible by 4 and not divisible by 400 is called
A. Siderial Year
B. Solar Year
C. Cosmic Year
D. Leap Year
Answer : D

30. If the Sun dies It will be transformed Into a
A. White Dwarf
B. Black Dwarf
C. Quasar
D. All of the above
Answer : B

31. A leap year consists of
A. 365 days
B. 365 days and 6 months
C. 364 days
D. 366 days
Answer : D

32. The name of our galaxy is _______
A. Alfa Centauri
B. Proxima Centauri
C. Milky Way
D. Neptune
Answer : C

33. Which planet is called 'red planet'?
A. Mars
B. Jupiter
C. Mercury
D. Venus
Answer : A

34. The term 'syzygy' is referred to when the
A. Earth is at prihelion and Moon at perigee
B. Earth is at aphelion and Moon at apogee
C. Moon and Sun are at right angles with reference to the Earth
D. Moon, Sun and Earth lie along a straight line
Answer : C

35. The difference between day and night increases as one moves
A. From equator to poles
B. From poles to equator
C. From tropics to equator
D. From plains to mountains
Answer : A

36. A 'black hole' is a body in space which does not allow any radiation to come out. This property is due to its
A. Very small size
B. Very large size
C. Very high density
D. Very low density
Answer : C

37. The inclination of the earth's axis, i.e. the earth's axis is tilted at an angle from perpendicular to the orbital plane or makes an angle with the plane of the earth's orbit. What are these respective angles?
A. ${90}^0$
B. $23{\frac{1}{2}}^0$
C. $0^0$
D. $66{\frac{1}{2}}^0$
Answer : B

38. The group of small pieces of rock revolving round the Sun between the orbits of Mars and Jupiter are called
A. meteors
B. comets
C. meteorites
D. asteroids
Answer : D

39. What is peninsula?
A. A narrow belt of land
B. A mountainous island
C. A piece of land surrounded by water on three sides
D. A range of hills
Answer : C

40. Going into the interior of the earth the weight of an object
A. Increases
B. Decreases
C. Remains unchanged
D. First increases and then decreases
Answer : A

41. Average temperature of the Earth is.
A. 14°C
B. 24°C
C. 34°C
D. 20°C
Answer : A

42. Earth ranks _____ in the Solar System away from the Sun.
A. 5th
B. 4th
C. 6th
D. 3rd
Answer : A

43. A celestial body which revolves round the Sun and receives heat and light from it is called _____.
A. Planet
B. Orion
C. Satellite
D. Star
Answer : A

44. Hale Bopp' is a newly discovered ____.
A. Planet
B. Meteore
C. Satellite
D. Comet
Answer : D

45. What is a 'synodic month'?
A. Moon's period of rotation on its axis with respect to the earth.
B. Moon's period of revolution around the earth.
C. Moon's period of revolution with respect to a star at infinity
D. Moon's period of revolution with respect to the Sun
Answer : D

46. Which of the following statements is correct with reference to our Solar System?
A. The Earth is the densest of all the Planets in our Solar System
B. The predominant element in the composition of Earth is silicon
C. The sun contains 75 per cent of the mass of the Solar System
D. The diameter of the Sun is 190 times that of the Earth
Answer : A

47. Orion and Great Bear stand for ______.
A. star
B. planet
C. Solar System
D. Constellation
Answer : D

48. When the earth is at its maximum distance from the Sun it is said to be in
A. Perigee
B. Apogee
C. Perihelion
D. Aphelion
Answer : D

49. The shortest route between two places is along the
A. longitudes
B. latitudes
C. rivers
D. direction of winds
Answer : A

50. An ancient star that has collapsed matter so dense that It creates gravitational force so powerful that even light also does not escape. It Is called
A. QSO
B. Black Hole
C. Neutron Star
D. Black Dwarf
Answer : B