Astronomy 1000+ MCQ with answer for RBI Grade B officer

1. What is siderial day?
A. Time taken by the earth to complete one rotation with respect to a fixed star at infinity
B. Time taken by the earth to complete one revolution with respect to the Moon
C. Time taken by the earth to complete one rotation with respect to the Moon
D. Time taken by the earth to complete one rotation with respect to the Sun
Answer : A

2. Which of the following are the Inner Planets?
1. Mercury
2. Venus
3. Earth
4. Mars
A. Only 1
B. 1 and 2
C. 1, 2 and 3
D. 1, 2, 3 and 4
Answer : D

3. A swarm of small bodies in between the two Planets of Solar System is called 'asteroids' which are those two Planets?
A. Mars and Jupiter
B. Earth and Venus
C. Neptune and Pluto
D. Jupiter and Saturn
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. The Sun experiences magnetic storms and this Interferes with the magnetic field oC the Earth and produces light which are called
A. Quasars
B. Polar Auroras
C. Meteorites
D. Pulsar
Answer : B

6. If the stars are seen to rise perpendicular to the horizon by an observer, he is located on the \
A. Equator
B. Tropic of Cancer
C. South Pole
D. North Pole
Answer : A

7. The atmosphere of Venus contains large quantity of
A. Carbondioxide and sulphuric acid
B. Carbondioxide and nitric acid
C. Nitrogen and sulphuric acid
D. Nitrogen and nitric acid
Answer : A

8. 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

9. 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

10. Distance between the Moon and the Earth is
1. Approximately 386000 km
2. 1.25 light seconds
A. Only 1
B. Only 2
C. Both land 2
D. None of these
Answer : C

11. A meteor is
A. a rapidly moving star
B. a piece of matter which has entered the earth's atmosphere from outer space
C. part of a constellation
D. a comet without a tail
Answer : B

12. In which direction la the Tropic oC Capricorn in relation to the Equator?
A. North
B. South
C. East
D. West
Answer : B

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

14. Deimos and Phobos are the satellites of
A. Earth
B. Mars
C. Uranus
D. Neptune
Answer : B

15. Which two Planets do not have any satellites?
A. Venus and Mercury
B. Venus and Uranus
C. Venus and Neptune
D. Mercury and Uranus
Answer : A

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

17. How much Is the average distance of the Sun from the Earth?
A. 150 million km
B. 145 million km
C. 155 million km
D. 140 million km
Answer : A

18. A celestial body which revolves round a planet just as a planet revolves round the Sun is called _____.
A. Moon
B. Asteroid
C. Satellite
D. Great Bear
Answer : C

19. What is the name given to the widened rivermouth found at the point a river enters the sea?
A. Estuary
B. Bay
C. Gulf
D. Delta
Answer : A

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

21. To a space traveller stationed in Moon, during the day time the lunar sky will appear
A. Blue
B. White
C. Black
D. Crimson Red
Answer : C

22. Speed of the revolution of the earth is___'
A. 100000 km per hour
B. 10000 km per hour
C. 1000 km per hour
D. 100 km per hour
Answer : A

23. From west to east, what are the three main island groups in the Pacific called?
A. Melanesia, Micronesia and Polynesia
B. Polynesia, Micronesia and Melanesia
C. Melanesia, Polynesia and Micronesia
D. Micronesia, Polynesia and Melanesia
Answer : A

24. Brightest planet of our Solar System is _____.
A. Venus
B. Mercury
C. Uranus
D. Saturn
Answer : A

25. Our Solar System is an orderly community of _____.
A. One star
B. Two stars
C. Three stars
D. Four stars
Answer : A

26. How many degrees north and south are the Tropics?
A. 47 degrees
B. 23.5 degrees
C. 12 degrees
D. 30 degrees
Answer : A

27. What la the difference between a gulf and a bay?
A. A gulf is big and a bay is small
B. A gulf is at a rivermouth and a bay is not
C. A bay is surrounded by cliffs and a gulf by lowland
D. Both are part of the sea that extend considerably into the land, but a bay usually has a wider entrance than a gulf
Answer : D

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

29. 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

30. What part of the moon's surface can be visible from the earth?
A. 1.59
B. 1.41
C. 0.5
D. 1/3rd
Answer : A

31. Which of the following is 'the cruel planet' in Indian astrology?
A. Jupiter
B. Saturn
C. Uranus
D. Neptune
Answer : B

32. The time period elapsing between one New Moon and the next is approximately
A. 8.19 Days
B. 30 days
C. 29.5 Days
D. 61 Days
Answer : C

33. How much time is taken by the Moon in completing one revolution around the Earth?
A. 27 days
B. 29 days
C. 29.32 days
D. 27.32 days
Answer : D

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

35. A family or system of millions and millions of stars are called ____.
A. Universe
B. Solar System
C. Galaxy
D. Asteroids
Answer : A

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

37. What is the geographical term for land's end, that tip of land which projects into the sea?
A. A headland
B. A spit
C. A peninsula
D. A cape
Answer : D

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

39. All asteroids collectively revolve around the
A. Sun
B. Planet
C. Satellite
D. Moon
Answer : A

40. Largest satellite in Solar System is ____.
A. Moon
B. Ganymede
C. Europa
D. Cheron
Answer : B

41. What is the position of the moon called when it la farthest from the earth?
A. Perigee
B. Perihelion
C. Aphelion
D. Apogee
Answer : D

42. 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

43. Sunspots are
A. undulations on the solar surface
B. huge magnetic storms on the solar surface
C. places with adequate sunshine
D. places of tourist importance
Answer : B

44. What is the name of 'brightest Planet'?
A. Venus
B. Mercury
C. Mars
D. Saturn
Answer : A

45. The planet of lowest density (0.69) is __ .
A. Jupiter
B. Saturn
C. Neptune
D. Pluto
Answer : B

46. Which of the following is the largest ocean?
A. Indian
B. Pacific
C. Atlantic
D. Arctic
Answer : B

47. What happens when ships cross the International Date Line?
A. They have to pay a tax
B. Ships going west from the USA lose a day, ships going east from Japan and Australia gain a day
C. They have to report at the customs post
D. They have to check their clocks agains
Answer : B

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

49. 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

50. 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