1000+ Astronomy Multiple Choice Question Answer [Solved]

1. 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

2. The permanent tilt of the Earth's axis and the revolution of the Earth in its orbit together cause
A. Day and night
B. Varying lengths of day and night at different times of the year
C. Differences in time between places on different meridians
D. The deflection of winds
Answer : B

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

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

5. 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

6. What is the difference between a lake and a tank?
A. A lake is small and a tank is big
B. A lake has flowing water, a tank has still water
C. A lake is a geographical feature, a tank is not
D. Both are land-enclosed water bodies, but the latter is man-made
Answer : D

7. Which planet rotates on its axis from east to west?
A. Venus
B. Uranus
C. Earth
D. Jupiter
Answer : A

8. Planet nearest to the earth is _____.
A. Venus
B. Mercury
C. Mars
D. Jupiter
Answer : A

9. Halley's comet visits us after every.
A. 66 years
B. 76 years
C. 86 years
D. 96 years
Answer : B

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

11. 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

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

13. 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

14. Which is the second largest satellite in the Solar System?
A. Titan
B. Charon
C. Ganymede
D. Europa
Answer : A

15. The time taken by the sun to revolve around the centre or our galaxy is
A. 25 million yrs
B. 100 million yrs
C. 250 million yrs
D. 500 millionyrs
Answer : C

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

17. 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

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

19. When dees the Summer Solstice occur?
A. July 23
B. June 21
C. May 20
D. April 31
Answer : B

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

21. 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

22. Outside Antarctica, which is the deepest part of the earth?
A. The Dead Sea
B. The Aral Sea
C. The Caspian Sea
D. Lake Baikal
Answer : A

23. 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

24. Rapidly rotating stars emitting intense radio waves are called ___.
A. Pulsars
B. Quasuars
C. Neutron stars
D. All of the above
Answer : A

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

26. Which of the following conditions la the most relevant for the presence of life on Mars?
A. Atmospheric composition
B. Thermal conditions
C. Occurrence of ice caps and frozen water
D. Occurrence of ozone
Answer : C

27. The word 'satellite' means _____.
A. wanderer
B. settlement
C. light
D. a smaller companion to anything
Answer : D

28. Consider the following statements regarding asteroids:
1. Asteroids are rocky debris of varying sizes orbiting the Sun.
2. Most of the asteroids are small but some have diameter as large as 1000 km.
3. The orbit of asteroids lies between the orbits of
A. 1, 2 and 3 are correct
B. 2 and 3 are correct
C. 1 and 2 are correct
D. 1 and 3 are correct
Answer : C

29. 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

30. The length of its day and the tilt of its axis are almost identical to those of the Earth. This is true or
A. Uranus
B. Neptune
C. Saturn
D. Mars
Answer : D

31. What is the distance around the earth at the Equator?
A. 21,000 km
B. 16,800 km
C. 18,600 km
D. 12,500 km
Answer : C

32. Which of the following statements prove(s) that the earth Is spherical?
The Sun rises and sets at different lines in different places.
The shadow cast by the earth on the moon during the lunar eclipse is always circular.
Pictures taken from high alti
A. Only 1
B. 2 and 3
C. I, 2 and 3
D. Only 2
Answer : C

33. What is the time difference for every degree of longitude?
A. Eight minutes
B. Ten minutes
C. Four minutes
D. Twelve minutes
Answer : C

34. 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

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

36. The atmospheric� pressure on the surface of Venus is more than__ times the atmospheric pressure of the Earth.
A. 90
B. 80
C. 50
D. 100
Answer : A

37. Which of the following planets is called 'blue planet'?
A. Venus
B. Earth
C. Mars
D. Uranus
Answer : B

38. Which of the following is known as 'King of Planets'?
A. Earth
B. Jupiter
C. Mercury
D. Venus
Answer : B

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

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

41. What proportion of the mass of the earth does the mass of the Moon equal?
A. 1/81
B. 1/18
C. 1/27
D. 1/72
Answer : A

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

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

44. Period of sunspot cycle is
A. 11 years
B. 15 years
C. 21 years
D. 33 years
Answer : A

45. What is the direction of rotation of the earth on its axis?
A. East to West
B. South to North
C. North to South
D. West to East
Answer : D

46. Nearest star from the earth after Sun is
A. Proxima Centaury
B. Alfa Centaury
C. Dog Star
D. Constellation
Answer : A

47. 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

48. How much time does earth take in making one rotation on its axis with respect to a fixed star at infinite distance?
A. 23 hours 56 minutes
B. 24 hours
C. 23 hours 46 minutes
D. 24 hours 4 minutes
Answer : A

49. What is a narrow waterway separating two bits of land called?
A. A bay
B. A gulf
C. A strait
D. An isthmus
Answer : C

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