Astronomy 1000+ MCQ with answer for SSC JHT

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

2. 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

3. 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

4. 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

5. Polar Auroras are
A. Quasars
B. b) Pulsar
C. Aurora Borealis
D. White Dwarfstar
Answer : C

6. What is the Southern Cross?
A. Position of the Sun during summer solstice
B. Position of the vertical Sun during winter solstice
C. A star showing the position of the South Pole
D. Point of intersection of Antarctic Circle and the Prime Meridian
Answer : C

7. 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

8. Which one of the following conditions is moat 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

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

10. 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

11. 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

12. In which of the following planets, the Great Red Spot has been the special feature?
A. Jupiter
B. Saturn
C. Mars
D. Venus
Answer : A

13. 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

14. 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

15. The tail of a comet is directed away from the Sun because
A. as the comet rotates around the Sun, the light mass of the comet is pushed away due to the centrifugal force alone
B. as the comet rotates, the lighter mass of the comet is attracted by some star situated in the direction of its tail
C. the radiation emitted by the Sun exerts a radial pressure on the comet throwing its tail away from the Sun
D. the tail of the comet always exists in the same orientation
Answer : A

16. 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

17. Among the following which planet takes maximum time for one revolution around the Sun?
A. Earth
B. Jupiter
C. Mars
D. Venus
Answer : B

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

19. How much time does the earth take in completing one rotation on its axis in relation to sun?
A. 23 hours 56 minutes
B. 24 hours
C. 23 hours 46 minutes
D. 24 hours 4 minutes
Answer : B

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

21. Which planet rotates on its axis from north to south?
A. Uranus
B. Venus
C. Mars
D. Pluto
Answer : A

22. 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

23. Which planet la known as a 'Morning Star' as well as an 'Evening Star'?
A. Venus
B. Uranus
C. Mercury
D. Mars
Answer : A

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

25. 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

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

27. 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

28. 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

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

30. 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

31. 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

32. The date on which the Sun is vertical over the 'Tropic of Cancer' is
A. June-21
B. December-22
C. March-21
D. September-23
Answer : A

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

34. 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

35. Lunar eclipse means
A. Direction or path of the Moon
B. The Moon comes between the Sun and the Earth
C. The Earth comes in between the sun and the Moon and the centres of all the three come on the same straight line
D. The average angle made by a line drawn from the Moon to the Earth
Answer : C

36. What do you call a narrow neck oC land that connects two larger landmasses?
A. Peninsula
B. Isthmus
C. Cape
D. Strait
Answer : B

37. The study of universe on grand scale is called.
A. Cosmology
B. Astronomy
C. Astrology
D. Exbiology
Answer : A

38. 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

39. 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

40. 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

41. Which star la called the brightest star (Dog star)?
A. Sirius
B. Proxima Centaury
C. Orion
D. Pole Star
Answer : A

42. 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

43. When does the Vernal Equinox occur?
A. December 25
B. March 21
C. February 28
D. January 14
Answer : B

44. 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

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

46. 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

47. Which of the following statements best describes longitudes?
A. An imaginary line on the earth's surface joining the north and south pole
B. The angular distance east or west of the Greenwich Meridian
C. The distance of place east or west of the Greenwich Meridian
D. The position of a place on the Earth surface with reference to the Prime Meridian
Answer : B

48. 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

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

50. 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