GATE - Astronomy 1000+ MCQ [Solved] PDF Download

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

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

3. 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

4. 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

5. 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

6. Which planet is called 'Double Planet'?
A. Venus
B. Uranus
C. Pluto
D. Earth
Answer : C

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

8. How much time (approximately) does the light from the nearest star to the Sun take in reaching the earth?
A. 4.3 seconds
B. 4.3 years
C. 4.3 minutes
D. 4.3 hours
Answer : B

9. Presently the farthest planet from the Sun is _____.
A. Pluto
B. Neptune
C. Uranus
D. Venus
Answer : A

10. On the summer solstice in the Northern Hemisphere which of the hollowing latitudes will have the longest night?
A. 45°S
B. 60°S
C. 60°N
D. 45°N
Answer : B

11. Sun-rays reaches earth in (approximately)
A. 8 seconds
B. 8 minutes
C. 4.3 seconds
D. 1 light year
Answer : B

12. A Light Year measures
A. A unit of velocity
B. A unit of distance
C. A unit of pressure
D. A unit of time
Answer : B

13. 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

14. 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

15. Equatorial diameter of the Earth is __.
A. 12757 km
B. 17257 km
C. 17527 km
D. 17572 km
Answer : A

16. On which date is the Earth in 'perihelion'?
A. January-3
B. June-21
C. July-4
D. December-22
Answer : A

17. 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

18. 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

19. 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

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

21. What is the name of the planet which takes 88 days to make one revolution of the Sun?
A. Venus
B. Mercury
C. Pluto
D. Neptune
Answer : B

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

23. Oldest object in the Solar System is __.
A. Titania
B. Titan
C. Miranda
D. Europa
Answer : C

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

25. 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

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

27. 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

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

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

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

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

33. 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

34. 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

35. Charon' is the satellite of _____.
A. Earth
B. Saturn
C. Pluto
D. Neptune
Answer : C

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

37. 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

38. 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

39. 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

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. 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

42. The visible surface of the sun is known as
A. Chromosphere
B. Sunspots
C. Sun surface
D. Photosphere
Answer : D

43. 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

44. When the Sun is vertically overhead along the Tropic of Capricorn at mid-day
A. days and nights are of equal lengths in the Northern Hemisphere
B. Nights are longer than days in the Southern Hemisphere
C. Days and nights are of equal lengths at the poles
D. Night is equal to 24 hours at the North Pole
Answer : D

45. Nearest star to the earth is _____.
A. Alfa Centaury
B. Sun
C. Proxima Centaury
D. Dog Star
Answer : B

46. 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

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

48. 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

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

50. 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