General Science GK Questions for Competitive Exams- A Must Read Questions 2022

Updated December 20, 2022

Here we present you the selective Science GK questions with answers for numerous competitive examinations like Banking, Railway, UPSC and State PCS exams, SSC exams, to name a few. Most of these questions have been asked in competitive exams and most probably it would be asked again in other competitive exams. So, our endeavor is to present you with the most important science gk questions in the best possible way which could help you in achieving your desired goals.

Along with presenting these questions, our team wishes you all the best for your upcoming exams. So, do practice with general science gk questions being featured on this page for better results in exams and try to solve these questions yourself with the help of answers and check your performance.

 1. Rate of growth of the plant is measured by which instrument?

Answer: Auxanometer

2. ‘Energy of the Sun’ concept discovered by which scientist?

Answer:  Hans Selye

3. What is the best source of Protein?

Answer:  Soybean

4. A historical victory achieved by a Spacecraft which got Mars on its First try?

Answer: Mangalyaan (Developed by ISRO, launched on 5 November 2013, Reached – 24 September 2014)

5. What is the name of the tube which connects the middle ear with the throat?

Answer: Eustachian tube

6. By which Cotton fibers are made?

Answer: Cellulose

7. ‘Mechanical Clock’ made by whom?

Answer: Isaac Newton

8. Basically the heavy water is used by which type of industries?

Answer: Nuclear Power Generation plants

9. Splitting of light into its constituent colors is known as what?

Answer: Dispersion

10. To measure the Humidity in air, which instrument is used?

Answer: Hydrometer

11. In our solar system the MARS is fourth planet according to sequences but how many moons Planet ‘MARS’ has?

Answer: 2

12. What is the speed of Earth around sun?

Answer: 30 km/sec

13. What is the name of NASA Mars Rover and when it was landed on MARS?

Answer:  Curiosity (Launched on November 26, 2011, Landed on MARS – 6th August 2012)

14. What is the purest form of Iron?

Answer: Wrought Iron

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15. Who achieved the discovery of ‘Vitamin C’?

Answer: Albert Szent

16. For the cultivation, name the crop required of water-logging?

Answer: Rice

17. The ‘Concept of Inertia’ was developed by?

Answer: Galileo

18. The BrahMos Missile was developed by which country?

Answer:   Developed with Joint venture of India and Russia

19. Electromagnetic Field concept was observed and discovered by whom?

Answer: James Hargreaves

20. Which gas is most popular as laughing gas?

Answer: Nitrous oxide

21. One Horsepower (1 HP) is equivalent to approximately?

Answer:  746 Watts

22. Which was the first satellite of India, go into the orbit?

Answer:  Aryabhata

23. In human body ‘Vitamin K’ is necessary for what?

Answer: Formation of Prothrombin

24. Who discovered the ‘Modern Anthropology’?

Answer: Frederick Sanger

25. ‘White Revolution’ is related to what?

Answer: Milk Production

26. A very successful invention ‘Liquid Oxygen’ discovered by whom?

Answer: Dewar

27. What is the radiant energy of the sun is transmitted?

Answer: Short waves

28. What is the chemical formula of ‘Sodium Hydroxide’?

Answer: NAOH

29. Planet ‘Uranus’ was discovered by whom?

Answer: Hideki Yukawa

30. The Folded Earth book was written by?

Answer: Anuradha Roy

31. Barometer was invented by?

Answer: F. Banting

32. Which rays is very helpful in Long distance photography?

Answer: Infra-Red rays

33. In India, who laid the foundation of Nuclear Science?

Answer: Homi J. Bhabha

34. In Computer, what is the full form of UPS?

Answer: UPS = Uninterruptable Power Supply

35. Which city is built on more than 100 islands?

Answer: Venice (capital of northern Italy’s Veneto region)

36. Name the scientist who’s discovered the ‘Fahrenheit Scale’?

Answer: Fahrenheit

37. Name of vegetable which is also known as a flower?

Answer: Broccoli

38. Until in 1930, what was the highest structure in the world?

Answer: Eiffel Tower

39. Highest electrical conductivity found in which element?

Answer: Silver

40. Thermometer made first by?

Answer: Gauss

41. When India Supercomputer ‘PARAM 10000’ was unveiled?

Answer: In 1998

42. ‘Foundations of Biology’ concept given by whom?

Answer: Jean Piaget

43. Planet Jupiter has how many moons?

Answer: Jupiter has at least 67 known moons

44. Soda water contains what?

Answer: Carbon dioxide

45. Stainless Steel invented by whom?

Answer: Harvey

46. Which planet is commonly known as Dwarf Planet?

Answer: Pluto

47. In 1911 ‘Georges Claude’ invented what?

Answer: B

48. As of November 2015, which country have most of supercomputers?

Answer: USA (199 Supercomputers)

49. Name the suitable material for purify the water?

Answer: Zeolites

50. Fraction of volume of ice seen outside when immersed in water?

Answer: 10.5%

51. IRADIAN is

Answer: 57.3 degree

52. Black hole is an object to be found

Answer: in the sky

53. Special Theory of Relative was proposed in

Answer: 1905

54. Hasdo Valley in Chhattisgarh is famous for

Answer: Coal mines

55. The pollutants which move downward with percolating groundwater are called

Answer: Leachates

56. The working of a rockets based on the principle of:

Answer: Conservation of momentum

57. Exchange particle in Quark-Quark Interaction

Answer: Gluon

58. Celsius and Fahrenheit show the same temperature at

Answer: 40

59. “Optical Phenomenon” in the fringe pattern of CD is

Answer: Interference

60. The invention of Electric Flat Iron was successfully by?

Answer: H. C. Urey

61. The disease ” bronchitis ” is associated with:

Answer: Lungs

62. Which colour indicate Highest Temperature?

Answer: Dull red

63. Persons sitting in an artificial satellite of the earth have:

Answer: Zero weight

64. Light Year is

Answer:  the distance traveled by light in one year

65. Liquefied petroleum gas (LPG) is mainly a mixture of

Answer: propane and butane

66. The Ozone layer lies in the

Answer: Stratosphere

67. Most of the light rays inside a tube -light is in the form of

Answer: ultra -violet light

68. Which is the alkalodid that contains in cola drinks?

Answer: Caffeine

69. The device used for detecting even feeble current:

Answer: Galvanoscope

70. Anemometer is an instrument used for measuring

Answer: Wind speed

71. Due to contraction of eyeball, a long-sighted eye can see only

Answer: farther objects which is corrected by using concave lens

72. Which one among the following is not correct about Down’s syndrome?

Answer: Effected individual has early ageing

73. Insects that can transmit diseases to human are referred to as

Answer: vectors

74. Which of the following diseases are transmitted from one person to another?

Answer: AIDS, Hepatitis B & Syphilis

75. One of the occupational health hazards commonly faced by the workers of ceramics, pottery and glass industry is

Answer: silicosis

76. The anti-malarial drug Quinine is made from a plant. The plant is

Answer: Cinchona

77. To suspect HIV/AIDS in a young individual, which one among the following symptoms is mostly associated with?

Answer: Severe persistent headache

78. Hypertension is the term used for

Answer: Increase in blood pressure

79. Acute lead poisoning is also known as

Answer: Plumbism

80. Which is the vertebrate that has two-chambered heart?

Answer: Fish

81. What is the life span of WBC?

Answer: 2-15 days

82. What is the life span of RBC?

Answer: 120 days

83. There are _____ number of muscles in human.

Answer: 639

84. What is the name of the cells in the body that engulf foreign particles like bacteria?

Answer: Phagocytes

85. _________________ is the longest cell.

Answer: Nerve Cell

86. Which is the largest human cell?

Answer: Ovum

87. The largest cell is ________________

Answer: The egg of an Ostrich

88. What is the physical phase of life called?

Answer: Protoplasm

89. Animal which never drinks water in its entire life?

Answer: Kangaroo rat

90. Oral Rehydration Therapy is recommended for

Answer: Cholera

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