61. What is the color of Black box used in aeroplanes?
PSC GENERAL SCIENCE QUESTIONS AND ANSWERS
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2. General Science Chemistry
3. General Science Biology
4. General Science Zoology
5. General Science Questions and Answers
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(a) Yellow (b) Black
(c) Orange (d) Blue
Answer: (c )
62. In binary number system, a group of four bits is known as
(a) byte (b) nibble
(c) hexadecimal (d) decimal
Answer: ( b)
63. Principle behind Hydrogen bomb is
(a) Nuclear Fission
(b) Nuclear Fusion
(c) Nuclear Transformation (d) Gamma decay
Answer: ( b)
64. Radio isotope used in carbon dating process is
(a) Carbon-15 (b)
Carbon-18
(c) Carbon-13 (d) Carbon-14
Answer: (d )
65. What is the half life of Carbon -14?
(a) 5760 years (b)
5670 years
(d) 4670 years (d) 4760 years
Answer: (a )
66. Who is the father of Nuclear Physics?
(a) Homi J Bhabha (b)
JJ Thompson
(c) James Chadwick (d) Rutherford
Answer: ( d)
67. Who is the father of Indian Space Research?
(a) Dr.APJ Abdul kalam
(b) Homi J Bhabha
(c) Vikram Sarabhai (d) CV Raman
Answer: (c )
68. IC Chip used in computers is made using
(a) Silver (b) Lead
(c) Chromium (d) Silicon
Answer: ( d)
69. Einstein was awarded Nobel Prize for
(a) Special Theory of
Relativity
(b) General Theory of Relativity
(c) Brownian Movement
(d) explaining Photoelectric Effect
Answer: (d )
70. Filament of electric bulb is made by using
(a) Iron (b) Aluminium
(c) Tungsten (d) Silicon
Answer: (c)
71. Which colored light is scattered most?
(a) Violet (b) Blue
(c) Red (d) Green
Answer: ( a)
72. Sound waves travel faster in
(a) Water (b) Air
(c) Vacuum (d) Steel
Answer: (d )
73. In which year CV Raman got Nobel Prize for Physics?
(a) 1920 (b) 1925
(c) 1930 (d) 1935
Answer: ( c)
74. Light from the sun reaches earth in ______ seconds.
(a) 500 (b) 550
(c) 575 (d) 600
Answer: (a )
75. What is the velocity of light in vacuum?
(a) 3x109 m/s (b)
2x109m/s
(c) 3x 108 m/s (d) 2x108 m/s
Answer: (c )PSC GENERAL SCIENCE QUESTIONS AND ANSWERS
1. General Science - Physics
2. General Science Chemistry
3. General Science Biology
4. General Science Zoology
5. General Science Questions and Answers
Related Post
1. PSC CURRENT AFFAIRS-2015 (2000 FACTS)---> Click here
2. PSC PREVIOUS / SOLVED QUESTION PAPERS ---> Click here
3. PSC GENERAL KNOWLEDGE QUESTIONS AND ANSWERS ---> Click here
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