TOP-50 Science and Technology Questions for SSC CGL/CPO
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Question 1: What changes will happen to a bowl of ice and water kept at exactly zero degree Celsius ?
a) All ice will melt
b) All water will become ice
c) No change will happen
d) Only some ice will melt
Question 2: Who is known as the father of electricity and magnetism?
a) Michael Faraday
b) Joseph Henry
c) William Gilbert
d) Georg Simon Ohm
Question 3: One of the main reason for depletion of ozone layer in the Earth’s atmosphere is
a) Green house gases
b) Colloidal impurities
c) CFC and halons
d) Rockets and satellite launching vehicles
Question 4: Who was the first person to calculate the circumference of earth?
a) Eratosthenes
b) Copernicus
c) Archimedes
d) Pythagoras
e) None of these
Question 5: Which fuel has highest calorific value?
a) Nitrogen
b) Methane
c) Hydrogen
d) Ethylene
e) None of these
Question 6: What is study of fungus known as?
a) Physiology
b) Phrenology
c) Mycology
d) Biology
Question 7: The force existing between two like charges is known as?
a) Repulsive force
b) Attractive force
c) Electromotive force
d) Gravitational force
e) None of these
Question 8: The force existing between two unlike charges is known as?
a) Repulsive force
b) Attractive force
c) Electromotive force
d) Gravitational force
e) None of these
Question 9: The process of making soap is called
a) Saponification
b) Condensation
c) Water Electrolysis
d) Vaporisation
Question 10: Total memory loss is expressed by
a) Trauma
b) Amnesia
c) Coma
d) None of these
Question 11: Addition of excessive amounts of heat to a lake is referred to as :
a) Refrigeration effect
b) Green House effect
c) Thermal pollution
d) Heat Bloom
Question 12: Virus is a type of software that destroys mainly
a) Data
b) Instruments
c) Programmes
d) Hardwares
Question 13: The Sigmoid Colon is part of
a) anal canal
b) large Intestine
c) ileum
d) small Intestine
Question 14: Noise is measured in
a) Watt
b) REM
c) Centigrade
d) Decibel
Question 15: Ribosome’s main activity is
a) Regulate cell division
b) Regulate cell function
c) Protein synthesis
d) Secretion of hormone
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Question 16: Abel Prize is given for major contribution in
a) Astrophysics
b) Mathematics
c) Genetics
d) Architecture
Question 17: Semiconductor materials are
a) Germanium and Carbon
b) Platinum and Carbon
c) Silicon and Platinum
d) Silicon and Germanium
Question 18: Lens is made up of
a) Pyrex glass
b) Flint glass
c) Ordinary glass
d) Cobalt glass
Question 19: Malaria is transmitted from one person to another by:
a) Aedes Mosquito
b) Culex Mosquito
c) Anopheles Mosquito
d) All of the above
Question 20: Earthquakes are caused by
a) Denudation
b) Tectonism
c) Earth revolution
d) Earth rotation
Question 21: Syrinx is the voice box in
a) Amphibians
b) Reptiles
c) Birds
d) Mammals
Question 22: Who was the inventor of revolver?
a) Edward Hubble
b) Albert Einstein
c) Samuel Colt
d) Avtomat Kalshnikova
Question 23: Onion is modified form of ?
a) Leaf
b) Stem
c) Root
d) None of these
Question 24: When a ring of metal is heated what happens to its hole?
a) Expands
b) Contents
c) It expands or contracts according to its diameter
d) It expands or contracts according to its coefficient
Question 25: Who invented bicycle?
a) Benjamin Franklin
b) John Dunlop
c) Alessandro Volta
d) K Macmillan
e) None of the above
Question 26: The microchip was invented by
a) INSDOC
b) BARC
c) IBM
d) Intel
Question 27: What is USB ?
a) Ultimate Service Bit
b) Universal SentBit
c) Universal Serial Bus
d) Urgent Sent Bit
Question 28: During a period of time you see so many websites and pages exhibited by
a) Status Bar
b) History List
c) Task Bar
d) Tool Bar
Question 29: Who was the Swiss based NRI scientist conferred with Pravasi Bharatiya Samman 2019 in the field of science?
a) Gita Gopinath
b) Rajinder Nath Khazanchi
c) Anil Sooklah
d) Rajendra Joshi
Question 30: Seismography is the science of
a) Mountains
b) Earthquakes
c) Rivers
d) Volcanoes
Question 31: What is the smallest bone in the human body?
a) femur
b) cervical vertebrae
c) stapes
d) nasal bone
Question 32: Which Indian tech company became the world’s third largest employer of people in the technology sector?
a) TCS
b) Infosys
c) Wipro
d) Cognizant
Question 33: Who first postulated that DNA has a structure of double-helix shape ?
a) Newton
b) Edward Jenner
c) Madame and Pierre Curie
d) Watson and Crick
Question 34: Plasma is formed in the stars because of very:
a) high temperature
b) high pressure
c) low pressure
d) low temperature
Question 35: Thermochemical decomposition of organic materials at high temperatures, in the absence of oxygen is called
a) Pyrolysis
b) Thermolysis
c) Caramelization
d) Catagenesis
Question 36: The universal donor blood group is
a) AB
b) BA
c) O
d) A
Question 37: Entomology is the study of
a) Birds
b) Insects
c) Fossils
d) Fungi
Question 38: The instrument used for measuring air pressure is called …..
a) Anemometer
b) Barometer
c) Hygrometer
d) Thermometer
Question 39: How much time does it take for the sunlight to reach the Earth?
a) 9 minutes 21 seconds
b) 8 minutes, 20 seconds
c) 1 nano second
d) 12 minutes
Question 40: The study of stars, planets and space is called_____?
a) Astronomy
b) Aerostatics
c) Aerospace
d) Autonomy
Question 41: Where is the headquarters of the ISRO?
a) Mumbai
b) Delhi
c) Bangalore
d) Hyderabad
Question 42: Which is the lightest metal?
a) Lithium
b) Hydrogen
c) Nickel
d) Rhodium
Question 43: How many successful satellites are in the orbit operated by Indian Regional Navigation Satellite System (IRNSS)
a) 8
b) 5
c) 7
d) 9
Question 44: What is the theme of the 2019 “Indian Science Congress”?
a) Future India : Science & Technology
b) Future World : Science & Technology
c) New India : Science & Technology
d) Favourite of India : Science & Technology
Question 45: Abel Prize is given for major contribution in
a) Astrophysics
b) Mathematics
c) Genetics
d) Architecture
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Question 46: A tissue that connects muscle to bones in humans called
a) Tendon
b) Fibre
c) Axon
d) Femur
Question 47: In machine drawing, a ‘sectional view’ cut portion is shown by
a) diagonal hatching
b) dots
c) cross marks
d) red colour
Question 48: Approx, percentage of oxygen in Earth’s atmosphere is
a) 17%
b) 21%
c) 25%
d) 33%
Question 49: The moderator used in a nuclear reactor is
a) Uranium
b) Radium,
c) Ordinary water
d) Graphite
Question 50: Which fuel has highest calorific value?
a) Nitrogen
b) Methane
c) Hydrogen
d) Ethylene
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Answers & Solutions:
1) Answer (C)
2) Answer (C)
3) Answer (C)
4) Answer (A)
5) Answer (C)
6) Answer (C)
7) Answer (A)
8) Answer (B)
9) Answer (A)
10) Answer (B)
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11) Answer (C)
12) Answer (A)
13) Answer (B)
14) Answer (D)
15) Answer (C)
16) Answer (B)
17) Answer (D)
18) Answer (B)
19) Answer (C)
20) Answer (B)
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21) Answer (C)
22) Answer (C)
Samue Colt invented revolver.
23) Answer (B)
24) Answer (A)
25) Answer (D)
26) Answer (D)
27) Answer (C)
28) Answer (C)
29) Answer (D)
30) Answer (B)
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31) Answer (C)
32) Answer (A)
33) Answer (D)
34) Answer (A)
35) Answer (A)
36) Answer (C)
37) Answer (B)
38) Answer (B)
39) Answer (B)
40) Answer (A)
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41) Answer (C)
42) Answer (A)
43) Answer (C)
44) Answer (A)
45) Answer (B)
46) Answer (A)
47) Answer (A)
48) Answer (B)
49) Answer (C)
50) Answer (C)
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We hope this Important Science and Technology Questions for SSC CPO/CGL Exam will be highly useful for your preparation.
