1. NOT Gate can be operated by–
(A) Single diode (B) Two diodes
(C) Single Resistor (D) Single Transistor
2. Silicon is a–
(A) Semiconductor (B) Insulator
(C) Conductor (D) Electric Resistor
3. What will be the effect on the resistance of a
semiconductor on increasing its temperature?
(A) Increase (B) Decrease
(C) Unchanged (D) Increase-decrease
4. For which one of the following, ‘Diodes’ are generally used for?
(A) Rectification (B) Amplification
(C) Modulation (D) Filtration
5. What is the unit of the physical quantity, (Radioactive) Activity?
(A) Radian (B) Becquerel
(C) Steradian (D) Kelvin
6. Which of the following is used for regulated electric supply?
(A) Zener diode (B) Junction diode
(C) Gunn diode (D) Tunnel diode
7. Radioactivity is due to
(A) Unstable nucleus (B) Stable nucleus
(C) Stable electronic configuration
(D) On Stable electronic configuration
8. The width of the depletion layer of a p-n junction
(A) Decreases with light doping
(B) Increases with heavy doping
(C) Is independent of applied voltage
(D) Is increased under reverse bias
9. Curie is an unit of
(A) Radioactivity (B) Energy of Gamma rays
(C) Intensity of Gamma rays
(D) Work function
10. Which one among the following components
is used as an amplifying device?
(A) Transformer (B) Diode
(C) Capacitor (D) Transistor
11. Where is a transistor most likely to be found?
(A) Wristwatch (B) Fuse
(C) Hearing aid (D) Fluorescent lamp
12. Which of the following is widely used in making semiconductor chips?
(A) Radium (B) Sodium
(C) Germanium (D) Sulphur
13. Instrument used to measure the wind speed is:
(A) Altimeter (B) Anemometer
(C) Chronometer (D) Dogometer
14. Anemometer is used to measure :
(A) Direction of wind (B) Speed of wind
(C) Pressure (D) Speed of wind and time
15. An instrument used to measure the density of milk is :
(A) Glactometer (B) Lactometer
(C) Calciometer (D) Polarimeter
16. Purity of Milk is measured by :
(A) Hydrometer (B) Lactometer
(C) Thermometer (D) Polarimeter
17. The instrument for measuring the intensity of
earthquakes is called
(A) Ediograph (B) Pantagraph
(C) Ergograph (D) Seismograph
18. Bolometer is used to measure.
(A) Frequency (B) Temperature
(C) Velocity (D) Wavelength
19. The instrument used to see the distant objects on the Earth is
(A) Terrestrial telescope
(B) Astronomical telescope
(C) compound microscope
(D) Simple microscope
20. An instrument used to measure humidity is :
21. An instrument that records earthquakes is
(A) Ergograph (B) Ediograph
(C) Thermograph (D) Seismograph
22. Hydroscope is an instrument that shows changes in :
(A) Sound under water (B) Atmospheric hunidity
(C) Density of liquid (D) Elevation of land
23. Sextant is an instrument used in which of the following?
(A) Gynaecology (B) Navigation
(C) Birth control (D) Medical treatment
24. Device used for the detection and measurement of all types of radiation (Alpha, Beta and Gamma)
(A) Geiger counter (B) Polarimeter
(C) Calorimeter (D) Radiometer
25. Instrument for measuring time is called _____ .
(A) Diagometer (B) Anemometer
(C) Durometer (D) Chronometer
26. Meter in a vehicle that calculates distance covered by the vehicle is called __________.
(A) Speedometer (B) Odometer
(C) Thermometer (D) Kilometre
27. Who Invented Neon Lamp?
(A) Vint Cerf (B) David Chaum
(C) Georges Claude (D) Josephine Cochrane
28. Who Invented water turbine?
(A) Enrico Fermi (B) Adolf Gaston Eugen Fick
(C) Sandford Fleming (D) Benoit Fourneyron
29. Who Invented Electric Stove?
(A) Lloyd Groff Copeman (B) Bartolomeo Cristofori
(C) Leonardo da Vinci (D) Philip Diehl
30. Electric tram was invented by?
(A) Fyodor Pirotsky (B) Arthur Pitney
(C) Firtz Pfleumer (D) Stephen Perry
31. Electric chair was invented by
(A) Alfred P. Southwich (B) Isaac Singer
(C) Murasaki Shikibu (D) Hanaoka Seish?
32. Who invented Rocket?
(A) Rich K Goyle (B) E M Forster
(C) Robert Goddard (D) James Anderson
33. Who invented the contact lens?
(A) Enrico Fermi
(B) Adolf Gaston Eugen Fick
(C) Sandford Fleming
(D) Benoit Fourneyron
34. Who established the foundations of the Quantum theory?
(A) Max Planck (B) Mark Nicholas
(C) Albert Einstein (D) Alfred Hitchcock
35. Who Invented the nuclear reactor?
(A) Enrico Fermi
(B) Adolf Gaston Eugen Fick
(C) Sandford Fleming
(D) Benoit Fourneyron
36. Who invented the Lightning Rod in 1749?
(A) Benjamin Franklin(B) Nikola Tesla
(C) Eli Whitney (D) George Washington
37. Who invented the vacuum pump?
(A) Otto von Guericke
(B) Cai Lun
(C) Melitta Bentz
(D) William Henry Fox Talbot
38. Who discovered television?
(A) Michael Faraday (B) Joseph Henry
(C) Abbe Caselli (D) John Baird
39. Who invented Dynamite?
(A) J B Dunlop (B) Alfred Nobel
(C) James Simons (D) Peter Hargreaves
40. Which of the following was invented by Sir Humphry Davy?
(A) Safety Pin (B) Steam Engine
(C) Safety Lamp (D) X-Rays
41. Who invented Pentium Chip?
(A) C. Kumar Patel (B) Tom Gunter
(C) Vince Emery (D) Vinod Dham
42. Who developed the theory of relativity?
(A) Issac Newton (B) Charles Darwin
(C) Marie Curie (D) Albert Einstein
43. Who invented radar?
(A) Fred Morrison
(B) A. H. Taylor and Leo C. Young
(C) Van Tassel (D) W. K. Roentgen
44. Who discovered the color photography?
(A) Robert Noyce (B) Enrico Fermi
(C) John Logie Baird (D) James Clerk Maxwell
45. Who invented the electric tram?
(A) James Cook (B) William Harvey
(C) Fyodor Pirotsky (D) Robert Boyles
46. Who discovered Uranus?
(A) Sir Isaac Newton
(B) William Henry Fox Talbot
(C) William Herschel (D) Nicolaus Copernicus
47. Who invented Space Pen?
(A) Paul C. Fisher (B) Rudolf Diesel
(C) Wright Brothers (D) Alexander Fleming
48. Who discovered Photon?
(A) George Crum (B) Albert Einstein
(C) Henry Cavendish (D) Humphry Davy
49. Who invented Velcro?
(A) Thomas Edison (B) William Harvey
(C) George de Mestral (D) Robert Boyles
50. Who invented the waterproof raincoat?
(A) Robert Hooke (B) Cai Lun
(C) Charles Macintosh (D) William Harvey
51. Who discovered Neon?
(A) Robert Noyce (B) Enrico Fermi
(C) Morris W. Travers and William Ramsay
(D) Antonio de Ulloa and Charles Wood
52. Who discovered electricity and invented the lightning rod and bifocals?
(A) Kirkpatrick Macmillan
(B) Benjamin Franklin
(C) William Henry Fox Talbot
(D) Sir Alexander Fleming
53. Who invented the hot air balloon?
(A) Montgolfier brothers (B) Wright brothers
(C) Lisitsyn brothers (D) Walton brothers
54. Who invented the thermos flask?
(A) Ray Tomlinson (B) Tim Berners-Lee
(C) William Cullen (D) James Dewar
55. Which of the following is used to measure the pressure?
(A) Hydrometer (B) Aneroid Barometer
(C) Anemomenter (D) Thermometer
56. If a barometer is placed in a ball Jar and air
from it removed slowly then
(A) Level of Mercury increases
(B) Level of Mercury decreases
(C) Level of Mercury remains un changed
(D) Ball Jar burst
57. It is easy to burst a gas field balloon with a
needle than a nail because-
(A) Needle exerts more pressure than a nail on the balloon.
(B) Nail exerts more pressure than the needle on the balloon.
(C) Gas is reactive with a needle.
(D) Nail is longer than a needle.
58. Cooking of Rice is Harder-
(A) Top of Mountains (B) Bottom of the sea
(C) Under the mine (D) Same at everywhere
59. Water boils at low temperature on mountains because-
(A) There is cooling on the Mountains.
(B) Amount of Carbon dioxide is less at mountains.
(C) Atmospheric pressure is low in mountains.
(D) Deficiency of oxygen.
60. Pressure cooker reduces the time required for the cooking because-
(A) Boiliing point of water increases inside cooker.
(B) Boiling point of water decreasses inside cooker.
(C) High pressure makes soft the food.
(D) Heat energy distributed equally.
61. Rice is cooked more quickly in a perssure cooker beacuse:
(A) Water boils at Higher temperature
(B) Less quantity of water is used
(C) It is covered (D) None of these
62. To calculate the pressure exerted by Liquid at
the bottom of the container, which of the following
is not required?
(A) Height of Liquid column
(B) Surface area of the bottom of the container
(C) Density of Liquid
(D) Acceleration due to gravity at the bottom of the container
63. 1 Bar is equal to :
(A) 103 pa (B) 100 pa
(C) 105 pa (D) 104 pa
64. A real gas can act as an ideal gas under
(A) High pressure and low temperature
(B) Low pressure and high temperature
(C) High pressure and high temperature
(D) Low pressure and low temperature
65. The boiling point of water depends upon the
(A) Atmospheric pressure
(C) Density (D) Mass
66. At hill stations, the boiling point of water will be
(A) Same as at sea level
(B) Less than that at sea level
(C) More than that at sea level
(D) Equal to the melting point of ice
67. Vegetables are cooked in lesser time by adding
a pinch of salt while cooking beause
(A) Boiling point of water increases
(B) Latent heat of vaporization of water decreases
(C) Latent heat of vaporization of water increases
(D) Boiling point of water decreases.
68. Hydraulic brakes used in automatic vehicles is
direct virtual application of which law?
(A) Pascal’s law (B) Archemedes’ principle
(C) Newton’s law (D) Boyle’s law
69. Which law/principle states that when a body is
immersed fully or partially in a fluid, it
experiences an upward force that is equal to
the weight of the fluid displaced by it?
(A) Boyle’s law (B) Charles law
(C) Archimedes principle (D) Pascal’s law
70. What is the SI unit of pressure?
(A) Newton (B) Weber
(C) Pascal (D) Henry
71. On which principle does the hydraulic lift works?
(A) Newton’s law (B) Pascal’s law
(C) Archimedes’s law (D) Joule’s law
72. For which of the following game, players
must have the knowledge of Pascal’s law?
(A) Climbing (B) Paragliding
(C) Rafting (D) Scuba diving
73. When the barometer reading dips suddenly, it is an indication of
(A) Bot weather (B) Calm weather
(C) Storm (D) dry weather
74. The density of a gas is maximum at
(A) Low temperature, low pressure
(B) Low temperature, high pressure
(C) High temperature, low pressure
(D) High temperature, high pressure
75. Specific gravity is defined as the ratio of
(A) Denity of the substance to the density of water
(B) Density of the substance to the density of water at 0ºC
(C) Density of water at 4ºC to the density of the substance
(D) Density of the substance to the density of water at 4ºC
76. The density of water is 1 g/cc. This is strictly valid at
(A) 0ºC (B) 4ºC
(C) 25ºC (D) 100ºC
77. if ice floating on water in a vessel melts, the water level in the vessel____.
(A) Increases (B) Does not change
(C) First increases before decreasing
78. What is the unit of relative density?
(A) Kg/m (B) Kg/m2
(C) Kg/m3 (D) It has no unit
79. Which among the following has the maximum density?
(A) Water (B) Ice
(C) Ethylene (D) Acetone
80. Which of the following quantities does not have any unit?
(A) Speed (B) Density
(C) Relative Density (D) Acceleration
81. Humidity is measured by
(A) Hydrometer (B) Hygrometer
(C) Pyrometer (D) Lactometer
82. Amount of water vapor in the atmosphere is measured in terms of
(A) Humidity (B) Droplets
(C) Smog (D) All of the above
83. A wheelbarrow is an example of :
(A) 1st Class lever (B) 2nd class lever
(C) Pully (D) 3rd class lever
84. Lubricant oil is used in vehicles to :
(A) For combustion fuel
(B) To make flow streamline
(C) To increase the friction
(D) To decrease the friction
85. While ascending a hill, the driver of the vehicle keep the gear ratio :
(A) Equal to one (B) Less than one
(C) Greater Than one
(D) Either Greater or equal to one
86. Flywheel is an important part of a steam engine because.
(A) It gives strength to engine
(B) Accelerates the speed of engine
(C) Helps the engine in keeping speed iuniform
(D) Decreases the moment of inertia
87. Which of the following is an example of a cantilever beam?
(A) Diving board (B) Bridge
(C) See-Saw (D) Common Balance
88. A simple Machine
(A) Cannot increase the force
(B) Cannot increase the speed
(C) Cannot increase the wrok
(D) Cannot change the direction of applied force
89. The working principle of a beam balance is the principle of :
(A) Mass (B) Momentum
(C) Couple (D) Moment
90. Electrostatic precipitator is used to control the pollution of :
(A) Air (B) Water
(C) Noise (D) Thermal
91. Knot is a measure of
(A) The speed of ship
(B) The curvature of spherical objects
(C) Solar radiation
(D) Intensity of earthquake shock
92. Vehicle tires are inflated properly
(A) To ensure smooth running.
(B) To allow the vehicle to take more load.
(C) To avoid skidding and to minimize friction
(D) To go fast and save fuel.
93. A photostat machine works on :
(A) Electrostatic image-making
(B) Magnetic image-making
(C) Thermal image-making
(D) Thermal image-making
94. Flight Recorder is technically called:
(A) Dark box (B) Blind box
(C) Black box (D) Altitude meter
95. Superconductors are substances that:
(A) Offer minimal resistance to flow of electric current
(B) Conduct electricity at low temperature
(C) Conduct electricity at high temperature
(D) Offer high resistance to the flow of electric current
96. The abbreviation LHC stands for which machine?
(A) Light Heat Collider (B) Large Hadron Collider
(C) Long Heavy Collider (D) Large High Collider
97. ‘Parsec’ is the unit measurement of
(A) Density of stars (B) Astronomical distance
(C) Brightness of heavenly bodies
(D) Orbital velocity of giant stars
98. Isaac Newton invented____.
(A) Thermometer (B) Reflecting Telescope
(C) Hydraulic Accumulator
99. Name the first Indian who got Nobel Prize in physics.
(A) CK Naidu (B) Rangnath Mishra
(C) Amartya Sen (D) CV Raman
100. Name the first Indian to go into space.
(A) Vidyut Mishra (B) Kaplish Tripathi
(C) Rakesh Sharma (D) Ish Kumar Vaidya
101. What is the unit of the physical quantity “Jerk”?
(A) Meter second (B) Meter per the second cube
(C) Meter per the second square
(D) Meter per second
102. The study of the universe is known as___.
(A) Cosmology (B) Astrology
(C) Seismology (D) Limnology
103. What is the study of the Moon called?
104. One nanometer is equal to _____________ meters.
(A) 10 raised to the power (–4)
(B) 10 raised to the power (–6)
(C) 10 raised to the power (–9)
(D) 10 raised to the power (–10)
105. The first man to go into space was
(A) Roald Amundsen (B) Reynalt Mayor
(C) Robert Peary (D) Major Yuri Gagarin
106. Mass of an object is a _____.
(A) Physical Quantity (B) Fundamental Quantity
(C) Scalar Quantity (D) All options are correct
107. Match the following
Quantity SI Unit
1. Frequency a. Ohm
2. Force b. Hertz
3. Resistance c. Newton
(A) 1 – b, 2 – c, 3 – a (B) 1 – a, 2 – c, 3 – b
(C) 1 – c, 2 – b, 3 – a (D) 1 – b, 2 – a, 3 – c
108. Which is the most suitable unit for expressing nuclear radius?
(A) Micron (B) Nanometer
(C) Fermi (D) Angstrom
109. Surface water of a lake is about to freeze. What
will be the temperature (in ºC) of water at the
bottom of the lake?
(A) 0 (B) -1
(C) 1 (D) 4
110. What is the process of conversion from solid to gas is known as?
(A) Fusion (B) Solidification
(C) Sublimation (D) Condensation
111. Which of the following is not a vector quantity?
(A) Momentum (B) Displacement
(C) Torque (D) Speed
112. Which of the following is not a vector quantity?
(A) Acceleration (B) Electric current
(C) Force (D) Velocity
113. Which of the following pair is INCORRECT?
I. Parsec – Distance
II. Barrel – Liquid
III. Light year – Time
(A) Only III (B) Only I and III
(C) Only II (D) All are correct
114. The substances which reduce friction are called_____.
(A) Irregularities (B) Lubricants
(C) Adhesives (D) Viscous
115. The laws which govern the motion of planets are called ____.
(A) Newton’s Laws (B) Kepler’s Laws
(C) Avogadro’s Laws (D) De Morgan’s Laws