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General Science MCQ

General Science MCQ Practice

Practice General Science questions with instant scoring, correct answer highlighting, detailed solutions and first-click AI explanation caching for missing explanations.

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Q. 4001
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Which of the following computing technology does not represent data as bite?
  • A Artificial intelligence
  • B Cloud computing
  • C Quantum computing
  • D Virtual reality
Correct Option: C  [ Quantum computing ]
In Quantum computing, "Qubits" are used to represent data as they can exist in multiple states simultaneously due to the principles of quantum superposition.
Q. 4000
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When an iron nail gets rusted, iron oxide is formed.
  • A without any change in the weight of the nail.
  • B with decrease in the weight of the nail.
  • C with increase in the weight of the nail.
  • D without any change in colour or weight of the nail.
Correct Option: C  [ with increase in the weight of the nail. ]
Rust is composed of iron oxide, which forms as a result of the reaction between iron, oxygen, and water.
Q. 3921
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An endoscope is used by a physician to view the internal parts of a body organ. It is based on the principle of:
  • A refraction of light
  • B re?ection of light
  • C total internal re?ection of light
  • D dispersion of light
Correct Option: C  [ total internal re?ection of light ]
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Q. 3920
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A piece of ice is ?oating in a beaker containing water. When whole of the ice melts:
  • A the level of water will come down.
  • B the level of water will come up.
  • C the level of water will first rise and then fall.
  • D the level of water will remain the same.
Correct Option: D  [ the level of water will remain the same. ]
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Q. 3919
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A man inside a moving train tosses a coin, the coin falls behind him. The train is moving:
  • A forward with a uniform speed
  • B backward with a uniform speed
  • C forward with deceleration
  • D forward with acceleration
Correct Option: D  [ forward with acceleration ]
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Q. 3918
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A fan produces a feeling of comfort during hot weather because:
  • A fan supplies cool air
  • B our body radiates more heat in air
  • C conductivity of air increases
  • D our perspiration evaporates rapidly
Correct Option: D  [ our perspiration evaporates rapidly ]
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Q. 3917
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Rainbow is formed due to a combination of:
  • A refraction and absorption
  • B dispersion and diffraction
  • C refraction and scattering
  • D dispersion and total internal re?ection
Correct Option: D  [ dispersion and total internal re?ection ]
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Q. 3916
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What does the term Dolby B or Dolby C printed on tape recorders and other sound systems refer to?
  • A frequency modulated system
  • B amplitude modulated system
  • C noise reduction circuit
  • D both DC and AC power can be used
Correct Option: C  [ noise reduction circuit ]
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Q. 3915
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When a ship ?oats on water:
  • A it displaces no water
  • B the mass of water displaced is equal to the mass of the ship
  • C the mass of water displaced is lesser than the mass of the ship
  • D the mass of water displaced is greater than the mass of the ship
Correct Option: B  [ the mass of water displaced is equal to the mass of the ship ]
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Q. 3914
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A car is moving on a road and rain is falling vertically. Select the correct answer:
  • A The rain will strike the wind screen only
  • B The rain will strike the front screen only
  • C The rain will strike both the screens
  • D The rain will not strike any of the screens
Correct Option: B  [ The rain will strike the front screen only ]
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