Science GK Practice Question and Answer

Q:

Mechanical energy is converted into electrical energy by

1224 0

  • 1
    transformer
    Correct
    Wrong
  • 2
    Ammeter
    Correct
    Wrong
  • 3
    Galvanometer
    Correct
    Wrong
  • 4
    Dynamo
    Correct
    Wrong
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Answer : 4. "Dynamo"

Q:

Can bats fly in the dark as they get help?

1203 0

  • 1
    Ultraviolet wave
    Correct
    Wrong
  • 2
    Ultrasonic wave
    Correct
    Wrong
  • 3
    Radiation
    Correct
    Wrong
  • 4
    Special retina
    Correct
    Wrong
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Answer : 2. "Ultrasonic wave"

Q:

By which process oil is converted into Vegetable Ghee?

1197 0

  • 1
    Hydrogenation
    Correct
    Wrong
  • 2
    Distillation
    Correct
    Wrong
  • 3
    Oxidation
    Correct
    Wrong
  • 4
    Reduction
    Correct
    Wrong
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Answer : 1. "Hydrogenation"

Q:

What causes molybdenum deficiency?

1190 0

  • 1
    Whip tail in cauliflower
    Correct
    Wrong
  • 2
    Hot disease in tomato
    Correct
    Wrong
  • 3
    Lemon yellow yellow stain disease
    Correct
    Wrong
  • 4
    All these
    Correct
    Wrong
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Answer : 1. "Whip tail in cauliflower"

Q:

Solute can be separated from solution?

1186 0

  • 1
    filtration
    Correct
    Wrong
  • 2
    evaporation
    Correct
    Wrong
  • 3
    Decantation
    Correct
    Wrong
  • 4
    sedimentation
    Correct
    Wrong
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Answer : 2. "evaporation"

Q:

Nucleopolyhedro virus (NPV) is used in biological control?

1186 0

  • 1
    For gram bee borer
    Correct
    Wrong
  • 2
    For paddy-scented bug
    Correct
    Wrong
  • 3
    For sugarcane pyrilla
    Correct
    Wrong
  • 4
    For all these
    Correct
    Wrong
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Answer : 1. "For gram bee borer"

Q:

Which substance is added to make natural rubber hard and bouncy?

1184 0

  • 1
    Petrol Jelly
    Correct
    Wrong
  • 2
    sulfuric acid
    Correct
    Wrong
  • 3
    sulfur
    Correct
    Wrong
  • 4
    Sponge
    Correct
    Wrong
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Answer : 3. "sulfur"

Q:

Which of the following gas is not present in the atmosphere?

1182 0

  • 1
    Nitrogen
    Correct
    Wrong
  • 2
    Helium
    Correct
    Wrong
  • 3
    Chlorine
    Correct
    Wrong
  • 4
    Krypton
    Correct
    Wrong
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Answer : 3. "Chlorine"

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