Science GK Practice Question and Answer

Q:

Is the father of 'demonstration method'?

8694 0

  • 1
    John D.V.
    Correct
    Wrong
  • 2
    Daniel Benor
    Correct
    Wrong
  • 3
    A.D. B. Graham
    Correct
    Wrong
  • 4
    Seaman A. Nap
    Correct
    Wrong
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Answer : 4. "Seaman A. Nap"

Q:

What chemical substance is present in bones and teeth, what is it called?

1124 0

  • 1
    calcium chloride
    Correct
    Wrong
  • 2
    calcium borate
    Correct
    Wrong
  • 3
    calcium phosphate
    Correct
    Wrong
  • 4
    calcium sulfate
    Correct
    Wrong
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Answer : 3. "calcium phosphate"

Q:

Who invented television?

1217 0

  • 1
    J.R. L. Baird
    Correct
    Wrong
  • 2
    Macmillan
    Correct
    Wrong
  • 3
    James Watt
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 1. "J.R. L. Baird"

Q:

The function of dynamo is?

851 0

  • 1
    Converting electrical energy into mechanical energy
    Correct
    Wrong
  • 2
    Converting mechanical energy into electrical energy
    Correct
    Wrong
  • 3
    Converting electrical energy into heat
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "Converting mechanical energy into electrical energy"

Q:

By which device is the purity of milk measured?

973 0

  • 1
    manometer
    Correct
    Wrong
  • 2
    Hydrometer
    Correct
    Wrong
  • 3
    Lactometer
    Correct
    Wrong
  • 4
    Fadometer
    Correct
    Wrong
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Answer : 3. "Lactometer"

Q:

How does a red rose appear in green light?

3573 0

  • 1
    yellow
    Correct
    Wrong
  • 2
    Pink
    Correct
    Wrong
  • 3
    Black
    Correct
    Wrong
  • 4
    Red
    Correct
    Wrong
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Answer : 3. "Black"

Q:

When a metal is heated, its density?

1218 0

  • 1
    increases
    Correct
    Wrong
  • 2
    There is no difference
    Correct
    Wrong
  • 3
    decreases
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 3. "decreases"

Q:

What is the lightest metal?

901 0

  • 1
    Lithium
    Correct
    Wrong
  • 2
    Iridium
    Correct
    Wrong
  • 3
    aluminum
    Correct
    Wrong
  • 4
    Osmium
    Correct
    Wrong
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Answer : 1. "Lithium"

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