Science GK Practice Question and Answer

Q:

Electricity is generated when the drivers rotate between the magnetic fields?

1170 0

  • 1
    Moving
    Correct
    Wrong
  • 2
    stable
    Correct
    Wrong
  • 3
    Both static and dynamic
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 1. "Moving"
Explanation :

In a generator, a rotating magnetic field is used to produce electrical energy. When a conductor, such as a wire, moves through a magnetic field, a voltage is induced across the conductor. This is known as electromagnetic induction, and it is the fundamental principle behind how generators work.

Q: What among following is used to produce artificial rain ? 1941 0

  • 1
    copper oxide
    Correct
    Wrong
  • 2
    carbon monoxide
    Correct
    Wrong
  • 3
    silver iodide
    Correct
    Wrong
  • 4
    silver nitrate
    Correct
    Wrong
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Answer : 3. "silver iodide"

Q: Aspirin is 1475 0

  • 1
    acetyl salicylic acid
    Correct
    Wrong
  • 2
    sodium salicylate
    Correct
    Wrong
  • 3
    methyl salicylate
    Correct
    Wrong
  • 4
    ethyl salicylate
    Correct
    Wrong
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Answer : 1. "acetyl salicylic acid"

Q: Who is regarded as father of modern chemistry ? 1847 0

  • 1
    Ruterford
    Correct
    Wrong
  • 2
    Einstein
    Correct
    Wrong
  • 3
    Lavoisier
    Correct
    Wrong
  • 4
    C V Raman
    Correct
    Wrong
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Answer : 3. "Lavoisier"

Q: The term PVC used in the plastic industry stands for 1608 0

  • 1
    polyvinyl choloride
    Correct
    Wrong
  • 2
    polyvinyl carbotate
    Correct
    Wrong
  • 3
    phosphor vanadiu chloride
    Correct
    Wrong
  • 4
    phosphavinyl chloride
    Correct
    Wrong
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Answer : 1. "polyvinyl choloride"

Q: What is a mixture of potassium nitrate powdered charcoal and sulphur called? 1461 0

  • 1
    paint
    Correct
    Wrong
  • 2
    aluminium
    Correct
    Wrong
  • 3
    brass
    Correct
    Wrong
  • 4
    gun powder
    Correct
    Wrong
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Answer : 4. "gun powder"

Q: Which have the maximum density ? 2248 0

  • 1
    water
    Correct
    Wrong
  • 2
    Benzene
    Correct
    Wrong
  • 3
    Ice
    Correct
    Wrong
  • 4
    Chloroform
    Correct
    Wrong
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Answer : 1. "water"

Q:

When the Left Ventricle in the human heart contracts, the blood moves to the 

1628 0

  • 1
    Brain
    Correct
    Wrong
  • 2
    Pulmonary Artery
    Correct
    Wrong
  • 3
    Aorta
    Correct
    Wrong
  • 4
    Lungs
    Correct
    Wrong
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Answer : 3. "Aorta "

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