Science GK Practice Question and Answer

Q:

Who propounded the term ecology?

2922 0

  • 1
    Charles Darwin
    Correct
    Wrong
  • 2
    Robert Whitaker
    Correct
    Wrong
  • 3
    Arthur Tansley
    Correct
    Wrong
  • 4
    Ernest Hackle
    Correct
    Wrong
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Answer : 4. "Ernest Hackle"

Q: What among following is used to produce artificial rain ? 2891 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: Which one of the following metals does not react with water to produce Hydrogen? 2884 0

  • 1
    Cadmium
    Correct
    Wrong
  • 2
    Lithium
    Correct
    Wrong
  • 3
    Potassium
    Correct
    Wrong
  • 4
    Sodium
    Correct
    Wrong
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Answer : 1. "Cadmium"

Q: The oxide of Nitrogen used in medicine as anaesthetic is ? 2852 0

  • 1
    Nitrogen pentoxide
    Correct
    Wrong
  • 2
    Nitrous oxide
    Correct
    Wrong
  • 3
    Nitric oxide
    Correct
    Wrong
  • 4
    Nitrogen dioxide
    Correct
    Wrong
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Answer : 1. "Nitrogen pentoxide"

Q: The metallurgical process in which a metal is obtained in a fused state is called ? 2850 0

  • 1
    roasting
    Correct
    Wrong
  • 2
    calcinations
    Correct
    Wrong
  • 3
    smelting
    Correct
    Wrong
  • 4
    froth floatation
    Correct
    Wrong
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Answer : 3. "smelting"

Q:

Most commonly used motor in motor generator sets of high capacity?

2819 0

  • 1
    Cage Model Induction Motor
    Correct
    Wrong
  • 2
    synchronous motor
    Correct
    Wrong
  • 3
    DC Compounder Motor
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 2. "synchronous motor"
Explanation :

The tendency nowadays is to use synduction or synchronous motors. The synduction motor resembles an induction motor but runs at synchronous speed.

Q: Oil of vitriol is 2658 0

  • 1
    nitric acid
    Correct
    Wrong
  • 2
    sulphuric acid
    Correct
    Wrong
  • 3
    hydrochloric acid
    Correct
    Wrong
  • 4
    phosphoric acid
    Correct
    Wrong
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Answer : 2. "sulphuric acid"

Q:

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

2656 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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