Science GK Practice Question and Answer

Q: Which metal is heaviest ? 1990 0

  • 1
    osmium
    Correct
    Wrong
  • 2
    mercury
    Correct
    Wrong
  • 3
    iron
    Correct
    Wrong
  • 4
    nickle
    Correct
    Wrong
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Answer : 1. "osmium"

Q: Which gas is used in fire extinguishers ? 1966 1

  • 1
    Carbon dioxide
    Correct
    Wrong
  • 2
    Nitrogen oxide
    Correct
    Wrong
  • 3
    Carbon monoxide
    Correct
    Wrong
  • 4
    Sulpher dioxide
    Correct
    Wrong
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Answer : 1. "Carbon dioxide"

Q:

A high speed vehicle honks, so its pitch?

1962 0

  • 1
    is heard as much
    Correct
    Wrong
  • 2
    more audible
    Correct
    Wrong
  • 3
    hearing impaired
    Correct
    Wrong
  • 4
    First less and then more
    Correct
    Wrong
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Answer : 2. "more audible"

Q: Aspirin is 1958 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:

Which of the following is not a greenhouse gas?

1940 0

  • 1
    methane
    Correct
    Wrong
  • 2
    nitrous oxide
    Correct
    Wrong
  • 3
    Sulfur Hexa Fluoride
    Correct
    Wrong
  • 4
    carbon monoxide
    Correct
    Wrong
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Answer : 4. "carbon monoxide"

Q:

Which of the following disease reduces the age of laborers working in coal mine and that disease is called Black Lung disease?

1933 0

  • 1
    Clomgolanosis
    Correct
    Wrong
  • 2
    progressive massive fibrosis
    Correct
    Wrong
  • 3
    mesothelioma
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 1. "Clomgolanosis"
Explanation :

Coal workers' pneumoconiosis (CWP), commonly known as "black lung disease," occurs when coal dust is inhaled. Over time, continued exposure to the coal dust causes scarring in the lungs, impairing your ability to breathe. Considered an occupational lung disease, it is most common among coal miners.

Q:

What is the following is the softest?

1930 0

  • 1
    Alum
    Correct
    Wrong
  • 2
    Diamond
    Correct
    Wrong
  • 3
    Terlium
    Correct
    Wrong
  • 4
    Topaz
    Correct
    Wrong
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Answer : 2. "Diamond"

Q:

Which of the following is not a fuel gas?

1923 1

  • 1
    Water gas
    Correct
    Wrong
  • 2
    Producer gas
    Correct
    Wrong
  • 3
    Laughing gas
    Correct
    Wrong
  • 4
    Marsh gas
    Correct
    Wrong
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Answer : 3. "Laughing gas"

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