Science GK Practice Question and Answer

Q:

Whose register is the montrix record?

2879 0

  • 1
    Dangerous foreign species
    Correct
    Wrong
  • 2
    endangered wild species
    Correct
    Wrong
  • 3
    Aquatic places at risk under anthropogenic activities
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 3. "Aquatic places at risk under anthropogenic activities"
Explanation :

The Montreux Record is a register of wetland sites on the List of Wetlands of International Importance where changes in ecological character have occurred, are occurring, or are likely to occur as a result of technological developments, pollution or other human interference. It is maintained as part of the Ramsar List.

Q:

What is the scientific name for common salt?

2830 0

  • 1
    sodium sulfate
    Correct
    Wrong
  • 2
    sodium chloride
    Correct
    Wrong
  • 3
    sodium bicarbonate
    Correct
    Wrong
  • 4
    Ammonium chloride
    Correct
    Wrong
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Answer : 4. "Ammonium chloride"

Q: Which is also called Stranger Gas ? 2748 0

  • 1
    Xenon
    Correct
    Wrong
  • 2
    Neon
    Correct
    Wrong
  • 3
    Argon
    Correct
    Wrong
  • 4
    Nitrous oxide
    Correct
    Wrong
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Answer : 1. "Xenon"

Q: Which have the maximum density ? 2735 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:

Which rays are the latest research for use in medicine and war?

2623 0

  • 1
    X rays
    Correct
    Wrong
  • 2
    Laser rays
    Correct
    Wrong
  • 3
    Gamma rays
    Correct
    Wrong
  • 4
    cathode rays
    Correct
    Wrong
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Answer : 2. "Laser rays"

Q:

Which of the following hitting methods has the highest power factor?

2588 0

  • 1
    heating resistance
    Correct
    Wrong
  • 2
    induction heating
    Correct
    Wrong
  • 3
    Arc heating
    Correct
    Wrong
  • 4
    Dielectric heating
    Correct
    Wrong
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Answer : 1. "heating resistance"
Explanation :

The correct answer is Resistance Heating. Resistance heating is based on the I2R effect and is highly resistive in nature that's why it has the maximum power factor. Electric resistance heating is defined as “the heat produced by passing an electric current through a material that preferably has high resistance”.

Q:

Who propounded the term ecology?

2446 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: Which of the following gas is used in cigarette lighters ? 2436 0

  • 1
    Butane
    Correct
    Wrong
  • 2
    Propane
    Correct
    Wrong
  • 3
    Methane
    Correct
    Wrong
  • 4
    Ethane
    Correct
    Wrong
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Answer : 1. "Butane"

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