Science GK Practice Question and Answer

Q:

His melting point increasing the pressure on ice?

1318 1

  • 1
    will decrease
    Correct
    Wrong
  • 2
    will increase
    Correct
    Wrong
  • 3
    will be zero
    Correct
    Wrong
  • 4
    will remain unchanged
    Correct
    Wrong
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Answer : 1. "will decrease"

Q:

Thermal conductivity of soil when moisture content in the soil increases?

1303 0

  • 1
    will decrease
    Correct
    Wrong
  • 2
    will increase
    Correct
    Wrong
  • 3
    No change
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "will increase"

Q:

When a man enters a dark room with light, he sees nothing for some time. Later he begins to appear, because?

1303 0

  • 1
    The iris of his eye shrinks
    Correct
    Wrong
  • 2
    The iris of his eye spreads
    Correct
    Wrong
  • 3
    The distance between the lens and retina of his eye increases
    Correct
    Wrong
  • 4
    The length of his eye lens increases
    Correct
    Wrong
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Answer : 1. "The iris of his eye shrinks"

Q:

Who among the following are the inventors of dynamite?

1302 0

  • 1
    Einstein
    Correct
    Wrong
  • 2
    Newton
    Correct
    Wrong
  • 3
    Alfred Nobel
    Correct
    Wrong
  • 4
    Madame Curie
    Correct
    Wrong
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Answer : 3. "Alfred Nobel"

Q:

Richter Scale is used in measuring?

1301 1

  • 1
    Earthquake intensity
    Correct
    Wrong
  • 2
    Wind speed
    Correct
    Wrong
  • 3
    Depth of sea
    Correct
    Wrong
  • 4
    Body temperature
    Correct
    Wrong
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Answer : 1. "Earthquake intensity"

Q:

What is the following statements is incorrect.

1288 0

  • 1
    Photochemical haze always contains ozone.
    Correct
    Wrong
  • 2
    The toxic effect of carbon monoxide is more attractive to hemoglobin than oxygen.
    Correct
    Wrong
  • 3
    Lead is the most dangerous metal pollutant of automobile exhaust
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 4. "None of these"

Q: Rare gases are 1287 0

  • 1
    mono atomic
    Correct
    Wrong
  • 2
    di atomic
    Correct
    Wrong
  • 3
    tri atomic
    Correct
    Wrong
  • 4
    None of above
    Correct
    Wrong
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Answer : 1. "mono atomic"

Q:

An aquatic plant was introduced to the US to remove pollution in Indian aquatic bodies as a troublesome weed. what is its name?

1284 0

  • 1
    hawthorn
    Correct
    Wrong
  • 2
    Egiolps
    Correct
    Wrong
  • 3
    hyacinth
    Correct
    Wrong
  • 4
    Pistia
    Correct
    Wrong
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Answer : 2. "Egiolps"
Explanation :

So the correct answer is 'Eichhornia crassipes' An aquatic plant introduced from America to check pollution turned out to be a troublesome weed in Indian water bodies.

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