General Science Practice Question and Answer

Q:

The metal that is usually extracted from sea water is

1931 0

  • 1
    Ca
    Correct
    Wrong
  • 2
    Na
    Correct
    Wrong
  • 3
    K
    Correct
    Wrong
  • 4
    Mg
    Correct
    Wrong
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Answer : 4. "Mg"

Q: The human heart is 1925 0

  • 1
    Neurogenic heart
    Correct
    Wrong
  • 2
    Myogenic heart
    Correct
    Wrong
  • 3
    Pulsating heart
    Correct
    Wrong
  • 4
    Ampullary heart
    Correct
    Wrong
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Answer : 2. "Myogenic heart"
Explanation :

Answer: B) Myogenic heart Explanation: Hearts are of several types. In some invertebrates the heart is simulated by the nervous system to do its work. Such hearts are called Neurogenic hearts. The Human heart is myogenic. i.e, it recieves the stimuli for contraction from the muscular node called sinu-auricular node or pace maker.

Q:

How much carbon does steel contain? 

1922 0

  • 1
    0.1% – 1.5%
    Correct
    Wrong
  • 2
    7 – 10%
    Correct
    Wrong
  • 3
    10 – 50%
    Correct
    Wrong
  • 4
    Zero
    Correct
    Wrong
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Answer : 1. "0.1% – 1.5%"

Q:

Which of the following metals is used in spacecraft to tolerate high temperatures?

1920 0

  • 1
    Fe
    Correct
    Wrong
  • 2
    Ti
    Correct
    Wrong
  • 3
    Ni
    Correct
    Wrong
  • 4
    Pb
    Correct
    Wrong
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Answer : 2. "Ti"

Q:

When ice melts, its

1915 0

  • 1
    Volume increases
    Correct
    Wrong
  • 2
    Volume decreases
    Correct
    Wrong
  • 3
    Volume and mass both decrease
    Correct
    Wrong
  • 4
    Volume decreases while mass increases
    Correct
    Wrong
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Answer : 2. "Volume decreases "

Q:

The oesophagus and lining of the mouth are also covered with   

1908 0

  • 1
    Squamous epithelium
    Correct
    Wrong
  • 2
    Ciliated epithelium
    Correct
    Wrong
  • 3
    Columnar epithelium
    Correct
    Wrong
  • 4
    Glandular epithelium
    Correct
    Wrong
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Answer : 1. "Squamous epithelium "

Q:

Hybridization is

1900 0

  • 1
    downward movement of water through soil
    Correct
    Wrong
  • 2
    a process of tilling the land
    Correct
    Wrong
  • 3
    decayed vegetable matter
    Correct
    Wrong
  • 4
    cross-fertilization between two varieties
    Correct
    Wrong
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Answer : 4. "cross-fertilization between two varieties "

Q:

Which of the following is used as retardant in nuclear reactor?

1899 0

  • 1
    Thorium
    Correct
    Wrong
  • 2
    Graphite
    Correct
    Wrong
  • 3
    Radium
    Correct
    Wrong
  • 4
    Ordinary water
    Correct
    Wrong
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Answer : 2. "Graphite"

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