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RPF Constable General Study Test - 26
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RPF Constable General Study Test - 26
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  • Question 1/10
    1 / -0

    Temperature of distant luminous bodies can be determined by -

    Solutions

    Temperature of distant luminous bodies can be determined by Pyrometers.

     

  • Question 2/10
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    Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in -

    Solutions

    Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in convection.

     

  • Question 3/10
    1 / -0

    The change of focal length of an eye lense is caused by action of the

    Solutions

    The eye lens is composed of a fibrous, jelly-like material. Its curvature can be modified to some extent by the ciliary muscles. The change in the curvature of the eye lens can thus change its focal length. When the muscles are relaxed, the lens becomes thin. Thus its focal length increases. This enables us to see distant objects clearly. When you are looking at objects closer to the eye, the ciliary muscles contract. This increases the curvature of the eye lens. The eye lens then becomes thicker. Consequently, the focal length of the eye lens decreases. This enables us to see nearby objects clearly.

     

  • Question 4/10
    1 / -0

    Name the source from which Aspirin is produced?

    Solutions

    The ancient Egyptians used Willow bark to produce aspirin as a remedy for aches and pains.

     

  • Question 5/10
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    Adding which substance gives blue colour to glass?

    Solutions

    Cobalt oxide is added to glass to gave it blue colour.

     

  • Question 6/10
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    Which of the following is known as power house of Cell ?

    Solutions

    Mitochondria is known as powerhouse of cell .

     

  • Question 7/10
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    The hormone that stimulates heart beat is

    Solutions

    Thyroxine harmone can increase the heart beat,it's principal function is to stimulate the consumption of oxygen and thus the metabolism of all cells and tissues in the body.

     

  • Question 8/10
    1 / -0

    The study of relation of animals and plants to their surroundings is called__________

    Solutions

    Ecology is the study of the relationships between plants, animals, people, and their environment, and the balances between these relationships.

     

  • Question 9/10
    1 / -0

    At which stage in its life cycle does the silkworm yield the fiber of commercial use

    Solutions

    The silkworm is the larva or caterpillar or imago of the domestic silkmoth, Bombyx mori It is an economically important insect, being a primary producer of silk.

     

  • Question 10/10
    1 / -0

    Sphygmomanometer measures the blood pressure in the

    Solutions

    Blood pressure is measured by instrument called sphygmomanometer also called asblood pressure meter,it is used to measure the pressure of blood in Arteries.

     

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