Random Questions Part-8

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1)   Tungsten is used for the manufacture of the filament of an electric bulb, because

  • [A] it is good conductor
  • [B] it has very high melting point
  • [C] it is malleable
  • [D] it is economical

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it has very high melting point

2)   Which of the following parts of the sunlight makes the solar cooker hot?

  • [A] Ultra Voilet
  • [B] Red Light
  • [C] Infra Red
  • [D] Cosmic Rays

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Infra Red

3)   The spoon dropped by an astronaut in a satellite will

  • [A] fall to the floor
  • [B] move tangentially away
  • [C] continue to follow the motion of the satellite
  • [D] remains stationary

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continue to follow the motion of the satellite

4)   The density of a gas is maximum at

  • [A] low temperature, low pressure
  • [B] low temperature, high pressure
  • [C] high temperature, low pressure
  • [D] high temperature, high pressure

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low temperature, high pressure

5)   The cause for the Tsunami as deduced by the seismologists, is

  • [A] gravitational pull of the moon
  • [B] low pressure trough in the ocean
  • [C] deformation of sea floor and vertical displacement of water
  • [D] sudden change in the monsoon wind

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deformation of sea floor and vertical displacement of water

6)   Velocity of sound in air does not change with the change of

  • [A] Moisture content in air
  • [B] Pressure of air
  • [C] Temperature of air
  • [D] Wind in the direction of propagation of sound

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Pressure of air

7)   ATM stands for

  • [A] Automated teller machine
  • [B] Automatic tally machine
  • [C] Automated tally mechanism
  • [D] Automatic teller machine

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Automatic teller machine

8)   A color blind person cannot

  • [A] see distant objects
  • [B] distinguish between certain colors
  • [C] see black color
  • [D] have persistence of vision

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distinguish between certain colors

9)   Pipelines in cold countries often burst in winter because

  • [A] water freezes and expands in its volume
  • [B] pipelines expand due to freezing
  • [C] pipelines contract in their volume
  • [D] temperature of ice is less than that of water

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water freezes and expands in its volume

10)   Bolometer is used to measure

  • [A] Frequency
  • [B] Velocity
  • [C] Temperature
  • [D] Wavelength

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Temperature

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