Q.51)-In which form is the supplied heat energy stored during change in temperature of substances?
  • Heat energy
  • Kinetic energy
  • Potential energy
  • Both kinetic and potential energy
Q.52)-Gas thermometers are more sensitive than liquid thermometer because the gases
  • Have larger coefficient of expansion
  • Are lighter
  • Have low specific heat
  • Have high specific heat
Q.53)-What changes will happen to a bowl of ice and water kept at exactly zero degree celsius
  • All ice will melt
  • All water will become ice
  • No change will happen
  • Only some ice will melt
Q.54)-The temperature of boiling water in a steam engine may be high because
  • There aer dissolved substances in water
  • There is low pressure inside the boiler
  • There is high pressure inside the boiler
  • The fire is at very high temperature
Q.55)-Which of the following instruments is used to measure humidity?
  • Kata thermometer
  • Anemometer
  • Sling psychrometer
  • Clinical thermometer
Q.56)-What is triple point of water
  • 273.16K
  • 273.15K
  • 00C
  • 1000C
Q.57)-The freezing point of water
  • 30C
  • 50C
  • 00C
  • 40C
Q.58)-Lake freeze in cold countries in winter, leaving the water underneath at
  • 00C
  • 00F
  • 40C
  • 40F
Q.59)-Why boiling point of water decrease with increase in altitude
  • Low temperature
  • Low atmospheric pressure
  • High temperature
  • High atmospheric pressure
Q.60)-Why clouds float in atmosphere?
  • Low pressure
  • Low density
  • Low viscosity
  • Low temperature