The 'coolants' which can be used in the reactor of a nuclear power station are
liquid mercury and nitrogen dioxide
liquid sodium and carbon dioxide
liquid ammonia and carbon monoxide
liquid boron and uranium oxide
One MeV of nuclear energy is equivalent to
1.6 x 10-13J
1.6 x 10-19J
1.6 x 10-16J
1.6 x 10-15J
One atomic mass unit (u) is equivalent to an energy of
931 eV
9.31 MeV
1 MeV
931 MeV
The system or device which converts radiant energy of the sun directly into electric energy
Solar cell
Solar cooker
Tidal power plant
Thermal power plant
The fuel which is not used at thermal power plants is :
coal
uranium
natural gas
fuel oil
A non-renewable source of energy is
wood
alcohol
hydrogen gas
The product of petroleum used to drive heavy vehicles like trucks is
petrol
kerosene
diesel
petroleum gas
A good fuel is one which possesses
high calorific value and low ignition temperature
high calorific value and high ignition temperature
high calorific value and moderate ignition temperature
low calorific value and moderate ignition temperature
Which of the following processes release nuclear energy ?
nuclear fission
nuclear fusion
nuclear fission and nuclear fusion
chemical reaction
The source of energy of the sun is :
conversion of hydrogen gas into helium
conversion of carbon fuel into carbon dioxide
burning of hydrogen gas present in the sun
disintegration of uranium into barium and krypton
