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Assertion: Fuel has to be burnt to obtain heat energy.
Reason: The minimum temperature to which a fuel must be heated so that it may catch fire and start burning is known as ignition temperature.CorrectIncorrect
Assertion: The major constituent of biogas is methane.
Reason: Biogas is produced by the aerobic degradation by animal wastes like cow ding in the presence of water.CorrectIncorrect
Biogas is formed in theCorrectIncorrect
Biogas is a better fuel than animal dung cake becauseCorrectIncorrect
Most of the sources of energy we use represent stored solar energy. Which of the following is not ultimately derived from the Sun’s energy?CorrectIncorrect
The working fluid in ocean thermal power plant isCorrectIncorrect
Ocean thermal energy is produced due toCorrectIncorrect
A device in which electricity is produced by the process of controlled nuclear fission reaction is calledCorrectIncorrect
India exploded her first underground nuclear device atCorrectIncorrect
Fusion reaction is also known asCorrectIncorrect
A good fuel should possessCorrectIncorrect
Geothermal energy isCorrectIncorrect
Tidal energy is harnessed by constructing a dam acrossCorrectIncorrect
The variety of coal which has the highest car-bon contentCorrectIncorrect
Dead organisms are transformed into petroleum and natural gas inCorrectIncorrect
Which of the following is not a bio mass energy source?CorrectIncorrect
The main constituent of CNG isCorrectIncorrect
Hydropower plant are located in theCorrectIncorrect
The use of reflector in the solar cooker is toCorrectIncorrect
Solar cells are made ofCorrectIncorrect
A solar cooker may not cook food if.CorrectIncorrect
Which of the following problem is associated with a burning of coal?CorrectIncorrect
Assertion: Wind energy farms cannot be established every where.
Reason: The wind energy farms can be established only at those places where wind blows for most part of the year.CorrectIncorrect
Assertion: Coke is a better fuel than coal.
Reason: Burning of coke cause air pollution.CorrectIncorrect
Unit of calorific value of a substance isCorrectIncorrect
The material used for interconnection the solar cells in the solar panel isCorrectIncorrect
A solar panel is made by combining in an arrangementCorrectIncorrect
Tidal energy is a farm of energy obtained from theCorrectIncorrect
One major problem in harnessing nuclear energy isCorrectIncorrect
Which of the following is not an example of a bio-mass energy?CorrectIncorrect