MCQ 11 Mark
The fuel which is not used at thermal power plants is:
- ACoal.
- ✓Uranium.
- CNatural gas.
- DFuel oil.
Answer
View full question & answer→Correct option: B.
Uranium.
Thermal power plants use only coal, oil or gas as fuel.
50 questions · timed · auto-graded
Thermal power plants use only coal, oil or gas as fuel.
Solar cells are made of semiconductors.
A good fuel should have a high calorific value so that it can give us more heat per unit mass. It should also have a moderate ignition temperature.
Diesel is used to drive heavy vehicles.
Natural gas is a non-renewable source of energy. The others are renewable sources.
In both reactions, neutrons can be produced.
Nuclear fusion reactions are the source of the sun's energy.
Wood has the lowest calorific value among the given fuels.
The sun's energy is derived from the fusion of hydrogen nuclei into helium nuclei.
The world's known coal reserves are expected to last for about 200 years.
Liquid sodium or carbon dioxide gas is used as a coolant.
in both the reactions, heat energy is released owing to the conversion of mass into energy.
Biogas is a renewable source of energy.
Coke cannot be obtained from biomass.
Natural gas is a non-renewable source of energy as it takes thousands of years to form.
Infrared rays make sunlight warm. The warmth of sunlight is used in a solar cooker.
Hydrogen gas has the highest calorific value (150kJ/ g).
Coke is used as a reducing agent in the extraction of metals from their ores.
A special grade of kerosene oil is used as aviation fuel in jet aero planes.
The known reserves of petroleum are expected to last for about 40 years.
Liquefied petroleum gas (LPG) consists mainly of butane, along with smaller amounts of propane and ethane.
One atomic mass unit is equal to 931MeV.
The fuel with the highest calorific value would have less carbon and more hydrogen, because hydrogen has a higher calorific value than carbon.
The burning of fossil fuels produces sulphur dioxide, nitrogen dioxide ancarbon dioxided.
Nuclear energy comes from the nucleus of an atom.
A good fuel should not have a high ignition temperature.
Oxygen is not required for the production of biogas.
A solar water heater receives energy from the sun, but the sun does not appear on a cloudy day. Therefore, a solar water heater does not receive energy on a cloudy day and cannot heat up water.
Liquid sodium and carbon dioxide are used in order to transfer the heat produced in the reactor by fission to the heat exchanger, for converting water into steam.
Fossil fuels are non-renewable sources of energy because they are present in limited amounts on the earth.
The major component of biogas is methane gas. Up to 75 per cent of biogas consists of methane.
Hydropower projects have many adverse affects on the surroundings and the environment.
Natural gas consists mainly of methane.
The energy produced in a nuclear fusion reaction is much more than that produced in a nuclear fission reaction and has not been controlled so far.
The burning of fossil fuels produces acidic gases and large amounts of carbon dioxide and smoke, all of which pollute the environment.
Geothermal energy is obtained by the fission of radioactive materials that are naturally present in the hot rocks inside the earth.
Only nitrogen oxides, sulphur dioxide and carbon dioxide are responsible for acid rain.
The minimum speed of wind should be 15km/h for the satisfactory working of a wind generator.
Nuclear power is a non-renewable form of energy, because nuclear materials are limited and hence we will run out of them one day.
Up to 75 per cent of biogas consists of methane gas, which makes it an excellent fuel.
Atomic energy is considered to be coming from atoms.
A plant sapling takes more than 15 years to grow and mature into a tree.
Fossil fuels take thousands of years to form deep under the earth. Cow dung does not come under this category of fuels.