Answer the following questions in brief.
1. State the main function of a fuel
2. Give one example each of solid, liquid and gaseous fuels.
3. Why is biogas regarded as a better fuel than cowdung cakes?
4. Why is CNG called a better green fuel?
5. Name the three main fossil fuels.
6. State two disadvantages of fossil fuels.
Answers
Answer:
1 A fuel is any material that can be made to react with other substances so that it releases energy as heat energy or to be used for work.
2. Solid fuel: Coal and wood are solid fuels. Coal is used in industries and factories while wood is used mostly in homes. Liquid fuel: kerosene and petrol are liquid fuels. ... Gaseous fuel: CNG and LPG are gaseous fuels.
3. Biogas is a better fuel than animal dung cakes because: Burning of animal dung cake causes lot of pollution whereas biogas is a smokeless fuel. The calorific value of animal dung cake is much lower than that of biogas. Animal dung cakes leave residue after burning whereas biogas leaves no residue.
4. CNG is a cost-effective alternative to regular fuel. ... It is known as a “green fuel” because of its inherent benefits to the environment. It is better for the atmosphere, landfills, soil, and it is affordable.
5. fossil fuel
coal, oil, or natural gas. Fossil fuels formed from the remains of ancient plants and animals.
6. Fossil fuels pollute the environment.
Fossil fuels are non-renewable and unsustainable.
Drilling for fossil fuels is a dangerous process.
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Answer:
answer:
Explanation:
1. The function of the fuel system is to store and supply fuel to the engine and cylinder chambers. There, it can be mixed with air, vaporized, and then burned to produce the energy.
2. solid- charcoal
liquid - gasoline
gaseous- coal gas
3.Biogas is a better fuel than animal dung cakes because:i Burning of animal dung cake causes lot of pollution whereas biogas is a smokeless fuel.
4. CNG is a cost-effective alternative to regular fuel. It is domestically sourced and abundant in supply. The more people and businesses that start and continue using CNG for their vehicles, the better it is for the environment and all around.
5. coal , oil and natural gas
6.Fossil fuels pollute the environment
Fossil fuels are non-renewable and unsustainable
Drilling for fossil fuels is a dangerous process
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