Fuel

Q. Name any four ways to control vehicular air pollution.

Q.

What are the advantages of renewable sources of energy?

Q.

Which of the following is a disadvantage of most of the renewable energy sources?

1. High running cost

2. Unreliable supply

3. Highly polluting

4. None of these

Q.

Which of the following is not a bio-energy source?

1. Wood

2. Gobar gas

3. Nuclear energy

4. Coal

Q.

Which radiation in sunlight, causes a heating effect?

Q.

Choose the correct statement.

1. Sun can be taken as an inexhaustible source of energy.

2. There is infinite storage of fossil fuel inside the earth.

3. Hydro and wind energy are a non-polluting sources of energy.

4. Waste from a nuclear power plant can be easily disposed off.

Q.

Which of the following is a conventional source of energy?

1. LPG, Petrol, CNG

2. Diesel, Electricity

3. Wood, Dung Cakes, Coal and Kerosene

4. All Of These

Q.

Hydro power plants converts _______ energy of falling water into________.

1. potential, electricity

2. kinetic, electricity

3. thermal, electricity

4. solar, thermal energy

Q. Assertion: Intensive exercise leads to muscle cramps.
Reason: Ethanol is produced as a result of anaerobic respiration.

1. Both A and R are true and R is the correct explanation of A
2. Both A and R are true but R is not a correct explanation of A
3. A is true but R is false
4. A and R are false

Q.

Name any two non-renewable resources?

Q.

Why is biomass renewable?

Q. Which of the following statement/s hold true about biofuels?

1. It is designed to replace fossil fuels.
2. It is produced by crops.
3. It is a non-renewable source of energy.
4. It releases carbon monoxide into the atmosphere.

Q. Ethanol blended with petrol reduces pollution.

1. True
2. False

Q. Fermentation of the by-product of which of the following crops results in the production of a smokeless fuel ethanol?

1. 
2. 
3. 
4. 

Q. Which of the following is believed to be the fuel for future?

1. Diesel
2. Hydrogen gas
3. Petrol
4. Kerosene

Q.

What is the use of an oxidizer in Rocket Engines?

Q.

What is the basic principle of harnessing solar energy?

Q. Which fossil fuel is conserved:
(b) When we use bicycle for covering short distances instead of a motorbike.

Q.

The fuel used in an atomic pile is

1. uranium

2. lead

3. biogas

4. none of these

Q.

Can biomass replace fossil fuel?

Q.

Distinguish between the following: Conventional and non-conventional sources of energy.

Q. Which of the following is produced by fermenting grape juice with yeast?

1. Wine
2. Kombucha
3. Milk
4. Kefir

Q.

What are the main components of a solar energy system?

1. Panels

2. Inverters

3. Racking

4. Solar battery storage units

5. All of the above

Q. The collective term given to the gas produced by bacteria from organic matter is called .

1. clean gas
2. greenhouse gas
3. biogas

Q. Match the following.

$\begin{array}{cc}\text{Column A}& \text{Column B}\\ \left(a\right)\text{Methane}& \left(i\right)\text{Gaseous fuel}\\ \left(b\right)\text{Ethanol}& \left(ii\right)\text{Future fuel}\\ \left(c\right)\text{Hydrogen gas}& \left(iii\right)\text{Smokeless fuel}\end{array}$

1. a - i, b - iii, c - ii
2. a - i, b - ii, c - iii
3. a - ii, b - iii, c - i
4. a - iii, b - i, c - ii

Q.

What is the best choice of alternative fuel?

Q.

75 (iii) What is biogas

(iv) Give two advantages of biogas

Q.

Which of the following is not a bio-mass source?

1. Gobar gas
2. Wood
3. Nuclear energy
4. Coal

Q. Which of the following fuels are formed by the degradation of biomass?

1. Butane
2. CNG
3. Coal and petroleum
4. Nuclear fuel

Q. In a hydropower plant :

1. electricity is extracted from water
2. water is converted into steam to produce electricity
3. potential energy possessed by stored water is converted into electricity
4. kinetic energy possessed by stored water is converted into potential energy