Fuels

Q.

Hydrogen is a good fuel even then it is not used as a domestic fuel. Why?

Q.

Which fuel can be considered as the most efficient based on the calorific value?

1. Hydrogen

2. CNG

3. Coal

4. Biogas

Q.

Which is a better fuel- coke or coal?

Q.

Fuel formed under the earth's surface by the decomposition of organic matter is called:

1. Biogas

2. Fossil fuel

3. Nuclear fuel

4. Organic fuel

Q.

Fuel formed under the earth's surface by the decomposition of organic matter is called _____.

1. organic fuel

2. biogas

3. fossil fuel

4. under ground fuel

Q.

‘Hydrogen gas which is easily available on the Earth is going to be the next promising fuel’ - Discuss.

Q. When are we going to use $H_2$ as fuel for vehicles?

Q. There are about _____ sugar mills producing energy from bagasse.

1. 15
2. 16
3. 17
4. 18

Q. Fossil fuels are formed from:

1. Volcanic eruptions
2. Remains of dead living organisms
3. Burning of wood
4. Underground water

Q. Which of the following is not a source of biomass fuel?

1. Cow dung
2. Leaves
3. Wood
4. Soil

Q. Which of the following fuels has the highest calorific value?

(a) natural gas
(b) methane gas
(c) hydrogen gas
(d) biogas

Q. Which of the following are examples of fuel?

1. Paper
2. LPG
3. Oxygen
4. Sunlight

Q. Whose gravitational pull causes high tides?

1. Sun
2. Earth
3. Moon
4. Asteroids

Q. Which of the following are examples of fuel?

1. Petrol
2. LPG
3. Diesel
4. All of these

Q. If the momentum of a body is increased 4 times, the kinetic energy will be increased by

1. 2 times
2. 16 times
3. 4 times
4. 8 times

Q. Which among the following is not a good source of energy?

1. Sun
2. Storm
3. River
4. Wind

Q. Which of the following can be considered as fuel?

1. LPG
2. Natural gas
3. Coal
4. Oil
5. Cement
6. Plastic
7. Soil
8. Hydrogen

Q. The molten material mixed with gases in the mantle of the Earth is called_____.

1. core
2. lava
3. geyser
4. magma