Tag: fuels

Questions Related to fuels

Which of the following is most harmful for human body?

  1. CO

  2. $CO _2$

  3. Oxides of nitrogen

  4. Lead compounds


Correct Option: D

Producer gas is not a good fuel because:

  1. it contains $CO$ which is poisonous

  2. it contains $CO _2$

  3. it contains $CO _2$ which does not burn

  4. it contains $N _2$ which does not burn


Correct Option: D
Explanation:

The producer gas is a mixture of nitrogen and carbon monoxide. Two thirds by volume is nitrogen and one third by volume is carbon monoxide. Carbon monoxide is combustible gas in the mixture. Nitrogen is non-combustible. producer gas is not considered as good fuel because it contains Nitrogen which does not burn.


Hence, the correct option is $\text{D}$

Which of the following is an ideal fuel?

  1. Coal

  2. LPG

  3. Petrol

  4. None of these


Correct Option: D
Explanation:

An ideal gas must possess high calorific value, must have a moderate rate of combustion and must be easily available. The calorific values of coal, petrol, LPG are quite less than an ideal gas. The molecules present in an ideal gas obeys the gas laws and follows the Newtons laws of motion.


Hence, the correct option is $\text{D}$

Which one of the following is used as 'clean fuel'?

  1. Petrol

  2. Mineral oil

  3. Methane

  4. LPG


Correct Option: D

The characteristics of a ideal fuel are:

  1. it should release more energy

  2. it should be safe

  3. it should be easily transportable

  4. all of the above


Correct Option: D
Explanation:

Ideal fuel shows the following characteristics:

  • It should be  less expensive,
  • It should be easily  available,
  • It should produce a large amount of heat,
  • It can be  transported  easily
  • It has high calorific value.
  • It should  burns easily in air at a moderate rate.

Hence option D is correct.

Why is CNG a cleaner fuel?

  1. No particulate emission

  2. Releases very less amounts of sulphur and nitrogen oxides

  3. No emission of ash

  4. All of the above


Correct Option: D
Explanation:

C.N.G (compressed natural gas) is a cleaner fuel because it causes less pollution by emitting fewer pollutants like carbon dioxide, carbon monoxide, sulphur dioxide, nitrogen dioxide, particulate matter, unburned hydrocarbons etc.

Ideal fuel has a __________ calorific value.

  1. low

  2. high

  3. moderate

  4. zero


Correct Option: B
Explanation:

Ideal fuel has high calorific value. This ensures that more amount of heat energy is released from the combustion of unit mass of fuel. In other words, a fuel with high calorific value is better than a fuel having low calorific value.

_____ is a better domestic fuel than wood.

  1. CNG

  2. LPG

  3. Petrol

  4. All of above


Correct Option: B
Explanation:

LPG is a better domestic fuel than wood because of several reasons. Unlike wood, LPG burns without smoke. This makes the life of housewives more comfortable and they do not have to worry about blackening of pots and pans. Moreover, use of LPG as domestic fuel also rules out the chances of getting respiratory disorders which may happen when someone uses wood as kitchen fuel. Storage and transportation of LPG is easier compared to that of wood.

Which of the following is a solid fuel?

  1. Kerosene

  2. LPG

  3. Charcoal

  4. Methane


Correct Option: C
Explanation:

Solid fuel refers to various types of solid material that are used as fuel to produce energy and provide heating, usually released through combustion. Solid fuels include wood, charcoal, peat, coal, Hexamine fuel tablets, and pellets made from wood, corn, wheat, rye and other grains.

Which of the following fuel is a mixture of butane and propane?

  1. LPG

  2. CNG

  3. Petroleum

  4. Kerosene


Correct Option: A
Explanation:

Compressed natural gas (CNG) (methane stored at high pressure) can be used in place of gasoline (petrol), Diesel fuel and propane/LPG. CNG is made by compressing natural gas (which is mainly composed of methane), to less than 1 percent of the volume it occupies at standard atmospheric pressure.