Tag: lpg, cng

Questions Related to lpg, cng

Kerosene has a lower ignition temperature than diesel.

evs what if it finishes? lpg, cng treasures from the earth fuel and conservation

  1. True

  2. False

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Correct Option: A
Explanation:

A fuel with lowest ignition temperature means, it catches fire easily and is called highly inflammable. Kerosene has lower ignition temperature than diesel. This means kerosene will start to catch fire faster than diesel.

The characteristics of a good fuel are:

evs how to save fuel lpg, cng treasures from the earth fuel and conservation

  1. it should release more energy

  2. it should be safe

  3. it should be easily transportable

  4. all of the above

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Correct Option: D
Explanation:

The characteristics of a good fuel are near to the characteristics of an ideal fuel, as there can not exist an ideal fuel in nature.
It should release more energy,  it should be safe,  it should be easily transported, readily available,  should not cause pollution on combustion etc.

The full form of C.N.G is:

evs how to save fuel lpg, cng treasures from the earth fuel and conservation

  1. Compound Natural Gas

  2. Complex Natural Gas

  3. Compound New Gas

  4. Compressed Natural Gas

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Correct Option: D
Explanation:

CNG is made by compressing natural gas (which is mainly composed of methane, CH4), to less than 1 percent of the volume, it occupies at standard atmospheric pressure. It is stored and distributed in hard containers at a pressure of 2025 MPa (2,9003,600 psi), usually in cylindrical or spherical shapes. Thus it is also called Compressed natural gas (CNG) (Methane stored at high pressure).

What does CNG stand for?

evs how to save fuel lpg, cng treasures from the earth fuel and conservation

  1. Clean natural gas

  2. Compressed natural gas

  3. Cheaper natural gas

  4. Compressed natural gasoline

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Correct Option: B
Explanation:

CNG is Compressed Natural Gas.

Spark plugs are not necessary in a diesel engine because 

evs how to save fuel lpg, cng treasures from the earth fuel and conservation

  1. compression of the gases heat them above the ignition temperature of the fuel

  2. diesel is more volatile than petrol

  3. there is deposition of carbon in the spark plug which is difficult to remove

  4. diesel is easily ignited

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Correct Option: C

Which one of the following is fuel of our body?

evs how to save fuel lpg, cng treasures from the earth fuel and conservation

  1. Petrol

  2. Diesel

  3. Food

  4. Water

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Correct Option: C
Explanation:

Our body runs on the fuel it gets from what we eat food.

What is the full form of PNG?

evs how to save fuel lpg, cng treasures from the earth fuel and conservation

  1. Petrol Natural Gas

  2. Piped Natural Gas

  3. Pressurise Natural Gas

  4. Pure Natural Gas

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Correct Option: B
Explanation:

Piped Natural Gas is abbreviated as PNG. Piped Natural gas (PNG) is used for domestic, commercial and industrial consumption. PNG has several distinctions to its credit of being a pollution free fuel, economical and safer fuel.

In which form, the energy is stored in a fuel?

evs how to save fuel lpg, cng treasures from the earth fuel and conservation

  1. Potential energy

  2. Thermal energy

  3. Kinetic energy

  4. All of the above

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Correct Option: A
Explanation:

Fuels store the energy in form of potential energy and it can be released to do work.

The most common sources of energy are:

evs how to save fuel lpg, cng treasures from the earth fuel and conservation

  1. wood and coal

  2. petroleum and coal

  3. LPG and cow dung

  4. natural gas and wood

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Correct Option: B
Explanation:

Fossil energy like coal, lignite, petroleum and natural gas are most common sources of energy. These sources of energy are used to produce electricity, cook food, heat thermal engines etc. 

Cleaner fuel among the following is:

evs how to save fuel lpg, cng treasures from the earth fuel and conservation

  1. petrol

  2. kerosene

  3. diesel

  4. compressed natural gas

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Correct Option: D
Explanation:

Compressed natural gas is a cleaner fuel because it causes less pollution by emitting lesser pollutants like carbon dioxide, nitrogen oxides, sulphur oxides, carbon monoxides, unburnt hydrocarbons etc.