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Question

Supercharging is the process of


A

Supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere

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B

Providing forced cooling air

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C

Injecting excess fuel for raising more loads

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D

Supplying compressed air to remove combustion products fully

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Solution

The correct option is A

Supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere


The explanation for the correct option

  1. A supercharger is like an air compressor, which increases the amount of pressure of air supply to an internal combustion engine.

  1. It injects more air to the engine but the limitation is that the impeller gets power from the engine output
  2. The output of the shaft engine is connected to the impeller
  3. So there should be some loss of mechanical energy
  4. In supercharging, the intake density of the oxygen is higher than the surrounding, so it intakes more oxygen, burns more fuel, and generates more power.

So option A is correct.

The explanation for the incorrect option

For option B

It doesn't provide force-cooling air. It provides compressed air

So option B is incorrect

For option C.

It injects compressed air, not excess fuel to generate more power.

So option C is incorrect

For option D

It supplies compressed air but does not remove combustion products fully. It supply compressed air to burn more fuel to produce more power

Hence, option A is correct


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