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Internal Combustion Engines

Internal Combustion Engines
The operation of forcing additional air under pressure into the engine cylinder is known as

Supercharging
Carburetion
Turbulence
Delay period

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Internal Combustion Engines
If V₁ is the jet velocity and V₀ is the vehicle velocity, then the propulsive efficiency of a rocket is given by

[2(V₀/V₁)]/ [1 + (V₀/V₁)²]
V₁/(V₀ + V₁)
(V₀/V₁)/ [1 + (V₀/V₁)²]
V₀/(V₀ + V₁)

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Internal Combustion Engines
The inlet valve of a four stroke cycle internal combustion engine remains open for

180°
130°
270°
230°

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Internal Combustion Engines
The colour of exhaust from diesel engine is generally

Violet
White
Black
Bluish

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Internal Combustion Engines
The magneto in an automobile is basically

D.C. generator
Transformer
Capacitor
Magnetic circuit

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Internal Combustion Engines
In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.

Equal to
Above
None of these
Below

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