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Internal Combustion Engines

Internal Combustion Engines
The temperature of interior surface of cylinder wall in normal operation is not allowed to exceed

120°C
180°C
80°C
240°C

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Internal Combustion Engines
Supercharging is the process of supplying the intake air to the engine cylinder at a density ___ the density of the surrounding atmosphere.

None of the listed here
Equal to
Less than
Greater than

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Internal Combustion Engines
The method of determination of indicated power of a multi cylinder spark ignition engine is by the use of

Prony brake test
Motoring test
Morse test
Heat balance test

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

Supercharging
Pre-ignition
Turbulence
Scavenging

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Internal Combustion Engines
The knock in diesel engine occurs due to

Instantaneous and rapid burning of the first part of the charge
Instantaneous auto ignition of last part of charge
Delayed burning of the first part of the charge
Reduction of delay period

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Internal Combustion Engines
The maximum propulsive efficiency of a turbojet engine is at a speed of

2000 km/h
1000 km/h
3000 km/h
2400 km/h

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