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Internal Combustion Engines

Internal Combustion Engines
In a naturally aspirated diesel engine, the air is supplied by

A supercharger
A vacuum chamber
An injection tube
A centrifugal blower

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Internal Combustion Engines
The thermal efficiency of a standard Otto cycle for a compression ratio of 5.5 will be

0.25
0.7
0.5
1

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Internal Combustion Engines
The power actually developed by the engine cylinder of an I.C. engine is known as

Actual power
Indicated power
None of the listed here
Theoretical power

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Internal Combustion Engines
The knocking tendency in spark ignition engines may be decreased by

Controlling the air-fuel mixture
Reducing the compression ratio
Controlling the exhaust temperature
Controlling the ignition timing

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Internal Combustion Engines
The thermal efficiency of diesel engines is about

0.5
0.15
0.3
0.7

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Internal Combustion Engines
The reflectivity depends upon

Energy of neutrons
Geometry of the reflector
All of these
Properties of the reflector

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