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Internal Combustion Engines

Internal Combustion Engines
A diesel engine has

4 valves
1 valve
3 valves
2 valves

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Internal Combustion Engines
As a result of detonation in an I.C. engine, following parameter attains very high value

Peak pressure
Rate of rise of pressure
Peak temperature
Rate of rise of temperature

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Internal Combustion Engines
The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called

Relative efficiency
Overall efficiency
Efficiency ratio
Net efficiency

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Internal Combustion Engines
Solid fuel fabricated into various small shapes, which are assembled to form fuel elements, is in the form of

All of these
Pins
Plates
Pallets

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Internal Combustion Engines
During idling, a petrol engine requires _________ mixture.

Lean
Chemically correct
None of these
Rich

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Internal Combustion Engines
The ratio of the work obtained at the crankshaft in a given time to the energy supplied during the same time is called

Mechanical efficiency
Volumetric efficiency
Indicated thermal efficiency
Overall efficiency

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