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Internal Combustion Engines

Internal Combustion Engines
In diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of

1000°C
250°C
500°C
2000°C

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Internal Combustion Engines
Does the supply of scavenging air at a density greater than that of atmosphere mean engine is supercharged?

No
Unpredictable
To some extent
Yes

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Internal Combustion Engines
In order to prevent knocking in spark ignition engines, the charge away from the spark plug should have

Low density
Low temperature
Long ignition delay
All of these

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Internal Combustion Engines
The cam shaft of a four stroke I.C. engine running at 1500 rpm will run at

Any value independent of engine speed
3000 rpm
1500 rpm
750 rpm

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Internal Combustion Engines
Compression loss in I.C engines occurs due to

All of these
Clogged air inlet slots
Use of thick head gasket
Leaking piston rings

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Internal Combustion Engines
The output of a diesel engine can be increased without increasing the engine revolution or size in following way

Scavenging
Heating incoming air
Supercharging
Feeding more fuel

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MORE MCQ ON Internal Combustion Engines

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