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Internal Combustion Engines

Internal Combustion Engines
A diesel engine has

1 valve
4 valves
2 valves
3 valves

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

Relative efficiency
Net efficiency
Overall efficiency
Efficiency ratio

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Internal Combustion Engines
For maximum power generation, the air fuel ratio for a petrol engine for vehicles, is of the order of

0.50069444444444
0.75069444444444
0.37569444444444
0.62569444444444

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Internal Combustion Engines
The spark ignition engines are governed by

Hit and miss governing
Combination of (B) and (C)
Quantitative governing
Qualitative governing

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Internal Combustion Engines
The thermal efficiency of petrol and gas engines is about

0.3
0.5
0.15
0.7

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Internal Combustion Engines
A mixture containing 65% of iso-octane and 35% of normal heptane will have

Cetane number 35
Octane number 35
Octane number 65
Cetane number 65

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MORE MCQ ON Internal Combustion Engines

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