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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
500°C
2000°C
250°C

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Internal Combustion Engines
The thermal efficiency of diesel engines on weak mixtures is

Unaffected
Dependent on other factors
Lower
Higher

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Internal Combustion Engines
The cetane number of diesel oil, generally available, is

20 to 25
30 to 40
40 to 55
25 to 30

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Internal Combustion Engines
In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.

None of these
Below
Above
Equal to

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Internal Combustion Engines
The spark ignition engines are governed by

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

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Internal Combustion Engines
The thermodynamic cycle on which the petrol engine works, is

Joule cycle
Rankine cycle
Otto cycle
Stirling cycle

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