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Internal Combustion Engines

Internal Combustion Engines
The theoretically correct air fuel ratio for petrol engine is of the order of

0.37569444444444
0.25069444444444
0.50069444444444
0.62569444444444

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Internal Combustion Engines
In a four stroke cycle, the minimum temperature inside the engine cylinder occurs at the

End of exhaust stroke
Beginning of suction stroke
Beginning of exhaust stroke
End of suction stroke

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Internal Combustion Engines
Which of the following is false statement?Excess quantities of sulphur in diesel fuel are Objectionable because it may cause the following

Detonation
Formation of hard coating on piston skirts
Piston ring and cylinder wear
Oil sludge in the engine crank case

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

Stirling cycle
Rankine cycle
Joule cycle
Otto cycle

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Internal Combustion Engines
A stoichiometric air-fuel ratio is

Lean mixture
Rich mixture for over loads
Rich mixture for idling
Chemically correct mixture

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Internal Combustion Engines
The function of a distributor in a coil ignition system of I.C. engines is

To time the spark
To distribute spark
To distribute power
To distribute current

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