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Internal Combustion Engines

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

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

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Internal Combustion Engines
A spark plug gap is kept from

0.2 to 0.8 mm
0.6 to 1.0 mm
0.4 to 0.9 mm
0.3 to 0.7 mm

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Internal Combustion Engines
A carburettor is used to supply

Petrol and air
Air and diesel
Petrol and lubricating oil
Petrol, air and lubricating oil

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Internal Combustion Engines
In petrol engines, the delay period is of the order of

0.003 second
0.002 second
0.001 second
0.004 second

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Internal Combustion Engines
In a petrol engine, the mixture has the lowest pressure at the

End of suction stroke
Beginning of suction stroke
End of compression stroke
None of these

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Internal Combustion Engines
The specific fuel consumption of a petrol engine compared to diesel engine of same H.P. is

Less
Same
More
Less or more depending on operating conditions

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MORE MCQ ON Internal Combustion Engines

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