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Internal Combustion Engines

Internal Combustion Engines
Iso-octane (C₈H₁₈) has octane number of

100
50
0
120

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Internal Combustion Engines
A carburettor is used to supply

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

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Internal Combustion Engines
Gaseous fuel guarantees are based on

Low heat value of oil
High heat value of oil
Calorific value of oil
Mean heat value of oil

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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?

To some extent
Unpredictable
No
Yes

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

0.62569444444444
0.37569444444444
0.25069444444444
0.50069444444444

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Internal Combustion Engines
Which of the following is false statement? Some of the methods used to reduce diesel smoke are as follows

Adherence to proper fuel specification
Increasing the compression ratio
Avoidance of overloading
Using additives in the fuel

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