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Internal Combustion Engines

Internal Combustion Engines
The pressure at the end of compression, in petrol engines, is approximately

10 bar
20 bar
35 bar
25 bar

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

50
100
120
0

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Internal Combustion Engines
The increase of cooling water temperature in petrol engine will _________ the knocking tendency.

None of these
Increase
Decrease
Not effect

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Internal Combustion Engines
All heat engines utilize

High heat value of oil
Calorific value of fuel
Low heat value of oil
Net calorific value of oil

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Internal Combustion Engines
Pre-ignition is caused by the spontaneous combustion of the mixture before the end of the compression stroke, and is due to

Any one of the listed here
Red hot carbon deposits on cylinder walls
Overheated spark plug points
Cylinder walls being too hot

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Internal Combustion Engines
A 5 BHP engine running at full load would consume diesel of the order of

0.3 kg/hr
5 kg/hr
3 kg/hr
1 kg/hr

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MORE MCQ ON Internal Combustion Engines

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