Internal Combustion Engines
A diesel engine as compared to petrol engine (both running and rated load) is

Less efficient
Equally efficient
Other factors will decide it
More efficient

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Internal Combustion Engines
Supercharging is the process of

Providing forced cooling air
Supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere
Injecting excess fuel for raising more loads
Supplying compressed air to remove combustion products fully

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Internal Combustion Engines
For the same compression ratio

Otto cycle is more efficient than the Diesel
Both Otto and Diesel cycles are, equally efficient
Compression ratio has nothing to do with efficiency
Diesel cycle is more efficient than Otto

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Internal Combustion Engines
Which of the following statement is correct regarding petrol engines?

The fuel is first evaporated after passing through a carburettor and is mixed with air before ignition
A fine fuel spray mixed with air is ignited by the heat of compression which is at a high pressure
All of these
The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug

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