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Internal Combustion Engines

Internal Combustion Engines
The air standard efficiency of an Otto cycle compared to diesel cycle for the given compression ratio is

More
Same
More or less depending on power rating
Less

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Internal Combustion Engines
A fuel of an octane number rating of 75 matches in knocking intensity as a mixture of

75% diesel and 25% petrol
75% petrol and 25% diesel
75% iso-octane and 25% normal heptane
75% normal heptane and 25% iso-octane

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Internal Combustion Engines
Scavenging is usually done to increase

Speed
Thermal efficiency
Power output
Fuel consumption

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Internal Combustion Engines
Solid fuel fabricated into various small shapes, which are assembled to form fuel elements, is in the form of

Plates
All of these
Pallets
Pins

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Internal Combustion Engines
The turbine of the turboprop engine is ___ that of the turbojet engine.

Smaller than
None of the listed here
Bigger than
Same as

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Internal Combustion Engines
In a diesel engine, the duration between the time of injection and ignition, is known as

Delay period
Burning period
Period of ignition
Pre-ignition period

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