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Internal Combustion Engines

Internal Combustion Engines
In petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will _________ the knocking tendency.

None of these
Increase
Not effected
Decrease

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Internal Combustion Engines
High speed compression engines operate on

Dual combustion cycle
All of these
Diesel cycle
Otto cycle

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Internal Combustion Engines
The scavenging efficiency of a four stroke cycle diesel engine is

Between 85 and 95%
Between 50 and 85%
Below 50%
Between 95 and 100%

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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

Pallets
All of these
Pins
Plates

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Internal Combustion Engines
The normal heptane (C₇H₁₆) is given a rating of ________ octane number.

100
120
50

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Internal Combustion Engines
A heat engine utilizes the

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

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