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Internal Combustion Engines

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

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

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Internal Combustion Engines
The ignition of the charge by some hot surface within the engine before the passage of spark is called

Ignition delay
Auto-ignition
Detonation
Pre-ignition

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Internal Combustion Engines
The thermal efficiency of diesel engines on weak mixtures is

Dependent on other factors
Higher
Unaffected
Lower

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Internal Combustion Engines
In a petrol engine, the fuel supplied to the engine cylinder is mixed with required quantity of air and the mixture is ignited with a

Fuel pump
Spark plug
None of these
Fuel injector

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Internal Combustion Engines
Supercharging is the process of supplying the intake air to the engine cylinder at a density ___ the density of the surrounding atmosphere.

Greater than
None of the listed here
Less than
Equal to

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Internal Combustion Engines
A higher compression ratio causes

Pre-ignition
Acceleration in the rate of combustion
Any one of these
Increase in detonation

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