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Internal Combustion Engines

Internal Combustion Engines
The magneto in an automobile is basically

Magnetic circuit
Capacitor
D.C. generator
Transformer

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Internal Combustion Engines
The working pressure and temperature inside the cylinder of an internal combustion engine is _________ as compared to a steam engine.

Low
High
Very high
Very low

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Internal Combustion Engines
The brake power of a diesel engine, keeping other parameters constant, can be increased by

Increasing the pressure of intake air
Increasing the temperature of intake air
Decreasing the pressure of intake air
Decreasing the density of intake air

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Internal Combustion Engines
The pressure and temperature at the end of compression stroke in a petrol engine are of the order of

6-12 kg/cm² and 250-350°C
12-20 kg/cm² and 350-450°C
4-6 kg/cm² and 200-250°C
20-30 kg/cm² and 450-500°C

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Internal Combustion Engines
A higher compression ratio causes

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

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Internal Combustion Engines
Gaseous fuel guarantees are based on

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

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MORE MCQ ON Internal Combustion Engines

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