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Internal Combustion Engines

Internal Combustion Engines
The temperature of interior surface of cylinder wall in normal operation is not allowed to exceed

240°C
80°C
180°C
120°C

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

Period of ignition
Burning period
Pre-ignition period
Delay period

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Internal Combustion Engines
The object of supercharging the engine is

To reduce space occupied by the engine
To increase the power output of an engine when greater power is required
To reduce mass of the engine per brake power
All of these

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Internal Combustion Engines
The knocking tendency in compression ignition engines for a given fuel will be

Dependent on other factors
Enhanced by decreasing compression ratio
Enhanced by increasing compression ratio
None of these

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Internal Combustion Engines
For the same power developed in I.C. engines, the cheaper system is

Supercharged
Turbo charger
Naturally aspirated
Centrifugal pump

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Internal Combustion Engines
The knock in diesel engine occurs due to

Instantaneous and rapid burning of the first part of the charge
Instantaneous auto ignition of last part of charge
Reduction of delay period
Delayed burning of the first part of the charge

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MORE MCQ ON Internal Combustion Engines

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