Internal Combustion Engines
The actual volume of fresh charge admitted in 4-stroke petrol engine is

Less than stroke volume
Equal to stroke volume and clearance volume
Equal to stroke volume
More than stroke volume

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Internal Combustion Engines
In a coil ignition system of petrol engines, a condenser is connected across the contact breaker in order to

Both (A) and (B)
None of these
Prevent sparking across the gap between the points
Cause more rapid break of the primary current, giving a higher voltage in the secondary circuit

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Internal Combustion Engines
The expansion of fuel in a four stroke cycle diesel engine

Starts at top dead center and ends at 30° after top dead center
May start and end anywhere
Starts at 15° after top dead center and ends at 30° before bottom dead center
Starts at 15° before top dead center and ends at 30° after top dead center

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