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

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

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Internal Combustion Engines
Fuel consumption of diesel engines is not guaranteed at one quarter load because at such low loads

The friction is unpredictable
The engine is rarely operated
The small difference in cooling water temperature or in internal friction has a disproportionate effect
The friction is high

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