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.

Equal to
None of the listed here
Less than
Greater than

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Internal Combustion Engines
In a typical medium speed 4-stroke cycle diesel engines

May open and close anywhere
Exhaust valve opens at bottom dead center and closes at top dead center
Exhaust valve opens at 35° before bottom dead center and closes at 20° after top dead center
Exhaust valve opens just after bottom dead center and closes just before top dead center

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