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- Third Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q531 - Motor Plants I
44. If the piston stroke in a four-stroke cycle diesel engine is 10 1/2 inches and the speed of rotation of the crankshaft is 720 RPM, what is the average piston speed?
The average piston speed is calculated as twice the stroke length multiplied by the crankshaft speed, resulting in 1260 feet per minute.
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