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132 - ATPL Question Bank in English - The correct formula to calculate the multi-cylinder engine displacement is:

Question 132 - Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot Licence

Total cylinder volume at bottom dead centre, including clearance volume, multiplied by the number of cylinders
Piston area * piston stroke.
Cylinder length * cylinder diameter.
Piston area * piston stroke * number of cylinders.

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