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In a four-stroke engine, how many crankshaft turns does each cylinder need for one power stroke?

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  1. Two turns
  2. One turn
  3. Four turns

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References

  1. Army TM 9-8000: Principles of Automotive Vehicles www.liberatedmanuals.com/TM-9-8000.pdf Checked 2026-10-12.
  2. US Navy NAVEDTRA 14264: Construction Mechanic Basic, Volume 1 archive.org/stream/USNavyCourseAviationMaintenanceRatingsNAVEDTRA14022/US%20Navy%20course%20-%20Construction%20Mechanic%20Basic,%20Volume%201%20NAVEDTRA%2014264_djvu.txt Checked 2026-10-12.

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