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3246
What effect does high density altitude, as compared to low density altitude, have on propeller efficiency and why?
| | A) Efficiency is reduced due to the increased force of the propeller in the thinner air. |
| | B) Efficiency is increased due to less friction on the propeller blades. |
| * | C) Efficiency is reduced because the propeller exerts less force at high density altitudes than at low density altitudes. |
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