| In addition to achieving a speed reduction for efficient propeller operation, what statement represents other possible functional purposes for reduction gears? |
| A) Reduction gears can be used for engine rotation reversal and reduction gears can be used for multiple propeller shaft outputs. |
| B) Reduction gears can be used for propeller thrust reversal and reduction gears can be used for multiple prime mover inputs. |
| C) Reduction gears can be used for propeller thrust reversal and reduction gears can be used for multiple propeller shaft outputs. |
| D) Reduction gears can be used for engine rotation reversal and reduction gears can be used for multiple prime mover inputs. |
