| Concerning main propulsion reduction gears, what statement is true? |
| A) The reduction gear allows the prime mover to rotate efficiently at relatively high-speed and low torque and allows the propeller to rotate efficiently at relatively low-speed and high torque. |
| B) The reduction gear allows the prime mover to rotate efficiently at relatively high-speed and high torque and allows the propeller to rotate efficiently at relatively low-speed and low torque. |
| C) The reduction gear allows the prime mover to rotate efficiently at relatively low-speed and low torque and allows the propeller to rotate efficiently at relatively high-speed and high torque. |
| D) The reduction gear allows the prime mover to rotate efficiently at relatively low-speed and high torque and allows the propeller to rotate efficiently at relatively high-speed and low torque. |
