Engine: Electricity

1. A Vibration sensors are used to achieve identical shaft speeds and propeller synchronization to minimize vibration.
2. B The respective shaft speed sensors alone are used to achieve identical shaft speeds without regard to propeller position to achieve even power development.
3. C The respective shaft speed and shaft position sensors are used to achieve identical shaft speeds and propeller synchronization to minimize shaft vibration.
4. D Cavitation sensors are used to achieve identical shaft speeds and propeller synchronization to minimize vibration.

Tip: press A-D to answer