Engine 2014: Motor Plants and Auxiliary Boilers

1. A Astern power is to be provided in a sufficient amount to secure proper control of the ship in all normal circumstances.
2. B The astern power of the main propelling machinery is to provide for continuous operation astern at 60% of the ahead rpm at rated speed.
3. C For main propulsion systems without reversing gears, controllable pitch propellers or electric propulsion drive, running astern is not to lead to overload conditions.
4. D Astern power available will be equal to ahead power when controllable pitch propellers are utilized, thus discounting the need for increased operating parameters.

Tip: press A-D to answer