[单选题]The difference between the starboard and port drafts caused by a transverse shift in weight is ______.
[单选题]Bedplates are the ______of the engine, without the support of which the shaft alignment in particular, and engine structure as a whole, would inevitably be lost.
[单选题]_____ device is provided to prevent starting air from being admitted to the cylinder before the reversing is completed.
[单选题]Main engine room control console alarms are to be of the self monitoring type, meaning that an open circuit to a particular alarm circuit will ______.
[单选题]The officer in charge of the engineering watch shall ensure that all machinery involved with manoeuvring of the ship can immediately be placed in ______ of operation when notified that the ship is in congested waters.