单选题Before coming here, ask the engine room for power and water on deck.（）A 来这儿之前，叫机舱给甲板送电和水。B 离开这儿之前，叫机舱给甲板送电和水。C 来这儿之前，叫机舱备车。D 来这儿之前，叫机舱给驾驶台送电和水。

The bridge should inform the engine room______before passing through congested or shallow waterway.

A.24 hours

B.2 hours

C.1 hour

D.15 minutes

The Chief and 3rd Engineers went below，changed the fuel to diesel oil and reduced the engine to slow ahead．This sentence implies all those below except that ________ ．

A.the Engine was not on slow ahead before Chief and 3rd Engineers went down

B.the Engine was using diesel oil before Chief and 3rd Engineers went down

C.the Engine was using fuel oil before Chief and 3rd Engineers went down

D.the Chief and 3rd Engineers went into the Engine Room to operate the Engine

A.engine room logbook

B.vovage logbook

c engine room logbook or voyage loglook

D.engine room logbook and voyage logbook

Before using a fixed CO2 system to fight an engine room fire, you must ______.

A.secure the engine room ventilation

B.secure the machinery in the engine room

C.evacuate all engine room personnel

D.All of the above

If anything abnormal be found on the load change of main engine when the ship is entering in shallow waterway, before taking measures the engineer on duty should _______.

A.stop main engine immediately

B.ask the captain and the chief engineer's permission for stopping the engine

C.inquire the bridge for the situation initiatively

D.stop engine and inform bridge

Which of the following is the stated proper sequence before commencing cargo operations aboard Ro-Ro vessels?

A.Start ventilation，lower the ramp，notify engine room

B.Lower the ramp，start ventilation，notify engine room

C.Notify engine room，lower the ramp，start ventilation

D.Start ventilation，notify engine room，lower the ramp

How to pump out bilge water in the engine room?