While on watch in the engine room, you hear a continuous sounding of the general alarm. Which of the following actions should you take?

A．Make an entry in the official logbook

B．Open the master control valves on the fixed CO2 system

C．Start the fire pump and check discharge pressure

D．Secure auxiliary condenser overboard discharge

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[单选题]The alarm signal for engine room catching fire is a blast of random bell followed by____.A．two knocksB．three BlocksC．four knocksD．five knocks

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[单选题]You may use the room as you like ___ you clean it up afterwards.A． so far as B. so long asC. in caseD. even if

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[单选题]While engine is in operation the piston moves up and down, thus causing the rotation of the （）.A . crankcaseB . slipperC . cam housingD . crankshaft