A.Condenses moisture
B.Provides overpressure protection
C.Purifies the air
D.Acts as an accumulator
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A.Stem
B.Pin
C.Box
D.Stand
A.An oxygen indicator
B.A combustible gas indicator
C.A combination combustible gas and oxygen indicator
D.A flame safety lamp
A.Carbon dioxide
B.Distilled water
C.Fresh water
D.Salt water
A.keep ports，doors，windows，and hatches closed
B.start engines immediately
C.ventilate before starting engine
D.None of the above
A.not
B.no
C.any
D.none
最新試題
Which device is designed to automatically hold the load if power should fail to an electric winch?（）
Which two components pass through the shank of an LWT anchor?（）
You are on watch and the Pilot has the conn.The Master has temporarily gone below.The Pilot orders a course change which you are certain will put the vessel into imminent danger.Your first action should be to（）.
What is the BEST conductor of electricity?（）
Orders of the Master to the officer of the watch which s/he must comply with are（）.
Shipping society approved buoyant work vests are considered to be items of safety equipment and may be worn by members of the crew（）.
When must the Master or person in charge of a ship log the position of load line marks in relation to the surface of the water in the logbook?（）
You are standing the wheelwatch on entering port and the Master gives you a rudder command which conflicts with a rudder command from the Pilot.What should you do（）.
What is the purpose of the limit switch on gravity davits?（）
Who may perform as a lookout（）.