A.Stem
B.Pin
C.Box
D.Stand
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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
A.abeam
B.dead astern
C.just forward of the beam on either side
D.on either side of the stern
最新試題
What is the function of an air receiver in the compressed air system on a ship? （）
While the Pilot is maneuvering the vessel to a dock，what is the PRIMARY responsibility of the watch officer?（）
The Master to prosecute all voyages with the utmost（）and to render customary assistance with the Vessel’s Crew.
What is the BEST conductor of electricity?（）
Which device is designed to automatically hold the load if power should fail to an electric winch?（）
What is the best instrument for establishing a safe working area before welding in a confined space? （）
Orders of the Master to the officer of the watch which s/he must comply with are（）.
You have orders to drop off a barge loaded with propylene oxide at a fleet.In doing so，you must ensure that（）.
You are a watch standing mate and have come to the bridge to relieve the watch while underway at sea.The watch should not be transferred（）.
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?（）