A.flash point
B.upper explosive limit
C.lower expiosive limit
D.All of the above
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A.heated gases flowing through ventilation syetem
B.the transfer of heat across an unobstructed space
C.burning liquids flowing into another space
D.transmitting the heat of a fire through the ships metal
A.should hold responsible for
B.should be hold responsible for
C.should be free of
D.should be brarable of
A.jumping over today
B.backing to yesterday
C.jumping over tomorrow
D.backing to the day before yesterday
A.KG is increased
B.KG is decreased
C.Kgis not affected
D.KG increases at light drafts and decrease at deep drafts
A.litmus paper
B.a combustible gas indicator
C.an oxygen breathing apparatus
D.an oxygen indicator
最新試題
When the wave period and the apparent rolling period are the same（）.
Berthing means bringing a vessel to her berth until（）.
Fog is likely to occur when there is little difference between the dew point and the（）.
Which of the following is not an operation mode of AIS?（）
ECDIS must be able to perform all of the following EXCEPT（）.
It is dangerous for vessels without the operational radar（）the estuary.
Shipboard Emergency Drills must be carried out at least（）on board cargo ship.
Full details of all lights and fog signals are shown on（）.
What is it called when it is possible to ignite the vapour above the oil?（）
Which of the following shall not the officers in charge of the navigational watch do?（）