單項(xiàng)選擇題On a tank vessel, which of the following substances would be burning in a class "B" fire?()

A.Oil
B.Wood
C.Rags
D.Electrical wiring


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1.單項(xiàng)選擇題A class "B" fire would most likely occur in the ().

A.main switchboard
B.engine room bilge
C.breathing compartment
D.electric fresh water transfer pump

2.單項(xiàng)選擇題The International Oil Pollution Prevention Certificate is valid for a period of ().

A.one year from the date of issue
B.two years from the date of issue
C.three years from the date of issue
D.four years from the date of issue

4.單項(xiàng)選擇題Under the regulations implementing MARPOL, a mobile offshore drilling unit is required to have an International Oil Pollution Prevention (IOPP) certificate when the unit ().

A.is drilling on the Outer Continental Shelf
B.moves to a new drilling location in U-Swaters
C.engages in a voyage to a port of another country which is a party of MARPOL
D.All of the above

5.單項(xiàng)選擇題Convection spreads a fire as a result of ().

A.transmitting the heat of a fire through the ships metal
B.burning liquids flowing into another space
C.heated gases flowing through ventilation systems
D.the transfer of heat across an unobstructed space