單項(xiàng)選擇題A vessel is equipped with cross-connected deep tanks. In which situation should the cross-connection valve be closed?().

A.The tanks lie above the waterline and are filled
B.The tanks are partially filled with dry cargo
C.The tanks are partially filled with liquid cargo
D.The tanks are filled and lie below the waterline


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1.單項(xiàng)選擇題A tankerman who permits or causes oil to go into a navigable waterway may be punished federally by().

A.fine
B.imprisonment
C.suspension or revocation of tankerman's document
D.All of the above

2.單項(xiàng)選擇題A tank which is NOT completely full or empty is called().

A.pressed
B.slack
C.inertial
D.elemental

3.單項(xiàng)選擇題A tank vessel transferring non-flammable hazardous cargo in bulk must display warning signs. These signs must().

A.be visible from both sides and from forward and aft
B.indicate NO SMOKING
C.be displayed only while transferring cargo and fast to a dock
D.use black lettering on a white background

5.單項(xiàng)選擇題When planning the loading or discharging of a VLCC (100,000 DWT+) what is the most important consideration?()

A.Draft and trim
B.Limits of the bending moments
C.Rate of discharging
D.Rate of loading

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In order to reduce the accumulation of static electricity while loading petroleum products,you should().

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Every oil tanker operating with dedicated clean ballast tanks shall be()with a Dedicated Clean Ballast Tank Operation Manual detailing the system and specifying operational procedures.

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How must each storage tank for helicopter fuel on a ship be marked?()

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Protective clothing must be worn while sampling hazardous cargo on a tanker,and as a minimum includes().

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On a vessel carrying grades A,B,C or D cargoes,enclosed spaces where sources of vapor ignition are normally present shall NOT be segregated from cargo tanks by().

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Air compressors are NOT permitted in which space(s) on a tank barge carrying grade A cargo?()

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During oil transfer operations,who is responsible for ensuring that the posted transfer procedures are followed?().

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Individual wires,used in systems greater than 50 volts,().

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Functions aboard a tanker or tank barge such as connecting,disconnecting,and topping off must be supervised by().

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