單項(xiàng)選擇題Oil may NOT be transferred unless().

A.there are two certificated tankermen on each vessel
B.the vessel is equipped with constant-tension winches
C.discharge containment equipment (i.e. drip pans) are in place
D.All of the above


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1.單項(xiàng)選擇題Of the following,the most important consideration for a tanker is().

A.GM
B.the vertical center of gravity
C.the longitudinal center of gravity
D.the stress on the hull

3.單項(xiàng)選擇題Litmus paste is used in order to determine().

A.innage
B.thievage
C.ullage
D.the tank's datum point

4.單項(xiàng)選擇題Joiner bulkheads on a vessel provide().

A.compartmentalization
B.watertight integrity
C.structural support
D.tank boundaries

5.單項(xiàng)選擇題Individual wires,used in systems greater than 50 volts,().

A.should be supported at 24 inch intervals with plastic tie wraps
B.should never be located in a tank
C.must be installed in conduit
D.All of the above