单项选择题

You are on a cargo vessel carrying toluol in bulk in portable tanks. Which is a requirement for pumping the toluol? （）

A.Hose connections to the tank must be made with a minimum of three bolts
B.There must be water pressure on the fire main
C.You must shut down if another vessel comes alongside
D.If transferring at anchor，you must display a red flag by day and a red light at night

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单项选择题

You are Master of a vessel that is sold in a foreign country after discharge of cargo. What is your responsibility to the crew in regards to return to the United States? （）

A.You must provide air transportation to the nearest port of entry in the United States
B.You must provide passage to the port of original engagement
C.There is no requirement for return to the United States provided the voyage has exceeded 4 weeks duration
D.The crew can be employed on another United States vessel，but only if it is returning to the port of original engagement

单项选择题

You are loading a cargo that includes cylinders of acetylene aboard your break bulk vessel. Which statement is true? （）

A.The cylinders must be stowed at least 10 horizontal feet from corrosive materials in the same space
B.Stowage in the upper deck-deck is considered to be the equivalent of "on deck" stowage for this cargo
C.The cylinders must have a red label for flammability and a green label for compressed gas
D.The cylinders may be protected from the radiant heat of the Sun by laying a tarp on them

单项选择题

You are loading a cargo tank on your container ship. The tank displays the red label shown. Which statement is TRUE? （）

A.The tank contains propylene
B.The tank's volume is 1077 cubic feet
C.There are three tanks in the shipment
D.The tank contains an oxidizing material