单项选择题

When carrying a cargo of asphalt or molten sulfur，which are carried at temperatures of over 300°F，one of the biggest dangers is（）.

A.water in the tanks or pipelines
B.having the cargo too cool
C.explosion of vapors after discharge
D.inadequate ullage space

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When cargo aboard a jack-up in transit becomes adrift，the tow vessel should be asked to （）.

A.turn into the seas
B.turn to be parallel to the seas
C.reduce speed
D.increase speed

单项选择题

When accepting vehicles for shipment，the Master should ensure that（）.

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D.All of the above

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To “shore up” the main deck for the stowage of deck cargo means to（）.

A.weld pad eyes on deck in proper position to secure the cargo
B.strengthen the main deck by placing pillars underneath it in the tween-decks
C.distribute the weight of the cargo by placing fore-and-aft planks on the main deck
D.package the cargo in wooden crates so it will not damage the deck