單項選擇題Your vessel is equipped with totally enclosed lifeboats. Which statement is true when the boat is enveloped in flames?（）.

A.The ventilators will automatically close by the action of fusible links
B.The motor takes its air supply from outside the lifeboat to prevent asphyxiation of the crew
C. A water spray system to cool the outside of the boat is operated by a high-volume manual pump
D.An air tank will provide about ten minutes of air for the survivors and the engine


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1.單項選擇題Your vessel is off a lee shore in heavy weather and laboring. Which action should you take?（）.

A.Put the sea and wind about two points on either how and reduce speed
B.Heave to in the trough of the sea
C.Put the sea and wind on either quarter and proceed at increased speed
D.Put the bow directly into the sea and proceed at full speed

2.單項選擇題（）as the chemical extinguisher agent, should be used for a an electric fire.

A.Dry chemical or foam
B.Foam or soda acid
C.carbon dioxide or foam
D.carbon dioxide or dry chemical

4.單項選擇題（）about 20 sq.m to be sand-blasted.

A.The rusting area
B.The rusted area
C.The corroded area
D.The corrosive area

5.單項選擇題（）behalf of my owners, I give you my formal notice.

A.At
B.On
C.Of
D.In