單項選擇題A fire is discovered in the forepeak of a vessel at sea. The wind is from ahead at 35 knots.You should（）.

A.remain on course and hold speed
B.change course and put the stern to the wind
C.change course to put the wind on either beam and increase speed
D.remain on course but slack the speed


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1.單項選擇題A fire of escaping liquefied flammable gas is best extinguished by（）.

A.cooling the gas below the ignition point
B.cutting off the supply of oxygen
C.stopping the flow of gas
D.interrupting the chain reaction

2.單項選擇題A fire starts on you vessel while refueling. You should first（）.

A.stop the ventilation
B.sound the general alarm
C.determine the source of the fire
D.attempt to extinguish the fire

3.單項選擇題A flame screen（）.

A.permit the passage of vapor but not of flame
B.prevents the passage of flammable vapors
C.prevents inert gas from leaving a tank
D.permits vapors to exit but not enter a tank

4.單項選擇題A foam-type portable fire extinguisher is most useful in fighting a fire in（）.

A.generators
B.oil drums
C.the bridge controls
D.combustible metals

5.單項選擇題A foam-type portable fire extinguisher would be most useful in combating a fire in（）.

A.soild materials such as wood or bales of fiber
B.flammable liquids
C.a piece of electrical equipment
D.combustible metallic solids