單項選擇題If an emergency pump control is used as the emergency shutdown on a tank vessel，it must（）.

A.stop the flow of oil at the main deck manifold
B.prevent the oil from leaving the shore facility
C.prevent the oil from siphoning through the pump
D.None of the above


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1.單項選擇題How should you signal the crane operator to stop in an emergency?（）

A.Extend arm with the palm down and hold this position rigidly
B.Place clasped hands in front of your body
C.Extend arm and move hand rapidly right and left with the palm down
D.Place both fists in front of the body with the thumbs pointing outward

2.單項選擇題Fire protection regulations for towing vessels require that drills be conducted on board the vessel as if there were an actual emergency. Drills include all of the following，EXCEPT（）.

A.testing all alarm and detection systems
B.breaking out and using the vessel's emergency equipment
C.participation by selected crew members
D.one person putting on protective clothing，if the vessel is so equipped

4.單項選擇題During the towing of a survival craft，a lookout should be on station to（）.

A.release the towline in an emergency
B.help the helmsman steer
C.look for food and water
D.check the water level in the bilge

5.單項選擇題Coast Guard regulations require that all of the following emergencies be covered at the periodic drills on a fishing vessel EXCEPT（）.

A.minimizing the affects of unintentional flooding
B.fire on board
C.rescuing an individual from the water
D.emergency towing