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单选题
The signal for a fire emergency on an OSV is（）.
A
a 30 second on 30 second off alternating signal
B
the continuous blast of the ships whistle for not less than 10 seconds supplemented by the continuous ringing of the general alarm bells for not less than 10 seconds
C
an intermittent ringing of the general alarm for not less than ten seconds
D
announced over the PA system
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更多 “单选题The signal for a fire emergency on an OSV is（）.A a 30 second on 30 second off alternating signalB the continuous blast of the ships whistle for not less than 10 seconds supplemented by the continuous ringing of the general alarm bells for not less than 10 secondsC an intermittent ringing of the general alarm for not less than ten secondsD announced over the PA system” 相关考题
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考题
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ImmediatelyB
After one hourC
Only when another vessel is in sightD
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单选题While reading the station bill, you find "three (3) short blasts on the whistle and three (3) short tings on the general alarm bells," this signal is for （）.A
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ring buoys are thrown overboardB
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Flash signalC
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考题
单选题Which of the following represents the emergency signal for fire aboard ship?（）A
More than six short blasts and one long blast on the whistleB
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More than six short blasts and one long blast on the whistle supplemented by the same signal on the general alarm
考题
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WindlassC
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考题
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a continuous ringing for 10 secondsB
one short ring followed by one long ringC
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a continuous ringing until the fire is extinguished
考题
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after control of fire，flooding，and structural repairsB
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考题
单选题（）(除了) the fire drill, there are also boat drill and emergency drill on board.A
ExceptB
AlthoughC
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