航海英语紧急通信单项选择题每日一练(2018.02.13)

A.One approved Category 1 EPIRB
B.Three approved Category 1 EPIRBs
C.One approved Class B EPIRB
D.Two approved Class B EPIRBs

A.opening dead spaces to check for heat or fire
B.evacuation of the vessel
C.sounding the "all clear" signal
D.operation of the emergency generator

A.annually by the owner，with a letter submitted six months before expiration
B.only once every five years，with a letter submitted six months before expiration
C.and the entire plan resubmitted for approval once every five years，six months before expiration
D.annually by the owner，with a letter submitted to the Coast Guard within one month of the anniversary date of the plan approval

A.danger，stay away
B.all is clear，it is safe to pass
C.the vessel is anchored
D.a distress signal

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