When evacuating a seaman by helicopter lift，the vessel should be（）.

单项选择题What should you do if you have transmitted a distress call a number of times on channel 16 and have received no reply?（）

A.Repeat the message using any other channel on which you might attract attention
B.Key the microphone several times before transmitting again
C.Turn up the volume on the receiver before transmitting again
D.Report the problem to the head electrician

单项选择题What is one of the FIRST actions you should take after abandoning and clearing away from a vessel?（）

A.Identify the person in charge
B.Gather up useful floating objects
C.Prepare for arrival of rescue units
D.Arrange watches and duties

单项选择题Upon receipt of a distress message，a merchant vessel is bound to proceed to the scene of the distress. Under which of the following cases would this NOT be true?（）

A.The vessel would arrive at the distress scene more than 36 hours after the receipt of the initial distress message
B.There are vessels closer to the distress scene that are proceeding to assist
C.The Master of the vessel in distress has requisitioned another vessel，and that vessel has accepted the requisition
D.You are on a tanker and the distress involves a major fire on board the other vessel

单项选择题The survival craft is manufactured with fire retardant（）.

A.foam
B.marine plywood
C.steel
D.fiberglass

单项选择题The signal for fire alarm on a ship must be indicated（）.

A.at each alarm bell
B.at each alarm actuator
C.near all exits
D.on the station bill