a continuous ringing for 10 seconds
one short ring followed by one long ring
two long rings of at least 20 seconds
a continuous ringing until the fire is extinguished
第1题：
A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the ______.
A.distress position
B.spoken words “Mayday, Mayday, Mayday”
C.ship’s name
D.ship’s call letters
第2题：
Every ship should hoist ______ when approaching and entering ports.
A.its flashing light
B.the ship’s name
C.its identification
D.its signal letters
第3题：
The emergency signal for fires is sounded on the ship’s whistle and general alarm as _____.
A.a continuous ringing for 10 seconds
B.one short ring followed by one long ring
C.two long rings of at least 20 seconds
D.a continuous ringing until the fire is extinguished
第4题：
abandon ship
dismissal from fire and emergency stations
fire and emergency
man overboard
第5题：
meeting another head-on
crossing the course of another
overtaking another
Any of the above
第6题：
Concerning the identification signal for a pilot vessel, in fog, which statement is TRUE?___.
A.When at anchor, the pilot vessel is only required to sound anchor signals
B.The identification signal must be sounded any time the pilot vessel is underway
C.The pilot vessel may only sound the identity signal when making way
D.All of the above
第7题：
The emergency alarm is sounded on （）according to master’s order.
第8题：
______ is not contained in the muster list．
A.the details of how the order to abandon ship is given
B.the details of the general emergency alarm signal，the fire alarm signal and the public address system
C.the substitutes for key persons who may become disabled
D.the various fire sections enclosed by“A”class divisions
第9题：
When at anchor，the pilot vessel is only required to sound anchor signals
The identification signal must be sounded any time the pilot vessel is underway
The pilot vessel may only sound the identity signal when making way
All of the above
第10题：
After determining that the frequency or channel appears to be no longer in use
After determining that geographic distance from the distress situation will prohibit any other signal from interfering with emergency communications
After the Rescue Coordination Center transmits a message on the frequency or channel being used for emergency communications stating that such traffic has concluded
Routine communications can resume if，in the Master's opinion，communications on that frequency or channel will not interfere with emergency communications