航海英语遇险通信章节练习(2018.01.01)

单项选择题
If you log a distress message，it must include the（）.
A.sea state
B.names of witnesses
C.time of its occurrence
D.wind direction and velocity
单项选择题
A distress signal（）.
A.consists of 5 or more short blasts of the fog signal apparatus
B.consists of the raising and lowering of a large white flag
C.may be used separately or with other distress signals
D.is used to indicate doubt about another vessel's intentions
单项选择题
According to the “Vessel Bridge-to-Bridge Radiotelephone Act”，your radiotelephone log must contain（）.
A.a record of all routine calls
B.a record of your transmissions only
C.the home address of the vessel's Master or owner
D.a summary of all distress calls and messages
单项选择题
When sending a DSC call，the vessel’s（）.
A.position will automatically be sent
B.position will only be sent if the vessel is making a distress call
C.MMSI will indicate its ocean region
D.None of the above
单项选择题
The distress message of a ship should include considerable information which might facilitate the rescue. This information should（）.
A.ALWAYS be included in the initial distress message
B.be sent to a Coast Guard station FIRST
C.be transmitted as a series of short messages，if time allows
D.include the vessel's draft
单项选择题
The signal to guide vessels in distress，which indicates，“This is the best place to land” is the（）.
A.horizontal motion of a white flag
B.letter K in Morse code given by light
C.code flag S as a hoist
D.firing of a white star signal
单项选择题
A vessel，which does not normally engage in towing operations，is towing a vessel in distress. She（）.
A.need not show the lights for a vessel engaged in towing，if it is impractical to do so
B.may show the lights for a vessel not under command
C.must show a yellow light above the stern light
D.must show the lights for a vessel towing
单项选择题
What is the fundamental purpose for imposing radio silence? （）
A.To ensure that interference to proprietary communications is minimized
B.To ensure that only voice communications can be effected on the distress frequency or channel
C.To ensure that a distressed vessel will have a "window" twice each hour for transmitting routine messages
D.To ensure that interference on a particular frequency or channel to communications concerning emergency traffic is minimized
单项选择题
If you are transmitting a distress message by radiotelephone you should（）.
A.use English language
B.always use the International Code
C.preface it by the word "Interco"
D.follow the transmission with the radio alarm signal
单项选择题
All of the following are recognized distress signals under the Navigation Rules EXCEPT（）.
A.a green star signal
B.orange-colored smoke
C.red flares
D.the repeated raising and lowering of outstretched arms