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[单项选择]A signal indicating Greenwich mean time would be preceded with().
A. a code hoist to indicate Greenwich mean time to follow
B. the letter G
C. the letters GT
D. the letter Z
[单项选择]Daylight savings time is a form of zone time that adopts the time().
A. one zone to the east
B. one zone to the west
C. two zones to the east
D. two zones to the west
[单项选择]The lifesaving signal indicating You are seen - assistance will be given as soon as possible is the().
A. vertical motion of white flags
B. vertical motion of a white light or flare
C. firing of a green star signal
D. None of the above
[单项选择]Which signal is recognized as a distress signal?().
A. Directing the beam of a searchlight at another vessel
B. A smoke signal giving off orange colored smoke
C. A whistle signal of one prolonged and three short blasts
D. International Code Signal PAN spoken over the radiotelephone
[单项选择]A tropical wave is usually preceded by().
A. tropical storms
B. good weather
C. heavy rain and cloudiness
D. heavy seas
[单项选择]The Emergency Position Indicating Radiobeacon on a cargo vessel must be stowed().
A. in an inside passageway
B. in an approved bracket
C. so that it is accessible from the bridge of the vessel
D. so that it will float free if the vessel sinks
[单项选择]During a training exercise a submarine indicating that a torpedo has been fired will send up smoke from a float. The smoke’s color will be().
A. black
B. red
C. orange
D. yellow
[单项选择]The Emergency Position Indicating Radio beacon on a cargo vessel must be stowed().
A. in an inside passageway
B. in an approved bracket
C. so that it is accessible from the bridge of the vessel
D. so that it will float free if the vessel sinks
[单项选择]When should the emergency position-indicating radiobeacon be activated after abandoning a ship?()
A. Immediately
B. After one hour
C. Only when another vessel is in sight
D. Only after sunset
[单项选择]The vessel’s Emergency Position Indicating Radio beacon (EPIRB) must be tested().
A. weekly
B. monthly
C. every 2 months
D. every 3 months
[单项选择]The chart symbol indicating that the bottom is coral is ().
A. C
B. Cl
C. Co
D. c
[单项选择]An orange and white buoy indicating a vessel-exclusion area will be marked with what symbol? ()
A. Open-faced diamond
B. Diamond with a cross
C. Circle
D. Square
[单项选择]Isogonic lines are lines on a chart indicating ().
A. points of equal variation
B. points of zero variation
C. the magnetic latitude
D. magnetic dip
[单项选择]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]Which radiotelephone signal indicates receipt of a distress message?()
A. Roger wilco
B. Romeo,romeo,romeo
C. SOS acknowledged
D. Mayday roger