更多"A vessel may use any sound or light"的相关试题:
[单项选择]An all-round flashing yellow light may be exhibited by a(n)（）.
A. vessel not under command
B. air cushion vessel in the nondisplacement mode
C. vessel towing a submerged object
D. vessel engaged in diving operations
[单项选择]The nominal range of a light may be accurately defined as the maximum distance at which a light may be seen（）.
A. under existing visibility conditions
B. under perfect visibility
C. with ten miles visibility
D. with fifteen miles visibility
[单项选择]The maximum distance at which a light may be seen under the existing visibility conditions is called（）.
A. nominal range
B. luminous range
C. charted range
D. geographic range
[单项选择]When a vessel signals her distress by means of a gun or other explosive signal，the firing should be at intervals of approximately（）.
A. 10 minutes
B. 1 minute
C. 1 hour
D. 3 minutes
[单项选择]A drawbridge may use visual signals to acknowledge a vessel’s request to open the draw. Which signal indicates that the draw will NOT be opened immediately?（）
A. A flashing amber light
B. A fixed red light
C. A white flag raised and lowered vertically
D. A flashing white light
[单项选择]On every vessel，distress signals must be stowed（）.
A. on or near the navigating bridge
B. on the flying bridge not closer than 15 feet to any bulkhead
C. above the freeboard deck away from heat
D. in an enclosed space below the freeboard deck away from heat
[单项选择]Vessels in port may use（）for receiving typhoon warnings during the typhoon season.
A. their transmitters
B. their receivers
C. their radars
D. their lorans
[单项选择]You may use the hospital（）you clean it up afterward.
A. as far as
B. as well as
C. as soon as
D. so long as
[单项选择]An icebreaker may use the code letter “K” to remind ships of their obligation to listen continuously on their radio. This signal may be made by any of the following EXCEPT（）.
A. sound signal
B. light signal
C. visual signal
D. radiotelephone
[单项选择]May I use your dictionary? （）
A. Yes, here you are
B. No, you won't
C. Never mind
D. Sorry here it is
[单项选择]The outlet at a fire hydrant may be positioned anywhere from horizontal to pointing（）.
A. 45°upward
B. vertically upward
C. vertically downward
D. all of the above
[单项选择]May I use my credit card here?（）
A. You can't.
B. No one uses it.
C. I am afraid you can't.
D. Who told you?
[单项选择]Hurricanes may move in any direction．However，it is rare and generally of short duration when a hurricane in the Northern Hemisphere moves toward the（）.
A. West or northwest
B. Northeast
C. Southeast
D. North
[单项选择]May I use your bike for a moment?（）
A. It's well.
B. It doesn't matter.
C. By all means.
D. I have no idea.
[单项选择]A pilot vessel may continue to sound an identity signal if she is （）.
A. underway，but not making way
B. aground
C. being towed
D. not engaged in pilotage duty
[单项选择]The master of any vessel entering Singapore may （） radio pratique to the Port Health Officer through his local agent.
A. apply to
B. apply for
C. apply with
D. apply in
