更多"An all-round flashing yellow light "的相关试题:
[单项选择]An all-round flashing yellow light may be exhibited by a(n)().
A. vessel laying cable
B. vessel towing a submerged object
C. vessel not under command
D. air cushion vessel
[单项选择]A vessel showing a yellow light over a white light at night is a vessel().
A. engaged in piloting
B. towing astern
C. engaged in fishing
D. in distress
[单项选择]A towing light is a yellow light having the same characteristics as a(n)()
A. special flashing light
B. anchor light
C. sternlight
D. masthead light
[单项选择]A flashing light is a light that().
A. flashes at regular intervals at a frequency of 120 flashes or more per minute
B. is yellow in color
C. is visible over an arc of the horizon of not less than 180°nor more than 225°
D. All of the above
[单项选择]A yellow buoy may mark a(n)().
A. wreck
B. shoal area
C. anchorage area
D. middle ground
[单项选择]A yellow buoy may exhibit a(n)().
A. fixed red light
B. flashing light
C. white light
D. occulting light
[单项选择]A flashing green light displayed at a single lock means that the lock is().
A. ready for entrance
B. ready for entrance,but gates cannot be closed completely
C. being made ready for entrance
D. not ready for entrance
[单项选择]A flashing red light displayed at a single lock means that the lock().
A. is ready to use but vessels must stand clear
B. is ready to use and vessels may approach
C. cannot be made ready immediately and vessels shall stand clear
D. cannot be made ready immediately but vessels may approach
[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]A buoy with a composite group-flashing light indicates a(n)().
A. anchorage area
B. fish net area
C. bifurcation
D. dredging area
[单项选择]A message by flashing light consists of the call,the identity,the ending,and the().
A. reply
B. text
C. time
D. answer
[单项选择]A light characteristic of composite group flashing indicates that there is a(n)().
A. sharp turn in the channel
B. narrowing in the channel at that point
C. junction in the channel
D. obstruction that must be left to port
[单项选择]As defined in the Rules,a towing light is a yellow light having the same characteristics as a(n)().
A. masthead light
B. all-round light
C. sidelight
D. sternlight