I am in doubt as to your actions
My engines are full speed astern
I desire to overtake you
I am operating astern propulsion
第1题:
A light used to signal passing intentions must be an ______.
A.all-round yellow light only
B.all-round white light only
C.all-round blue light only
D.alternating red and yellow light
第2题:
A vessel is carrying three lights in a vertical line. The highest and lowest of these are red and the middle light is white. Which statement is always TRUE?
A.During the day,she would display three balls in a vertical line
B.If making way,she would show masthead lights at night
C.If at anchor,she need not show anchor lights while displaying identifying lights
D.Her fog signal would consist of a rapid ringing of a bell for five seconds every minute
第3题:
A. fiber dispersion
B. signal attenuation
C. transmitter power
D. amplifier bandwidth
E. receiver dispersion tolerance
第4题:
What are three factors that limit the maximum distance of an amplified optical signal without regeneration? ()
第5题:
What are three factors that limit the maximum distance of an amplified optical signal without regeneration? ()(Choose three.)
第6题:
A list signal of one white light indicates that the vessel is ______.
A.on an even keel
B.listing about 1° to the side the light is displayed on
C.listing over 5°With the light displayed on the high side
D.listing,and the chutes should be directed to the side where the light is displayed
第7题:
A light siglinal consisting of three flashes means ______.
A.I an in doubt as to your actions
B.My engines are full speed astern
C.I desire to overtake you
D.I am operating astern propulsion
第8题:
A light signal consisting of three flashes means ______.
A.I am in doubt as to your actions
B.My engines are full speed astern
C.I desire to overtake you
D.I am operating astern propulsion
第9题:
There is a ()(桅灯) on the mast.
第10题:
桅灯()