A.poor fix
B.good fix
C.poor signal quality
D.good signal quality
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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
A.two red lights
B.one green light
C.one white light
D.one amber light
A.circle of equal altitude
B.parallel of declination
C.parallel of altitude
D.vertical circle
A.straight line
B.arc
C.parabola
D.hyperbola
A.all-round yellow light only
B.all-round white light only
C.all-round blue light only
D.alternating red and yellow light
最新試題
The information on（）is not likely found in The Mariners Handbook.
Aboard a survival craft，ether can be used to（）.
The latest known details of lights are given in（）.
After being rescued from the vessel accident，the people agreed that they had much to（）.
The international number，location and/or name，geographical co-ordinates，characteristics and intensity，elevation in metres，range in sea miles and description of structure of a light can be found in（）.
A person who sees someone fall overboard should（）.
A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.
Many of the lights on this coast are placed so high as to be frequently obscured by（）.
Lines drawn through points on the Earth having the same atmospheric pressure are known as （）.
The Coast Radio Stations are found in（）.