A.shown at the bow
B.white in color
C.shown in addition to the stern light
D.an all-round light
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A.tug's engineroom or the bow
B.pilot house or aft steering station
C.forecastle
D.towing bitts by reaching over and releasing a lever
A.on course
B.headed fair
C.holding on
D.in shape
A.port and starboard strings
B.outer strings
C.drag strings
D.side strings
A.a mechanical breakdown on the tug
B.adverse tidal current conditions
C.the tug reducing its speed
D.All of the above
A.celestial meridian
B.celestial equator
C.celestial horizon
D.principal vertical circle
最新試題
A time diagram is a diagram on the plane of the（）.
A time diagram is a diagram of the celestial sphere as observed from above the（）.
A type of precipitation that occurs only in thunderstorms with strong convection currents that convey raindrops above and below the freezing level is known as（）.
A tug is best positioned for towing and maneuvering on rivers and other restricted waters where wave action is limited when（）.
A tackle is “two blocked” when the blocks are（）.
A thin，whitish，high cloud popularly known as “mares’ tails” is（）.
A sufficient amount of chain must be veered when anchoring a vessel to ensure（）.
A towline should be fastened to（）.
A swift current occurring in a narrow passage connecting two large bodies of water，which is produced by the continuously changing difference in height of tide at the two ends of the passage，is called a（）.
A twin-screw vessel with a single rudder is making headway. The engines are full speed ahead. There is no wind or current. Which statement is FALSE? （）