A.working on the rig floor
B.working over water
C.working on the pipe racks
D.operating line throwing equipment
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A.on the prime vertical
B.on the celestial horizon
C.at lower transit
D.on the Greenwich meridian
A.quarter line
B.back line
C.peg line
D.jockey line
A.scissor wire
B.towing wire
C.breast wire
D.cross wire
A.List of Lights
B.Coast Pilot
C.Sailing Directions
D.List of Radiobeacons
A.giving
B.give
C.gives
D.given
最新試題
Many of the lights on this coast are placed so high as to be frequently obscured by（）.
After being rescued from the vessel accident，the people agreed that they had much to（）.
After being launched from a vessel，totally enclosed survival craft which have been afloat over a long period require（）.
The program of graphical predictions of height against time for a period of up to seven consecutive days is contained in（）.
The daily predictions of the times and heights of high and low water for a selection of Standard Ports are given in（）.
The information on（）is not likely found in The Mariners Handbook.
After the boat is at the top of the davit heads，the davit arms begin moving up the tracks and are stopped by the（）.
To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.
A sweep oar is an oar that is（）.
A man aboard a vessel，signaling by raising and lowering his outstretched arms to each side，is indicating（）.