A.urgency or an emergency
B.the vessel's national identity signal
C.a group from the general signal code
D.a group from the medical signal code
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A.Hard rubber
B.Canvas
C.Leather
D.Sponge rubber
A.at the lowest point
B.near the batteries
C.at the highest point
D.only when charging is in progress
A.take part
B.watch
C.go to their quarters
D.stay out of the way and do what they want
A.obliged
B.obliging
C.oblige
D.being obliged
A.repair
B.repaired
C.repairing
D.to repair
最新試題
Smoking in bed on a ship is prohibited（）.
Which may ignite fuel vapors?（）
The winch is liable（）worn-out in this way.
In battery charging rooms，ventilation should be provided（）.
Which method is used to detect rot in manila lines?（）
Which method of adjusting mooring lines is MOST useful for leaving a boat free to rise and fall with the tide?（）
Which statement is TRUE concerning radiotelephones on board towing vessels?（）
Which statement is TRUE with respect to the elasticity of nylon mooring lines?（）.
In order to prevent galvanic corrosion，an aluminum boat must be insulated from the davits and gripes. Which of the following is acceptable as an insulator?（）
Which mooring line is likely to undergo the most strain when docking a ship under normal conditions?（）