A.turn off all lights that interfere with the navigation lights
B.turn on all available working lights on deck
C.ring the bell rapidly for five seconds once a minute
D.display two black diamonds in a vertical line during the day
您可能感興趣的試卷
你可能感興趣的試題
A.Aye Aye Sir
B.Right 15 degrees rudder
C.Rudder is right 15 degrees
D.No reply is necessary，just carry out the order
A.heavy-walled drill pipe
B.tool joint
C.down hole tool
D.drill collar
A.main brace
B.tow span
C.jockey bar
D.None of the above
A.one sidelight
B.one sidelight and a masthead light
C.one sidelight and two masthead lights
D.both sidelights of a vessel and her masthead light(s)
A.vernier
B.psychrometer
C.hygrometer
D.stadimeter
最新試題
An inert gas system installed on a tanker is designed to（）.
A helmsman receives the command “Right 15 degrees rudder.”The helmsman’s IMMEDIATE reply should be（）.
A heavy steel curved arch constructed athwartships and above the after deck on a towing vessel is sometimes called a（）.
It is not necessary to declare（）in MARITIME HEALTH DECLARATION.
All ships（）suspected infectious disease on board should radio information to Port Health Officer.
A fire pump may be used for other purposes if（）.
Cargo transfer operations on a tank vessel need NOT be stopped when（）.
A green buoy has a yellow triangle on it. This is a(n)（）.
Please supply 200 tons of fresh water（）my ship.
A jack-up drilling rig being towed must（）.