A.with
B.in
C.to
D.on
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A.hard iron
B.soft iron
C.vertical iron only
D.horizontal iron only
A.operation of electrical equipment and generators on board ship
B.the earth's magnetic field affecting the ship's hard iron during construction
C.the horizontal component of the earth's magnetic field acting on the horizontal soft iron
D.the vertical component of the earth's magnetic field acting on the vertical soft iron
A.Appendicitis
B.Cholera
C.Plague
D.Typhus fever
A.Jaundice by fever
B.Acute skin rash or eruption with or without fever
C.Duodenitis
A.Drape along brackets
B.Leave in place while back loading cargo to save time
C.Hang vertically in the paint locker
D.All of the above
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Permanent magnetism is found in（）.
All ships（）suspected infectious disease on board should radio information to Port Health Officer.
A fire has broken out on the stern of your vessel. You should maneuver your vessel so the wind （）.
A heavy，thick-walled tube，usually steel，used between the drill pipe and the bit in the drill stem to weight the bit in order to improve its performance is called a（）.
A fire pump may be used for other purposes if（）.
Please supply 200 tons of fresh water（）my ship.
A safe fuel system must（）.
A green buoy has a yellow triangle on it. This is a(n)（）.
A jack-up drilling unit elevated on the Outer Continental Shelf must have a fog horn that will sound（）.
Entries should be made in a Ro-Ro vessel’s cargo-securing device record book for（）.