A.inB.onC.outD.withThe antennas of the trucks on deck a……

单项选择题Ship’s steering gear refers to（）.

A.cargo handling machines
B.deck winches and derricks
C.engine-room tools
D.course controlling system

单项选择题Shell plating is（）.

A.the galvanizing on steel
B.a hatch cover
C.the outer plating of a vessel
D.synonymous with decking

单项选择题Regulations require that access to a cargo pumproom in a tanker carrying grade D liquid cargo，shall be（）.

A.away from galleys，living quarters，or navigation spaces
B.only from areas equipped with power ventilation systems
C.from the open deck
D.isolated from sources of vapor ignition

单项选择题Prior to magnetic particle inspection of anchor chain，the chain should be（）.

A.degaussed
B.demagnetized
C.soaked
D.sandblasted

单项选择题Pollution regulations require that each scupper in an enclosed deck area have a（）.

A.wooden plug
B.soft rubber plug
C.two-piece soft patch
D.mechanical means of closing