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
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A.degaussed
B.demagnetized
C.soaked
D.sandblasted
A.wooden plug
B.soft rubber plug
C.two-piece soft patch
D.mechanical means of closing
A.drop strakes
B.stealers
C.throughs
D.voids
A.help keep the deck dry
B.prevent stress concentrations on the stringer plate
C.protect against twisting forces exerted on the frame of the vessel
D.reinforce the side stringers
A.plating
B.beam
C.stiffener
D.stanchion
最新試題
One function of a bulwark is to（）.
Fuel oil tank vents are fitted with a screen which will stop（）.
The opening in the deck that leads the anchor cable outside the hull is the（）.
Ship’s steering gear refers to（）.
Owing to the greater girth of a ship amidships than at the ends，certain strakes are dropped as they approach the bow and stern to reduce the amount of plating at the ends. These strakes are called（）.
On a ship，the deck stringer is the outboardmost deck（）.
The perforated，elevated bottom of the chain locker，which prevents the chains from touching the main locker bottom and allows seepage water to flow to the drains，is called a（）.
In vessel construction，a greater number of watertight bulkheads results in（）.
A wildcat is a（）.
Prior to magnetic particle inspection of anchor chain，the chain should be（）.