A.Provides surface for applying force on machinery
B.Provides landing surface for the sounding bob
C.Absorbs machinery vibration
D.Prevents valve stem over-travel
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A.Wooden (lignum vitae) strips
B.Hard rubber
C.Resin bonded composition
D.Bronze bushings
A.Brown conical tower with white horizontal band in center of light on black pier
B.Red conical tower on brown cylindrical pier
C.White octagonal house on brown cylindrical pier
D.White conical tower，with brown band midway of height
A.detection，defects
B.defection，defects
C.defects，defection
D.defects，detection
A.cover plate
B.joiner
C.lap strake
D.stealer plate
A.domestics
B.settlers
C.deeps
D.peaks
最新試題
What can cause a lack of oxygen in a chain locker（）．
Which space cannot be deducted from gross tonnage when calculating net tonnage（）.
（）is not a longitudinal structural member.
While cranking out a quadrantal davit，slippage of the quadrant due to excessive wear or failure of the teeth in the quadrant will cause the（）.
When lowering manropes alongside a stage rigged over the side of a vessel，they should be allowed to trail in the water（）.
What is the purpose of a striker plate? （）
The strake on each side of the keel is called a（）.
The primary barrier of a bulk carrier is formed by（）.
Which space（s）is（are）deducted from gross tonnage to derive net tonnage（）.
The deadweight of a bulk carrier consists of（）.