单项选择题

What is used to prevent twisting of a towing bridle?（）

A.A bitt
B.A bulkhead
C.A V-spring
D.A fishplate

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单项选择题

What is the purpose of cant frames in steel vessels? （）

A.To support the overhang of the stern
B.To provide strength to shell plating at the stern
C.To add strength to the deck beams which support the weather decks
D.To support the plating of a cylindrical tank

单项选择题

What is the purpose of a striker plate? （）

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

单项选择题

What is NOT used as a stern tube bearing，on a large vessel? （）

A.Wooden (lignum vitae) strips
B.Hard rubber
C.Resin bonded composition
D.Bronze bushings