航海英语甲板与船体保养章节练习(2019.05.02)

单项选择题
The purpose of the tripping line on a sea anchor is to（）.
A.Aid in casting off
B.Direct the drift of the vessel
C.Aid in its recovery
D.Maintain maximum resistance to broaching
单项选择题
The stevedores have already stowed the porcelain ware（）up to the deckhead.
A.loosely
B.closely
C.heavily
D.strongly
单项选择题
Mechanical gearing of deck machinery such as the windlass or boat hoists should（）.
A.be open to view so，if a foreign object gets in the gearing，the operator can immediately stop the machinery
B.have a guard over the gearing
C.be painted a contrasting color from the base color in order to call attention to the gearing
D.not be operated if there is any crew within 10 feet of the machinery
单项选择题
When lowering lifeboats in heavy seas，a good practice is to rig frapping lines（）.
A.on only the forward falls
B.on only the after falls
C.with a lead of about 45 degrees to the boat
D.from the falls to the main deck of the vessel
单项选择题
Tell the stevedores not to touch the goods（）the upper tweendeck of Hatch No.2.
A.on
B.in
C.at
D.into
单项选择题
An inland oil barge must have equipment available to remove an on-deck oil spill of at least（）.
A.one barrel
B.two barrels
C.five barrels
D.ten barrels
单项选择题
A shroud is（）.
A.any wire running fore-and-aft on a ship
B.any wire with a fiber core
C.a heavy wire extending from the trunk of the mast to the head of the boom
D.a heavy wire extending from the mast，atwartships to the deck，to support the mast
单项选择题
Which will cause a wire rope to fail（）.
A.Using a medium graphite grease as a lubricant
B.Operating a winch too slow
C.Using a sheave with an undersized throat
D.A sheave diameter of 24 times the wire's diameter
单项选择题
By definition，a spar deck is the（）.
A.lower most continuous deck not broken by water tight bulkheads
B.after most weather deck above the main strength deck
C.upper or weather deck above the main strength deck
D.deck of light construction below the main or strength deck
单项选择题
The angle of maximum righting arm corresponds approximatelyto the angle of（）.
A.deck edge immersion
B.the load line
C.downflooding
D.loll