航海英语船舶修理与保养章节练习(2018.01.05)

单项选择题
A chain bridle is used when towing astern because it（）.
A.Is easy to connect
B.Provides an effective catenary and absorbs shock due to its weight
C.Makes rigging a swivel unnecessary
D.Prevents the tow from yawing by the drag of the chains in a seaway
单项选择题
The Chief Petty Officer employed in the repair and maintenance work shall such abilities as to prepare and apply（）.
A.primers and paints
B.painters
C.promisers
D.compromisers
单项选择题
The Loran needs（）.
A.repairing
B.to repair
C.repairs
D.have repaired
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
A cargo boom is a（）.
A.double sized mattress consists of more than 890 coils
B.spar extending from a mast or a king post
C.flap（Becker rudder）can be fitted to the rudder’s trailing edge
D.bridle arrangement having a long beam of the length of the container
单项选择题
The strongest of the natural fiber ropes is（）.
A.Nylon
B.Dacron
C.Manila
D.Sisal
单项选择题
What can be used to measure the percentage of oxygen inside a chain locker?（）
A.Flame safety lamp
B.Combustible gas indicator
C.Oxygen indicator
D.H₂S meter
单项选择题
Small hull leaks can be temporarily repaired by（）.
A.parcelling
B.parbuckling
C.caulking
D.seizing
单项选择题
The square knot is used for（）.
A.forming temporary eyes in lines
B.joining two lines of equal size
C.keeping line from unlaying or fraying
D.joining two lines of different size
单项选择题
A block that can be opened at the hook or shackle end to receive a bight of the line is a（）.
A.bight block
B.gin block
C.heel block
D.snatch block