航海英语水手工艺章节练习(2019.04.25)

单项选择题
A preventer guy（）.
A.prevents anyone from working the cargo at unauthorized times
B.is a safety measure in case one of the outboard guys parts
C.is a longshoreman who watches for accidents
D.is the same as a blacksmith
单项选择题
A face line is used to（）.
A.prevent barge movement in a lock
B.secure two barges end-to-end
C.secure barges to the towboat
D.secure barges side-by-side
单项选择题
A piece of small stuff (small line) secured to an object to prevent it from going adrift is a（）.
A.lanyard
B.keeper
C.noose
D.stopper
单项选择题
The cheek length of a block in inches should be about（）.
A.three times the circumference of a manila line
B.five times the diameter of a manila line
C.twice the diameter of its sheaves for manila line
D.twenty times the diameter of a manila line
单项选择题
A ketch is a sailing vessel with（）.
A.one mast
B.two masts: with the mizzen stepped abaft the rudder post
C.two masts: with the mizzen stepped forward of the rudder post
D.two masts: a foremast and a mainmast
单项选择题
A shroud is（）.
A.a light sail
B.a topmast stay
C.a sheet
D.standing rigging
单项选择题
A method used to make an eye in a bight of line where it cannot be spliced is known as（）.
A.braiding
B.plaiting
C.seizing
D.serving
单项选择题
What is likely to occur when you are surging synthetic mooring lines on the gypsyhead during mooring operations?（）
A.The lines may jam and then jump off the gypsyhead
B.If there is sudden strain on the line，the man tending the line may be pulled into the gypsyhead
C.The lines' surging may cause the vessel to surge
D.The heat generated may cause the lines to temporarily fuse to the gypsyhead
单项选择题
The revolving drum of a winch used to haul lines is called a（）.
A.bull gear
B.gypsyhead
C.spanner
D.wildcat
单项选择题
A flounder plate，on a topping lift，is（）.
A.a fairlead block
B.a swivel pin for the topping lift block
C.a triangular steel plate with a hole at each corner
D.the lower block of a multiple part topping lift