單項(xiàng)選擇題A metal ring on the bottom of a block，to which the standing part of a tackle is spliced，is known as a(n)（）.
A.becket
B.loop
C.swivel
D.eye
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1.單項(xiàng)選擇題A metal object on the pier resembling a tree stump and made to receive mooring lines is a（）.
A.bight
B.bollard
C.chock
D.camel
2.單項(xiàng)選擇題A metal eye spliced into a wire is called a（）.
A.cyclops
B.fish eye
C.thimble
D.chip
3.單項(xiàng)選擇題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
4.單項(xiàng)選擇題A gypsy or gypsyhead is a（）.
A.punt used for painting over the side
B.small，reciprocating steam engine
C.spool-shaped drum fitted on a winch
D.swinging derrick
5.單項(xiàng)選擇題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