单项选择题

A contra-guide is a type of（）.

A.bow thruster
B.cargo gear
C.steering engine
D.rudder

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单项选择题

A common means of connecting shots of anchor chain in the field is to use a（）.

A.sprocket
B.Kenter link
C.swivel
D.end shackle

单项选择题

A chain stripper is used to（）.

A.prevent chain from clinging to the wildcat
B.clean the marine debris from the chain
C.flake chain from a boat's chain locker
D.clean chain prior to an x-ray inspection

单项选择题

A carling is used aboard ship（）.

A.as a connecting strap between the butted ends of plating
B.to stiffen areas under points of great stress between beams
C.to prevent the anchor from fouling when the brake is released
D.to provide an extra heavy fitting in a heavy lift cargo rig