A.lanyard B.keeper C.noose D.stopper
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
A.to sail B.sails C.sailing D.sailed
A.screw pump B.centrifugal pump C.eductor D.gear pump
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
