单项选择题
A.have equal legs of sufficient length B.have a large angle between the legs C.be formed on a bight of cable through a ring D.never be made up of chain
A tow bridle is attached to the main tow hawser at the(...
单项选择题A tow bridle is attached to the main tow hawser at the().
A.bight ring B.tow hook C.fishplate D.swivel
A term used to describe the dip in a towline that acts ...
单项选择题A term used to describe the dip in a towline that acts as a shock absorber is().
A.catenary B.step C.shock dip D.bight
A solution to overcome tripping defects is an arrangeme...
单项选择题A solution to overcome tripping defects is an arrangement of special plates on either side of the flukes,designed to set them in the correct tripping position. These special plates are called().
A.trippers B.stocks C.stabilizers D.palms