单项选择题
A.should be coiled in a clockwise direction B.should be coiled in a counterclockwise direction C.may be coiled either clockwise or counterclockwise D.should never be coiled
In the manufacture of wire rope，if the wires are shaped...
单项选择题In the manufacture of wire rope，if the wires are shaped to conform to the curvature of the finished rope before they are laid up，the rope is called（）.
A.composite B.left-lay C.improved D.preformed
In a twin screw ship going half-ahead，both screws turni...
单项选择题In a twin screw ship going half-ahead，both screws turning outboard and the rudder amidships，no current or wind，the vessel will（）.
A.Move bodily to port B.Move bodily to starboard C.Move in a zig-zag motion D.Steer a fairly straight course
In a married falls rig at the after end of a hatch，a bo...
单项选择题In a married falls rig at the after end of a hatch，a boom is rigged in a fore and aft line through its heel.Stresses on the outboard guy will be LEAST if the guy is made fast at a point（）.
A.Abreast the heel B.At right angles to the boom when viewed from above C.Aft of the heel D.Forward of the spiderband
