单项选择题
A.Oil Rig chain and Oil Field Stud Link chain B.Flash-butt welded chain and Di-Lok chain C.Flash-butt welded chain and Oil Rig chain D.Oil Field Stud Link chain and Flash-butt welded chain
The Vessel is a（）bulk carrier which is permitted to car...
单项选择题The Vessel is a（）bulk carrier which is permitted to carry grain in bulk without requiring any fittings under the Rules of the 1974 International Safety of Life at Sea Convention.
A.Self-loading B.Self-trimming C.Self-unloading D.Self-discharging
The size of wire rope is determined by the（）.A.number o...
单项选择题The size of wire rope is determined by the（）.
A.number of strands B.number of wires in each strand C.circumference D.diameter
The safest procedure used to rig a guy and preventer is...
单项选择题The safest procedure used to rig a guy and preventer is to have the guy（）.
A.and preventer have equal stress B.stronger than the preventer to minimize the danger of separation C.take a lighter load than the preventer as a safety factor D.take the stress in case the preventer parts
