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chain questions

chain

QuestionAnswer
Chain with a twisted or.....links should be removed from service Dent
which is a better material choice for the construction of chain used for rigging: grade 8 alloy steel or wrought iron Grade 8 alloy steel
grade 10 steel chain shall be embossed with 10 or 100 true
It is acceptable to use chain without link identification marks for rigging purposes only false
because chain is made of individual links the failure of one link means complete failure of a chain true
manufactured repair links are not as strong as the original alloy steel chain link true
although alloy steel chain links will stretch up to 15 % before failing most of the stretch will occur after .....of the chains breaking strength has been reached 90%
all slings and equipment used for rigging must have a safety factor of 5:1
What is the formula to determine the WLL of a chain listed with a FoS less than 5 WLL x FoS = BS
......should be used on the corners of rectangular shaped loads softners
name four things a rigger should look for during a visual chain inspection stretching ,bends and twist,wear ,cuts and nicks
what is the purpose of cleaning a chain before beginning an inspection Expose defects
a chain is usually removed from service when wear reduces the diameter of any link by approximately..... Or more 10%
one method of determining if a chain has stretched is to measure each link and compare the measurements with the.... manufacturer specifications
if individual links bind they are probably over stretched true
Any cuts,nicks,or gouges that do not cause a 10% reduction in the chain should be ground smooth True
chain heated to 700degrees will not lose any of its WLL false
alloy chains that are heated to more than 1000 degrees f may remain in service for a short period of time false
It is acceptable safety practice to weld on alloy chain false
Created by: ewirtz0226
 

 



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