RIGGING MATH Q & S 2024 - 2025
How,close,should,your,weight,estimates,be?,,ANS,,Within,50#
When,estimating,the,weight,of,velour,,how,wide,should,you,estimate,the,fabric,to,be?,,ANS,,4',,since,it
,comes,in,54",widths,(the,extra,6",goes,to,the,hems)
How,do,you,estimate,the,weight,of,velour?,,ANS,,Divide,the,width,by,4',,multiply,by,the,number,of,yar
ds,high,,multiply,by,the,weight,of,the,material,(typically,in,oz.),,divide,by,16,to,convert,to,lbs.
How,much,is,1,kg?,,ANS,,2.2,lbs
What,is,kn,,and,how,much,is,it,in,lbs?,,ANS,,A,kilonewton,equals,224#.
Why,should,I,care,what,a,kilonewton,is?,,ANS,,We,take,a,lot,of,hardware,from,the,climbing/rescue,ind
ustry,,which,is,often,rated,in,kn.
How,much,is,22kn?,,ANS,,About,5000#.
How,do,you,calculate,shock,load?,,ANS,,Force,=,Weight(1+(Free,Fall,Distance/Stopping,Distance))
What,is,the,difference,between,dynamic,rope,and,static,rope?,,ANS,,Dynamic,rope,is,stretchy,to,increa
se,the,stopping,distance.
What's,the,hypotenuse,of,a,45-45-90,triangle?,,ANS,,sqrt,2,,or,about,1.41
How,do,you,calculate,the,resultant,forces,across,a,sheave?,,ANS,,Resultant,=,(tension)(SIN,angle)/(SIN(
angle/2))
How,much,of,an,evenly,distributed,load,is,carried,by,each,lift,line,on,a,4-
line,counterweight,system?,,ANS,,13%,on,the,outside,lines,,37%,on,the,inside,lines
How,close,should,your,weight,estimates,be?,,ANS,,Within,50#
When,estimating,the,weight,of,velour,,how,wide,should,you,estimate,the,fabric,to,be?,,ANS,,4',,since,it
,comes,in,54",widths,(the,extra,6",goes,to,the,hems)
How,do,you,estimate,the,weight,of,velour?,,ANS,,Divide,the,width,by,4',,multiply,by,the,number,of,yar
ds,high,,multiply,by,the,weight,of,the,material,(typically,in,oz.),,divide,by,16,to,convert,to,lbs.
How,much,is,1,kg?,,ANS,,2.2,lbs
What,is,kn,,and,how,much,is,it,in,lbs?,,ANS,,A,kilonewton,equals,224#.
Why,should,I,care,what,a,kilonewton,is?,,ANS,,We,take,a,lot,of,hardware,from,the,climbing/rescue,ind
ustry,,which,is,often,rated,in,kn.
How,much,is,22kn?,,ANS,,About,5000#.
How,do,you,calculate,shock,load?,,ANS,,Force,=,Weight(1+(Free,Fall,Distance/Stopping,Distance))
What,is,the,difference,between,dynamic,rope,and,static,rope?,,ANS,,Dynamic,rope,is,stretchy,to,increa
se,the,stopping,distance.
What's,the,hypotenuse,of,a,45-45-90,triangle?,,ANS,,sqrt,2,,or,about,1.41
How,do,you,calculate,the,resultant,forces,across,a,sheave?,,ANS,,Resultant,=,(tension)(SIN,angle)/(SIN(
angle/2))
How,much,of,an,evenly,distributed,load,is,carried,by,each,lift,line,on,a,4-
line,counterweight,system?,,ANS,,13%,on,the,outside,lines,,37%,on,the,inside,lines
