Hoisting & Rigging IHSA Safety Manual
exam with correct answers
Whentheweightsandcapacitiesareknowntheriggermustbe?-
✔✔Determinehowtolifttheloadsothatitisstable.
WLLstandsfor-✔✔Workingloadlimit
Distancefromthepowerlinesmorethan250000volt?-✔✔6Meters
Whatarethefactorsthatreducecapacity?-
✔✔Swing,Conditionofequipment,Dynamicforces,Weightoftackle
Aftertheslingwhichriggingequipmentismostlyused?-✔✔Sling
Whatistheangleofslingforaverticalload?-✔✔45
Whatisusedtocontrolallloads?-✔✔Taglines
Formulaofcalculatingweight?-✔✔sheetsbythicknessbyareabyweight
Whichthingsprotectworkersandpublic?-✔✔selectionofrope
Howmanytypesofconstructionillustrated?-✔✔4
Whatisthefieldcalculationformula?-✔✔WLL=diameterbydiameterby8
WhatistheWLLofdoublebaskethitch?-✔✔WLLbyH/Lby3
Ratchetjacksareusuallylimitedtocapacitiesunder?-✔✔20tons
Jackwhichcanliftup100tons?-✔✔hydraulic
Neverusejacksforlongterm?-✔✔support
Forcescalculatedby-✔✔F=WbyH/L+0.5W
Frictioncoefficientsforgrease?-✔✔15%
Loadonstructureformula?-✔✔Load+Loadlineload
ClampmightfitflangesOfhowmuchwide?-✔✔41/2to9"
Howmucherrorwecanseeinboomangle?-✔✔2degree
exam with correct answers
Whentheweightsandcapacitiesareknowntheriggermustbe?-
✔✔Determinehowtolifttheloadsothatitisstable.
WLLstandsfor-✔✔Workingloadlimit
Distancefromthepowerlinesmorethan250000volt?-✔✔6Meters
Whatarethefactorsthatreducecapacity?-
✔✔Swing,Conditionofequipment,Dynamicforces,Weightoftackle
Aftertheslingwhichriggingequipmentismostlyused?-✔✔Sling
Whatistheangleofslingforaverticalload?-✔✔45
Whatisusedtocontrolallloads?-✔✔Taglines
Formulaofcalculatingweight?-✔✔sheetsbythicknessbyareabyweight
Whichthingsprotectworkersandpublic?-✔✔selectionofrope
Howmanytypesofconstructionillustrated?-✔✔4
Whatisthefieldcalculationformula?-✔✔WLL=diameterbydiameterby8
WhatistheWLLofdoublebaskethitch?-✔✔WLLbyH/Lby3
Ratchetjacksareusuallylimitedtocapacitiesunder?-✔✔20tons
Jackwhichcanliftup100tons?-✔✔hydraulic
Neverusejacksforlongterm?-✔✔support
Forcescalculatedby-✔✔F=WbyH/L+0.5W
Frictioncoefficientsforgrease?-✔✔15%
Loadonstructureformula?-✔✔Load+Loadlineload
ClampmightfitflangesOfhowmuchwide?-✔✔41/2to9"
Howmucherrorwecanseeinboomangle?-✔✔2degree