Exam (elaborations)
RIGGING PRACTICES QUESTIONS AND ANSWERS
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RIGGING PRACTICES QUESTIONS AND ANSWERS
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RIGGING PRACTICES QUESTIONS ANDANSWERS
Asloadschartsrangesdiagramscansbestsbesusedstoshelpsidentify:s-sans--netscapacity
forsmobilescranesworkingsatsmaximumsradius,sexceedingswhatspercentagesofsthescranessc
apacitysrequiressthesradiusstosbesverified?s-sans--80%
thesminimumsdepthsofsthreadsengagementsforsas1/2sinseyeboltsintossteelsobjectsis?s-sans--
3/4sin
whenstyingsknotssinssyntheticsropeslashing,sthesratedsloadsissincreasedsbys50%s?s-sans--
false
thessizesofsshacklesthatscansbesusedsinstheseyesofsaswiresropesslingsmustsbes________sthe
swiresropessize?s-sans--equalstosorsgreatersthan
asshacklesmustsbesmarkedswithsthesratedsload,sre-
inspectedsduesdate,sandsthesdatesmanufacture?s-sans--false
whensworkingsnearsenergizedspowerslinesswheresthescranesorsloadscouldscrosssthesabsol
uteslimitsofsapproach,swhatsadditionalsrequirementssmuststhescranesteamsfollow?s-sans--
designatedsspottersmustsbesstationedstoswatchsclearances
thesloadsweightsofsaspersonnelsliftsmustsnotsexceeds_____sofstheshoistssratedscapacitysforst
hesworkingsradiuss?s-sans--(50%)
asmanufacturer'sscertificatesofsproofstestsmayssatisfysthesinitialstestsrequirementssforsriggin
gsequipment?s-sans--false
whichsofsthesfollowingsoperatorsactionsswillsmostslikelyscausesasreductionsinsthescapacityso
fsasmobilescrane?s-sans--boomingsdown
ansangularspullsofs45sdegreessissallowedsonsnonsshoulderedstypeseyesbolts?s-sans--false
twosslingsscreatingsas60sdegreesslingsanglesaresusedstosliftsas4,000spoundsitem.sthesappro
priatesratedsloadsforseachsslingsiss2,000spounds.s-sans--false
whensaresloadssallowedstosbesmovedsoverspersonnel?s-sans--never
givensas1/2sinssteelswalledsemptyscylindricalstanksthatsissopenedsatsonesend,scalculatesitss
weights(roundsanswerstosthesnearestshundred)s-sans--1800slbs
, ascranesaccidentsoccursswhensanysonesofstheselementssinsthescranesoperatingsenvelopesf
ailsstosperformscorrectlysduringscranesoperations,smaintenance,sorstesting,swhichsresultssi
nsanysofsthesfollowingsexcept:s-sans--oversriggingsthesload
asstraight-lineshitchsissgoodsfors_____sofsasslingsratedsload?s-sans--100%
theresaresthreesslingsshangingsfromsashook.seachsslingshassasratedscapacitysofs2,000slbs.s
whatsissthesheaviestsloadsthatscouldsbesliftedsusingsthesesslingssifstheysweresattachedstosas
singlespoints-sans--2000slbs
whysmustshoistingsbesstoppedsoncesthesloadsisscompletelysoffsthesground?s-sans--
tosdeterminesslingsanglesstress
thesminimumscranesteamsconsistsofs?s-sans--thescranesoperatorsandsrigger-in-charge
whilestravelingsascraneswithsasload,sloadssshouldsbeskept?s-sans--asslowsasspossible
attachmentspointssmustsbesvisuallysinspected?s-sans--beforesandsafterseachsuse
whensriggingsyoursownsloads,syousaresresponsiblesfor?s-sans--allsofsthesabove
riggingsgearstestsandsinspectionsrecordssmustsinclude:s-sans--
allsofsthesinformationslistedsabove
thescranesoperatorsissresponsiblesforsthessafes_____sofsthescranes-sans--operation
ifsascranesteamsmembersseessansobstructionsinsthescranesoperatingsenvelopesthatscouldsp
osesasthreatstosthescranesoperations,swhatscoursesofsactionsissthesbeststostake?s-sans--
notifysthesoperatorsandsworkscautiouslysnearsthesobstruction
whatsissthesminimumsdistancesanyspartsofsthescranesorsloadsmaysapproachsansenergizedsp
owerslinesunders50,000svoltssduringsasproposedsoperation?s-sans--20ft
accordingstosthesNAVFACsP-307,swhatsaresthestwostypessofscranesliftss?s-sans--
complexsandsnonscomplex
whensmakingsasfour-
pointsliftsusingsslings,stheysshouldsnormallysbeschosenssuchsthats_____slegsshave/hassthes
capacitystossupportsthesentiresloadsweightsincludingsthesadditionalsstresssduestosliftingsang
le.s-sans--2
thesvolumesofsthescylindersiss______scubicsfeets-sans--9.42
calculatesthestensionsinslegsAs-sans--1607
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