Generic Radiation Worker Training Utility
Employee Cert. Questions And Answers
10 bCFR b20 b- bcorrect banswers✔✔Volume b10, bPart b20 bof bthe bCode bof bFederal
bRegulations
Activation bProducts b- bcorrect banswers✔✔Non-radioactive bmaterial bthat bbecomes
bradioactive bafter bexposure bto bradiation bin ba bnuclear breactor.
Acute bRadiation bExposure b- bcorrect banswers✔✔A blarge bradiation bdose breceived bin
ba bshort bperiod bof btime, busually bless bthan b24 bhours
Administrative bGuidelines b- bcorrect banswers✔✔Dose badministrative bguidelines bset
bby butilities. bThese bguidelines bare blower bthan bthe bfederal blimits band bare bused bto
bhelp bcontrol bdose bincrease band bprevent bexceeding bfederal blimits.
Airborne bContamination b- bcorrect banswers✔✔Radioactive bmaterial b(contamination)
bcan bbecome bsuspended bin bair. bWork bactivities bcan bstir bup bloose bsurface
bcontamination. bIn bsome bcases bgrinding, bsanding, band bother babrasive btechniques
bcan bdislodge bfixed bcontamination band bcause bit bto bget binto bthe bair.
Airborne bRadioactivity bArea b- bcorrect banswers✔✔An barea bin bwhich bairborne
bradioactivity bexists bin bexcess bof b0.3 bDerived bAir bConcentration b(DAC) bor b12
bDAC-hours bin ba bweek. bThis bis bthe blevel bof bairborne bcontamination bat bwhich
bprotection bis bconsidered. bPreventing bairborne bis balways bconsidered bfirst. bUse bof
bventilation bsystems band bHEPA bfiltration bsystems bcan bremove bcontamination bfrom
bthe bair. bWork bpractices bsuch bas bwetting bsurfaces bwhile bgrinding band bothers bcan
balso bbe beffective.
ALARA b- bcorrect banswers✔✔As bLow bAs bReasonably bAchievable. bThe bpurpose bof
bALARA bis bto bkeep bthe bdose bof bboth bthe bindividual band bgroup binvolved bwith bthe
bperformance bof ba btask bas blow bas breasonably bachievable band bstill bget bthe btask
baccomplished. bThis bincludes binternal bas bwell bas bexternal bdose.
Alpha bRadiation b- bcorrect banswers✔✔A bpositively bcharged bparticle bthat bconsists bof
btwo bprotons band btwo bneutrons bbound btogether. bIt bis bemitted bby ban batomic
bnucleus bundergoing bradioactive bdecay band bis bidentical bto bthe bnucleus bof ba
, bhelium batom. bBecause bof btheir brelatively blarge bmass, balpha bparticles bare bthe
bslowest band bleast bpenetrating bforms bof bnuclear bradiation. bThey bcan bbe bstopped
bby ba bpiece bof bpaper.
Beta bRadiation b- bcorrect banswers✔✔One bof bthe bfour bcommon btypes bof bradiation
bfound bin ba bnuclear bplant. bBeta bradiation bis ban benergized bparticle bthe bsize bof ban
belectron. bFrom boutside bthe bbody bit bcan bpenetrate bto bthe bliving bskin blayers band
bthe blens bof bthe beye bbut bcannot bpenetrate binto bthe binternal borgans. bDose bto
borgans bcould bonly boccur bif bthe bradioactive bmaterial bgiving boff bbeta bradiation bis
binside bthe bbody.
Beta bWindow b- bcorrect banswers✔✔An bopening bor bwindow bused bon binstruments
bthat bdetect bradiation bto ballow bbeta bradiation bto bbe bmeasured. bSince bbeta
bradiation bcan bbe beasily bstopped bby bplastic bmaterials, bcommon bhousings bcan
bprevent bbeta bfrom bbeing bmeasured. bInstruments bcan bdistinguish bbetween bthe
bamount bof bbeta band bgamma bradiation.
Bioassay b- bcorrect banswers✔✔Determine bthe bamount bof bradioactive bmaterial bby
banalyzing bsamples bsuch bas bfecal bmatter bor burine.
Biological bEffects b- bcorrect banswers✔✔Relating bto bdamage bassociated bwith
bradiation bexposure bto bthe bhuman bbody. bTissue bdamage, bcell bdeath, bamd
bmutation bare bexamples bof bbiological beffects.
CEDE b- bcorrect banswers✔✔Committed bEffective bDose bEquivalent; bthe bamount bof
binternal bdose bthat brelates borgan bdose bto bthe bwhole-body bdose.
Chronic bRadiation bExposure b- bcorrect banswers✔✔A bseries bof bsmall bdoses bspread
bout bover ba blong bperiod bof btime, beven bmonths bor byears.
Contamination b- bcorrect banswers✔✔Occurs bwhen bradioactive bmaterial bgets boutside
bthe bplace bit bis bintended bto bbe. bWhen bthis bhappens, bthe bradiation bit breleases bis
bno blonger bcontrolled.
Contamination bControl b- bcorrect banswers✔✔Preventing bthe bspread bof bradioactive
bcontamination. bContamination bcontrol bprograms bresult bin bminimal bspread bof
bcontamination bthrough bthe bfacility. bNo bcontamination bshould bleave bthe
bradiologically bcontrolled bareas.
Contamination bMonitor b- bcorrect banswers✔✔Various bequipment band btechniques
bare bused bto bdetect b(monitor) bcontaminatio. bFriskers, btool bmonitors, band bpersonnel
bcontamination bmonitors bare bexamples. bLoose bcontamination bmust balso bbe
bmonitored. bTypically, btechnicians bsample bfor bloose bsurface bcontamination bby
brubbing ba bpiece bof bcloth bacross bthe bsurface bbeing bchecked band bthen bchecking
bto bsee bhow bmuch bcontamination bis bon bthe bcloth.
Employee Cert. Questions And Answers
10 bCFR b20 b- bcorrect banswers✔✔Volume b10, bPart b20 bof bthe bCode bof bFederal
bRegulations
Activation bProducts b- bcorrect banswers✔✔Non-radioactive bmaterial bthat bbecomes
bradioactive bafter bexposure bto bradiation bin ba bnuclear breactor.
Acute bRadiation bExposure b- bcorrect banswers✔✔A blarge bradiation bdose breceived bin
ba bshort bperiod bof btime, busually bless bthan b24 bhours
Administrative bGuidelines b- bcorrect banswers✔✔Dose badministrative bguidelines bset
bby butilities. bThese bguidelines bare blower bthan bthe bfederal blimits band bare bused bto
bhelp bcontrol bdose bincrease band bprevent bexceeding bfederal blimits.
Airborne bContamination b- bcorrect banswers✔✔Radioactive bmaterial b(contamination)
bcan bbecome bsuspended bin bair. bWork bactivities bcan bstir bup bloose bsurface
bcontamination. bIn bsome bcases bgrinding, bsanding, band bother babrasive btechniques
bcan bdislodge bfixed bcontamination band bcause bit bto bget binto bthe bair.
Airborne bRadioactivity bArea b- bcorrect banswers✔✔An barea bin bwhich bairborne
bradioactivity bexists bin bexcess bof b0.3 bDerived bAir bConcentration b(DAC) bor b12
bDAC-hours bin ba bweek. bThis bis bthe blevel bof bairborne bcontamination bat bwhich
bprotection bis bconsidered. bPreventing bairborne bis balways bconsidered bfirst. bUse bof
bventilation bsystems band bHEPA bfiltration bsystems bcan bremove bcontamination bfrom
bthe bair. bWork bpractices bsuch bas bwetting bsurfaces bwhile bgrinding band bothers bcan
balso bbe beffective.
ALARA b- bcorrect banswers✔✔As bLow bAs bReasonably bAchievable. bThe bpurpose bof
bALARA bis bto bkeep bthe bdose bof bboth bthe bindividual band bgroup binvolved bwith bthe
bperformance bof ba btask bas blow bas breasonably bachievable band bstill bget bthe btask
baccomplished. bThis bincludes binternal bas bwell bas bexternal bdose.
Alpha bRadiation b- bcorrect banswers✔✔A bpositively bcharged bparticle bthat bconsists bof
btwo bprotons band btwo bneutrons bbound btogether. bIt bis bemitted bby ban batomic
bnucleus bundergoing bradioactive bdecay band bis bidentical bto bthe bnucleus bof ba
, bhelium batom. bBecause bof btheir brelatively blarge bmass, balpha bparticles bare bthe
bslowest band bleast bpenetrating bforms bof bnuclear bradiation. bThey bcan bbe bstopped
bby ba bpiece bof bpaper.
Beta bRadiation b- bcorrect banswers✔✔One bof bthe bfour bcommon btypes bof bradiation
bfound bin ba bnuclear bplant. bBeta bradiation bis ban benergized bparticle bthe bsize bof ban
belectron. bFrom boutside bthe bbody bit bcan bpenetrate bto bthe bliving bskin blayers band
bthe blens bof bthe beye bbut bcannot bpenetrate binto bthe binternal borgans. bDose bto
borgans bcould bonly boccur bif bthe bradioactive bmaterial bgiving boff bbeta bradiation bis
binside bthe bbody.
Beta bWindow b- bcorrect banswers✔✔An bopening bor bwindow bused bon binstruments
bthat bdetect bradiation bto ballow bbeta bradiation bto bbe bmeasured. bSince bbeta
bradiation bcan bbe beasily bstopped bby bplastic bmaterials, bcommon bhousings bcan
bprevent bbeta bfrom bbeing bmeasured. bInstruments bcan bdistinguish bbetween bthe
bamount bof bbeta band bgamma bradiation.
Bioassay b- bcorrect banswers✔✔Determine bthe bamount bof bradioactive bmaterial bby
banalyzing bsamples bsuch bas bfecal bmatter bor burine.
Biological bEffects b- bcorrect banswers✔✔Relating bto bdamage bassociated bwith
bradiation bexposure bto bthe bhuman bbody. bTissue bdamage, bcell bdeath, bamd
bmutation bare bexamples bof bbiological beffects.
CEDE b- bcorrect banswers✔✔Committed bEffective bDose bEquivalent; bthe bamount bof
binternal bdose bthat brelates borgan bdose bto bthe bwhole-body bdose.
Chronic bRadiation bExposure b- bcorrect banswers✔✔A bseries bof bsmall bdoses bspread
bout bover ba blong bperiod bof btime, beven bmonths bor byears.
Contamination b- bcorrect banswers✔✔Occurs bwhen bradioactive bmaterial bgets boutside
bthe bplace bit bis bintended bto bbe. bWhen bthis bhappens, bthe bradiation bit breleases bis
bno blonger bcontrolled.
Contamination bControl b- bcorrect banswers✔✔Preventing bthe bspread bof bradioactive
bcontamination. bContamination bcontrol bprograms bresult bin bminimal bspread bof
bcontamination bthrough bthe bfacility. bNo bcontamination bshould bleave bthe
bradiologically bcontrolled bareas.
Contamination bMonitor b- bcorrect banswers✔✔Various bequipment band btechniques
bare bused bto bdetect b(monitor) bcontaminatio. bFriskers, btool bmonitors, band bpersonnel
bcontamination bmonitors bare bexamples. bLoose bcontamination bmust balso bbe
bmonitored. bTypically, btechnicians bsample bfor bloose bsurface bcontamination bby
brubbing ba bpiece bof bcloth bacross bthe bsurface bbeing bchecked band bthen bchecking
bto bsee bhow bmuch bcontamination bis bon bthe bcloth.
