DOE CORE (RCT) PRACTICE EXAM Q
AND A
AtomicbvMassbv-bvanswer--ThebvactualbvweightbvofbvabvparticularbvisotopebvinbvAMU
Thebvatomicbv#bvisbvthebv#bvof:bv-bvanswer--Protonsbvinbvthebvnucleus
Thebvperiodicbvtablebvofbvthebvelementsbvlistsbvallbvknownbvelementsbvinbvorderbvof:bv-
bvanswer--Increasingbvatomicbv#
Anbvactionbvonbvanbvobjectbvthatbvcouldbvcausebvthebvobjectbvtobvchangebvspeedbvorbvdirecti
onbvisbvidentifiedbvasbv-bvanswer--Force
ThebvLawbvofbvConservationbvofbvEnergybvstatesbvthatbvthe:bv-bvanswer--
Totalbvamountbvofbvenergybvinbvabvclosedbvsystembvremainsbvunchanged
Whenbvthebvnucleonsbvarebvcombinedbvtobvformbvabvnucleusbvsomebvofbvthebvmassbvis:bv-
bvanswer--Convertedbvtobvbinding.bvenergy
ThebvequationbvE=mc^2bvstatesbvthat:bv-bvanswer--Massbv&bvenergybvarebvequivalent
Whenbvtwobvorbvmorebvlightbvnucleibvcombinebvtobvfrombvabvlargebvnucleusbvinbvfusion,bvthisb
vchangesbvthe:bv-bvanswer--Bindingbvenergy
Isotopesbvarebvdefinedbvasbvnuclidesbvw/bvthebvsame:bv-bvanswer--
#bvofbvprotonsbvbutbvabvdifferentbv#bvofbvneutrons
Thebvaveragebvdose,bvtobvthebvgeneralbvpopulationbvofbvthebvUS,bvfrombvallbvcombinedbvme
dicalbvexposuresbvasbvpartbvofbvman-
madebvbackgroundbvradiationbvsourcesbvisbvapproximatelybv-bvanswer--53bvmRem/yr
Thebvaveragebvdose,bvtobvthebvgeneralbvpopulationbvofbvthebvUS,bvfrombvconsumerbvprodu
ctsbvasbvpartbvofbvman-madebvbackgroundbvradiationbvsourcesbvisbvapproximatelybv-
bvanswer--10bvmRem/yr
Thebvfactorbvwhichbvcontributesbvthebvgreatestbvvariabilitybvinbvdosebvfrombvnaturalbvcosmi
cbvbackgroundbvradiationbvisbv-bvanswer--Altitude
Alphabvradiationbvisbvdefinedbvas:bv-bvanswer--Abvheavybvparticlebvw/
bvabvmassbvofbv4bvamubv&bvabvchargebvofbv+2bvthatbvisbvemittedbvfrombvthebvnucleus
Radbv-bvanswer--Abvunitbvofbvabsorbedbvdose
Half-lifebv-bvanswer--Thebvlengthbvofbvtimebvrequiredbvforbvone-
halfbvofbvthebvoriginalbv#bvofbvnucleibvtobvdisintegrate
AND A
AtomicbvMassbv-bvanswer--ThebvactualbvweightbvofbvabvparticularbvisotopebvinbvAMU
Thebvatomicbv#bvisbvthebv#bvof:bv-bvanswer--Protonsbvinbvthebvnucleus
Thebvperiodicbvtablebvofbvthebvelementsbvlistsbvallbvknownbvelementsbvinbvorderbvof:bv-
bvanswer--Increasingbvatomicbv#
Anbvactionbvonbvanbvobjectbvthatbvcouldbvcausebvthebvobjectbvtobvchangebvspeedbvorbvdirecti
onbvisbvidentifiedbvasbv-bvanswer--Force
ThebvLawbvofbvConservationbvofbvEnergybvstatesbvthatbvthe:bv-bvanswer--
Totalbvamountbvofbvenergybvinbvabvclosedbvsystembvremainsbvunchanged
Whenbvthebvnucleonsbvarebvcombinedbvtobvformbvabvnucleusbvsomebvofbvthebvmassbvis:bv-
bvanswer--Convertedbvtobvbinding.bvenergy
ThebvequationbvE=mc^2bvstatesbvthat:bv-bvanswer--Massbv&bvenergybvarebvequivalent
Whenbvtwobvorbvmorebvlightbvnucleibvcombinebvtobvfrombvabvlargebvnucleusbvinbvfusion,bvthisb
vchangesbvthe:bv-bvanswer--Bindingbvenergy
Isotopesbvarebvdefinedbvasbvnuclidesbvw/bvthebvsame:bv-bvanswer--
#bvofbvprotonsbvbutbvabvdifferentbv#bvofbvneutrons
Thebvaveragebvdose,bvtobvthebvgeneralbvpopulationbvofbvthebvUS,bvfrombvallbvcombinedbvme
dicalbvexposuresbvasbvpartbvofbvman-
madebvbackgroundbvradiationbvsourcesbvisbvapproximatelybv-bvanswer--53bvmRem/yr
Thebvaveragebvdose,bvtobvthebvgeneralbvpopulationbvofbvthebvUS,bvfrombvconsumerbvprodu
ctsbvasbvpartbvofbvman-madebvbackgroundbvradiationbvsourcesbvisbvapproximatelybv-
bvanswer--10bvmRem/yr
Thebvfactorbvwhichbvcontributesbvthebvgreatestbvvariabilitybvinbvdosebvfrombvnaturalbvcosmi
cbvbackgroundbvradiationbvisbv-bvanswer--Altitude
Alphabvradiationbvisbvdefinedbvas:bv-bvanswer--Abvheavybvparticlebvw/
bvabvmassbvofbv4bvamubv&bvabvchargebvofbv+2bvthatbvisbvemittedbvfrombvthebvnucleus
Radbv-bvanswer--Abvunitbvofbvabsorbedbvdose
Half-lifebv-bvanswer--Thebvlengthbvofbvtimebvrequiredbvforbvone-
halfbvofbvthebvoriginalbv#bvofbvnucleibvtobvdisintegrate
