CHMM Practice Exam With Correct
Questions And Answers 2024
When epolonium e(atomic emass e210 e& eatomic enumber e84) eemits ean ealpha eparticle, ewhich
eof ethe efollowing edecay eproducts eresults?
a. eBismuth e(atomic emass e209 e& eatomic enumber e83)
b. eLead e(atomic emass e206 e& eatomic enumber e82)
c. eThallium e(atomic emass e204 e& eatomic enumber e81)
d. eMercury e(atomic emass e201 e& eatomic enumber e80) e- ecorrect eanswer.b. eLead e(atomic
emass e206 e& eatomic enumber e82)
Atomic eMass eis:
a. ethe enumber eof eprotons ein ethe enucleus
b. ethe etotal enumber eof eprotons e& eneutrons ein ethe enucleus
c. ea enuclear eparticle ethat ehas ean eatomic eweight eof eone eand eis eelectrically eneutral
d. ea eparticle ethat econtains eall ethe epositive echarge eand eessentially eall ethe eweight eof ethe
eatom e- ecorrect eanswer.b. ethe etotal enumber eof eprotons e& eneutrons ein ethe enucleus
Which eof ethe efollowing eis enot ea echemical easphyxiant?
ea. ecarbon emonoxide
eb. ecarbon edioxide
ec. ehydrogen esulfide
ed. ehydrogen ecyanide e- ecorrect eanswer.c. ehydrogen esulfide
Which eof ethe efollowing edisplaces eoxygen ebut edoes enot eactually einterfere ewith e
the ehuman ebody's eability eto euse eoxygen?
ea. ecarbon edioxide
eb. enitrogen
ec. enoble egases
ed. eall eof ethe eabove e- ecorrect eanswer.d. eall eof ethe eabove
Which eof ethe efollowing estatements eregarding eoxidation eis ealways ecorrect?
a. eoxygen emust ebe ea echemical ereactant efor ean eoxidation ereaction eto eoccur e
b. eoxidation eis ea eviolent ereaction ethat ealways eproduces eheat eand elight e
c. eoxidation ealways eresults ein eat eleast eone eelectron ebeing etransferred efrom eone eatom eto
eanother e
,d. ethe evalence eof ethe eatom eis ereduced eoccurs ewhen eit egives eup ean eoxidation eelectron e-
ecorrect eanswer.c. eoxidation ealways eresults ein eat eleast eone eelectron ebeing etransferred
efrom eone eatom eto eanother
Which eof ethe efollowing eseven esteps efor epreparing ehazardous ematerials efor etransport eis
ein ethe ecorrect eorder?
ea. eproper eshipping ename, eclassify, epackage, emark, elabel, epaperwork, eplacard
eb. eclassify, eproper eshipping ename, epackage, emark, elabel, epaperwork, eplacard
ec. epackage, eclassify, eproper eshipping ename, emark, elabel, epaperwork, eplacard
ed. epackage, emark, elabel, eclassify, eproper eshipping ename, epaperwork, eplacard e- ecorrect
eanswer.b. eclassify, eproper eshipping ename, epackage, emark, elabel, epaperwork, eplacard
Boiling ePoint eis ethe etemperature eat ewhich:
a. ethe evapor epressure eof ea esolid ejust eequals eatmospheric epressure e
b. ethe evapor epressure eof ea eliquid eis egreater ethan eatmospheric epressure e
c. ethe evapor epressure eof ea eliquid eis eless ethan eatmospheric epressure e
d. ethe evapor epressure eof ea eliquid ejust eequals eatmospheric epressure e- ecorrect eanswer.d.
ethe evapor epressure eof ea eliquid ejust eequals eatmospheric epressure
Flash epoint eis ethe:
a. emaximum etemperature eof ea eliquid eat ewhich eit egive eoff evapors esufficient eto eform ean
eignitable emixture ewith eair
b. emaximum etemperature eof ea eliquid eat ewhich eit egives eoff evapors esufficient eto eform ean
eignitable emixture ewith ewater
c. eminimum etemperature eof ea eliquid eat ewhich eit egives eoff evapors esufficient eto eform ean
eignitable emixture ewith eair
d. eminimum etemperature eof ea eliquid eat ewhich eit egives eoff evapors esufficient eto eform ean
eignitable emixture ewith ewater e- ecorrect eanswer.c. eminimum etemperature eof ea eliquid eat
ewhich eit egives eoff evapors esufficient eto eform ean eignitable emixture ewith eair
BLEVE eis ethe eacronym efor:
a. eBoiling eLiquids eEvaporate eVery eExpensively e
b. eBoiling eLiquids eErode eVery eEfficiently e
c. eBoiling eLiquids eEnd eVapor eExplosions e
d. eBoiling eLiquid eExpanding eVapor eExplosion e- ecorrect eanswer.d. eBoiling eLiquid
eExpanding eVapor eExplosion
Cobalt-60 ehas ea e5 eyear ehalf elife. eIf ethe einitial eactivity eof ea eCobalt-60 esource eis e20 emCi,
ewhat eis ethe eactivity eafter e10 eyears ein emCi?
a. e5 e
b. e0 e
c. e2 e
d. e10 e- ecorrect eanswer.a. e5
The eexposure erate eat ea edistance eof e1 efoot efrom ea eradioactive esource eis e20 ernR/hr. eWhat
eis ethe eexposure erate ein emR/hr. eat e10 efeet?
, a. e0.1 e
b. e0.2 e
c. e0.3 e
d. e0.4 e- ecorrect eanswer.b. e0.2
Which eof ethe efollowing eis enot eregulated eby eEPA eas ean eenvironmentally etoxic emetal? e
a. earsenic e
b. elead
c. ecadmium
d. eiron e- ecorrect eanswer.d. eiron
Which eof ethe efollowing echemicals eis eheavier ethan eair?
Chemical eName eVapor eDensity
a. eMethane e0.55
b. eCarbon eMonoxide e0.97
c. eNitrogen e0.97
d. ePropane e1.52 e- ecorrect eanswer.d. ePropane e1.52
Which efederal estatute eregulates eboth estationary eand emobile epollutant esources?
a. eTSCA
b. eCAA
c. eCWA
d. eSDWA e- ecorrect eanswer.b. eCAA e(Clean eAir eAct)
In emg/m3, ewhat eis eequivalent eto e100 eppm efor ea egas ewith ea emolecular eweight eof e24.45?
a. e1
b. e10
c. e100
d. e1000 e- ecorrect eanswer.c. e100
RCRA echaracteristic ewastes eare: e
a. ecorrosive eonly e
b. ereactive eand eignitable eonly e
c. eignitable eand ecorrosive eonly e
d. etoxic, eignitable, ereactive eor ecorrosive e- ecorrect eanswer.d. etoxic, eignitable, ereactive eor
ecorrosive
A eUST eis edefined eas e"any eone eor ecombination eof etanks ewhich eis eused eto econtain ean
accumulation eof eregulated esubstances, eand ethe evolume eof ewhich eincluding ethe evolume
eof eunderground epipes econnected ethereto eis":
a. eTwenty epercent eor emore ebeneath ethe esurface eof ethe eground e
b. eOne ehundred epercent ebeneath ethe esurface eof ethe eground e
c. eFifty epercent eor emore ebeneath ethe esurface eof ethe eground e
d. eTen epercent eor emore ebeneath ethe esurface eof ethe eground e- ecorrect eanswer.d. eTen
epercent eor emore ebeneath ethe esurface eof ethe eground
Questions And Answers 2024
When epolonium e(atomic emass e210 e& eatomic enumber e84) eemits ean ealpha eparticle, ewhich
eof ethe efollowing edecay eproducts eresults?
a. eBismuth e(atomic emass e209 e& eatomic enumber e83)
b. eLead e(atomic emass e206 e& eatomic enumber e82)
c. eThallium e(atomic emass e204 e& eatomic enumber e81)
d. eMercury e(atomic emass e201 e& eatomic enumber e80) e- ecorrect eanswer.b. eLead e(atomic
emass e206 e& eatomic enumber e82)
Atomic eMass eis:
a. ethe enumber eof eprotons ein ethe enucleus
b. ethe etotal enumber eof eprotons e& eneutrons ein ethe enucleus
c. ea enuclear eparticle ethat ehas ean eatomic eweight eof eone eand eis eelectrically eneutral
d. ea eparticle ethat econtains eall ethe epositive echarge eand eessentially eall ethe eweight eof ethe
eatom e- ecorrect eanswer.b. ethe etotal enumber eof eprotons e& eneutrons ein ethe enucleus
Which eof ethe efollowing eis enot ea echemical easphyxiant?
ea. ecarbon emonoxide
eb. ecarbon edioxide
ec. ehydrogen esulfide
ed. ehydrogen ecyanide e- ecorrect eanswer.c. ehydrogen esulfide
Which eof ethe efollowing edisplaces eoxygen ebut edoes enot eactually einterfere ewith e
the ehuman ebody's eability eto euse eoxygen?
ea. ecarbon edioxide
eb. enitrogen
ec. enoble egases
ed. eall eof ethe eabove e- ecorrect eanswer.d. eall eof ethe eabove
Which eof ethe efollowing estatements eregarding eoxidation eis ealways ecorrect?
a. eoxygen emust ebe ea echemical ereactant efor ean eoxidation ereaction eto eoccur e
b. eoxidation eis ea eviolent ereaction ethat ealways eproduces eheat eand elight e
c. eoxidation ealways eresults ein eat eleast eone eelectron ebeing etransferred efrom eone eatom eto
eanother e
,d. ethe evalence eof ethe eatom eis ereduced eoccurs ewhen eit egives eup ean eoxidation eelectron e-
ecorrect eanswer.c. eoxidation ealways eresults ein eat eleast eone eelectron ebeing etransferred
efrom eone eatom eto eanother
Which eof ethe efollowing eseven esteps efor epreparing ehazardous ematerials efor etransport eis
ein ethe ecorrect eorder?
ea. eproper eshipping ename, eclassify, epackage, emark, elabel, epaperwork, eplacard
eb. eclassify, eproper eshipping ename, epackage, emark, elabel, epaperwork, eplacard
ec. epackage, eclassify, eproper eshipping ename, emark, elabel, epaperwork, eplacard
ed. epackage, emark, elabel, eclassify, eproper eshipping ename, epaperwork, eplacard e- ecorrect
eanswer.b. eclassify, eproper eshipping ename, epackage, emark, elabel, epaperwork, eplacard
Boiling ePoint eis ethe etemperature eat ewhich:
a. ethe evapor epressure eof ea esolid ejust eequals eatmospheric epressure e
b. ethe evapor epressure eof ea eliquid eis egreater ethan eatmospheric epressure e
c. ethe evapor epressure eof ea eliquid eis eless ethan eatmospheric epressure e
d. ethe evapor epressure eof ea eliquid ejust eequals eatmospheric epressure e- ecorrect eanswer.d.
ethe evapor epressure eof ea eliquid ejust eequals eatmospheric epressure
Flash epoint eis ethe:
a. emaximum etemperature eof ea eliquid eat ewhich eit egive eoff evapors esufficient eto eform ean
eignitable emixture ewith eair
b. emaximum etemperature eof ea eliquid eat ewhich eit egives eoff evapors esufficient eto eform ean
eignitable emixture ewith ewater
c. eminimum etemperature eof ea eliquid eat ewhich eit egives eoff evapors esufficient eto eform ean
eignitable emixture ewith eair
d. eminimum etemperature eof ea eliquid eat ewhich eit egives eoff evapors esufficient eto eform ean
eignitable emixture ewith ewater e- ecorrect eanswer.c. eminimum etemperature eof ea eliquid eat
ewhich eit egives eoff evapors esufficient eto eform ean eignitable emixture ewith eair
BLEVE eis ethe eacronym efor:
a. eBoiling eLiquids eEvaporate eVery eExpensively e
b. eBoiling eLiquids eErode eVery eEfficiently e
c. eBoiling eLiquids eEnd eVapor eExplosions e
d. eBoiling eLiquid eExpanding eVapor eExplosion e- ecorrect eanswer.d. eBoiling eLiquid
eExpanding eVapor eExplosion
Cobalt-60 ehas ea e5 eyear ehalf elife. eIf ethe einitial eactivity eof ea eCobalt-60 esource eis e20 emCi,
ewhat eis ethe eactivity eafter e10 eyears ein emCi?
a. e5 e
b. e0 e
c. e2 e
d. e10 e- ecorrect eanswer.a. e5
The eexposure erate eat ea edistance eof e1 efoot efrom ea eradioactive esource eis e20 ernR/hr. eWhat
eis ethe eexposure erate ein emR/hr. eat e10 efeet?
, a. e0.1 e
b. e0.2 e
c. e0.3 e
d. e0.4 e- ecorrect eanswer.b. e0.2
Which eof ethe efollowing eis enot eregulated eby eEPA eas ean eenvironmentally etoxic emetal? e
a. earsenic e
b. elead
c. ecadmium
d. eiron e- ecorrect eanswer.d. eiron
Which eof ethe efollowing echemicals eis eheavier ethan eair?
Chemical eName eVapor eDensity
a. eMethane e0.55
b. eCarbon eMonoxide e0.97
c. eNitrogen e0.97
d. ePropane e1.52 e- ecorrect eanswer.d. ePropane e1.52
Which efederal estatute eregulates eboth estationary eand emobile epollutant esources?
a. eTSCA
b. eCAA
c. eCWA
d. eSDWA e- ecorrect eanswer.b. eCAA e(Clean eAir eAct)
In emg/m3, ewhat eis eequivalent eto e100 eppm efor ea egas ewith ea emolecular eweight eof e24.45?
a. e1
b. e10
c. e100
d. e1000 e- ecorrect eanswer.c. e100
RCRA echaracteristic ewastes eare: e
a. ecorrosive eonly e
b. ereactive eand eignitable eonly e
c. eignitable eand ecorrosive eonly e
d. etoxic, eignitable, ereactive eor ecorrosive e- ecorrect eanswer.d. etoxic, eignitable, ereactive eor
ecorrosive
A eUST eis edefined eas e"any eone eor ecombination eof etanks ewhich eis eused eto econtain ean
accumulation eof eregulated esubstances, eand ethe evolume eof ewhich eincluding ethe evolume
eof eunderground epipes econnected ethereto eis":
a. eTwenty epercent eor emore ebeneath ethe esurface eof ethe eground e
b. eOne ehundred epercent ebeneath ethe esurface eof ethe eground e
c. eFifty epercent eor emore ebeneath ethe esurface eof ethe eground e
d. eTen epercent eor emore ebeneath ethe esurface eof ethe eground e- ecorrect eanswer.d. eTen
epercent eor emore ebeneath ethe esurface eof ethe eground
