FE EXAM (CHEMICAL) QUESTIONS AND
ANSWERS
Fluidjpropertyjmostjrelatedjtojflow?j-jans-Viscosity
PRVsjarejusedjinjwinejfermentationjtojpreventjover-
pressurizationjfromjwhichjofjthejfollowingjyeastjreactions?j-jans-
Thejyeastjproducesjcarbonjdioxidejduringjfermentation.
Metalsjwithjhighjhardnessjwilljalsojhavejwhichjofjthejfollowingjcharacteristics?j-jans-
Strongjintermolecularjbonding,jhighjtensilejstrength,jhighjyieldjstrength,jandjhighjabrasi
on/scratchjresistance.
Ifjanjaluminumjcrimpjconnectorjisjusedjtojconnectjajcopperjwirejtojajbattery,jwhatjwoul
djyoujexpectjtojhappen?j-jans-
Onlyjthejaluminumjconnectorjwilljcorrodej(aluminumjisjanodic(electronsjremovedjfromj
surface)jandjwilljcorrodejtojprotectjthejcopper).
Glassjisjanjamorphousjmaterial,jwhichjmeansjthat:j-jans-
Itjhasjnojapparentjcrystaljstructure.
Thej#jofjhydrogenjatomsjinjajmoleculejofjdodecanejis:j-jans-12j(do-two,jdecane-10)
WhichjanalyticaljequipmentjprovidesjthejbestjmethodjtojanalyzejthejHgjconcentrationjt
ojPPMjinjajgroundwaterjsample.j-jans-Atomicjadsorptionjunit.
Airjfromjaj100jpsigjsourcejisjfree-
flowingjdownjajlongjpipejdischargingjtojthejatmosphere.jThisjisjanjexamplejofjwhatjkin
djofjfluidjflow?j-jans-Compressiblejflow.
Whatjisjcharacterizedjbyjcompressiblejflow?j-jans-
Changingjdensityj(i.e.jthejdensityjofjajgasjflowingjfromj100jpsigjsourcejtojatmospherej
willjchangejdownjthejpipeline).
Whatjoccursjatjanjazeotrope?j-jans-
Thejvaporjandjliquidjcomponentsjofjajmixturejarejthejsame.
Whatjisjtruejregardingjflowjthroughjanjinsulatedjvalve?j-jans-
Thejupstreamjandjdownstreamjenthalpiesjarejequal.
ANSWERS
Fluidjpropertyjmostjrelatedjtojflow?j-jans-Viscosity
PRVsjarejusedjinjwinejfermentationjtojpreventjover-
pressurizationjfromjwhichjofjthejfollowingjyeastjreactions?j-jans-
Thejyeastjproducesjcarbonjdioxidejduringjfermentation.
Metalsjwithjhighjhardnessjwilljalsojhavejwhichjofjthejfollowingjcharacteristics?j-jans-
Strongjintermolecularjbonding,jhighjtensilejstrength,jhighjyieldjstrength,jandjhighjabrasi
on/scratchjresistance.
Ifjanjaluminumjcrimpjconnectorjisjusedjtojconnectjajcopperjwirejtojajbattery,jwhatjwoul
djyoujexpectjtojhappen?j-jans-
Onlyjthejaluminumjconnectorjwilljcorrodej(aluminumjisjanodic(electronsjremovedjfromj
surface)jandjwilljcorrodejtojprotectjthejcopper).
Glassjisjanjamorphousjmaterial,jwhichjmeansjthat:j-jans-
Itjhasjnojapparentjcrystaljstructure.
Thej#jofjhydrogenjatomsjinjajmoleculejofjdodecanejis:j-jans-12j(do-two,jdecane-10)
WhichjanalyticaljequipmentjprovidesjthejbestjmethodjtojanalyzejthejHgjconcentrationjt
ojPPMjinjajgroundwaterjsample.j-jans-Atomicjadsorptionjunit.
Airjfromjaj100jpsigjsourcejisjfree-
flowingjdownjajlongjpipejdischargingjtojthejatmosphere.jThisjisjanjexamplejofjwhatjkin
djofjfluidjflow?j-jans-Compressiblejflow.
Whatjisjcharacterizedjbyjcompressiblejflow?j-jans-
Changingjdensityj(i.e.jthejdensityjofjajgasjflowingjfromj100jpsigjsourcejtojatmospherej
willjchangejdownjthejpipeline).
Whatjoccursjatjanjazeotrope?j-jans-
Thejvaporjandjliquidjcomponentsjofjajmixturejarejthejsame.
Whatjisjtruejregardingjflowjthroughjanjinsulatedjvalve?j-jans-
Thejupstreamjandjdownstreamjenthalpiesjarejequal.
