NCCER MODULE 33302 PRACTICE EXAM
QUESTIONS WITH CORRECT ANSWERS 2025
TransmittingWpulsesWofWlightWintoWaWglassWorWplasticWfiber,WwhereWtheyWreflectWoffWtheWinnerWwallsWofWth
eWfiberWcoreWuntilWtheyWareWreceivedWatWtheWoppositeWendWofWtheWcableWisW_____W-
WCORRECTWANSWERW-theWbasicWtheoryWofWhowWaWfiberWopticWsystemWfunctions
AWphotosensitiveWdetectorWusedWtoWconvertWaWlightWsignalWbackWintoWanWelectricalWformWisWaW-
WCORRECTWANSWERW-receiver
ApplicationsWwhereWremoteWpoweringWofWdevicesWthatWmustWbeWelectricallyWisolatedWfromWaWpowerWsu
pply,WsuchWasWthoseWusedWinWexplosiveWenvironments,WcanWbenefitWfromWaWtechnologyWcalledW_____W-
WCORRECTWANSWERW-powerWoverWfiberWPoF
InW1870,WtheWBritishWphysicistWJohnWTyndallWusedWsunlightWandWaWstreamWofWwaterWtoWdemonstrateWho
wWlightW_____W-WCORRECTWANSWERW-
canWbeWchanneledWwithinWaWmediumWtoWfollowWaWdesignatedWpath
AWtypeWofWconnectionWerrorWthatWcreatesWeffectsWsimilarWtoWtheWcombinedWeffectsWofWaxialWdisplaceme
ntWandWendWseparationWisW_____W-WCORRECTWANSWERW-AngularWmisalignment
GenerallyWspeaking,Wsingle-modeWfiberWisWBESTWsuitedWforW-WCORRECTWANSWERW-
LongWdistance,HigherWbandwidthWapplication
OneWpathWthatWaWlightWrayWcanWtravelWthroughWtheWglassWcoreWofWanWopticalWfiberWisWcalledWaW-
WCORRECTWANSWERW-mode
TheWadditionalWcoating,WorWbuffer,WaroundWtheWcladdingWofWanWopticalWfiberW-WCORRECTWANSWERW-
doesWnotWinfluenceWtheWpropagationWofWlightWwithWtheWfiber
AWtypeWofWfiberWopticWcableWthatWusesWaWhardWplasticWtubeWwithWanWinsideWdiameterWseveralWtimesWlarg
erWthanWthatWofWtheWfiberWisWcalledW-WCORRECTWANSWERW-looseWtube
QUESTIONS WITH CORRECT ANSWERS 2025
TransmittingWpulsesWofWlightWintoWaWglassWorWplasticWfiber,WwhereWtheyWreflectWoffWtheWinnerWwallsWofWth
eWfiberWcoreWuntilWtheyWareWreceivedWatWtheWoppositeWendWofWtheWcableWisW_____W-
WCORRECTWANSWERW-theWbasicWtheoryWofWhowWaWfiberWopticWsystemWfunctions
AWphotosensitiveWdetectorWusedWtoWconvertWaWlightWsignalWbackWintoWanWelectricalWformWisWaW-
WCORRECTWANSWERW-receiver
ApplicationsWwhereWremoteWpoweringWofWdevicesWthatWmustWbeWelectricallyWisolatedWfromWaWpowerWsu
pply,WsuchWasWthoseWusedWinWexplosiveWenvironments,WcanWbenefitWfromWaWtechnologyWcalledW_____W-
WCORRECTWANSWERW-powerWoverWfiberWPoF
InW1870,WtheWBritishWphysicistWJohnWTyndallWusedWsunlightWandWaWstreamWofWwaterWtoWdemonstrateWho
wWlightW_____W-WCORRECTWANSWERW-
canWbeWchanneledWwithinWaWmediumWtoWfollowWaWdesignatedWpath
AWtypeWofWconnectionWerrorWthatWcreatesWeffectsWsimilarWtoWtheWcombinedWeffectsWofWaxialWdisplaceme
ntWandWendWseparationWisW_____W-WCORRECTWANSWERW-AngularWmisalignment
GenerallyWspeaking,Wsingle-modeWfiberWisWBESTWsuitedWforW-WCORRECTWANSWERW-
LongWdistance,HigherWbandwidthWapplication
OneWpathWthatWaWlightWrayWcanWtravelWthroughWtheWglassWcoreWofWanWopticalWfiberWisWcalledWaW-
WCORRECTWANSWERW-mode
TheWadditionalWcoating,WorWbuffer,WaroundWtheWcladdingWofWanWopticalWfiberW-WCORRECTWANSWERW-
doesWnotWinfluenceWtheWpropagationWofWlightWwithWtheWfiber
AWtypeWofWfiberWopticWcableWthatWusesWaWhardWplasticWtubeWwithWanWinsideWdiameterWseveralWtimesWlarg
erWthanWthatWofWtheWfiberWisWcalledW-WCORRECTWANSWERW-looseWtube