Maintenance Exam: Practice Exam #1 (Dewalt - 2017)Questions And Answers

MAINTENANCE EXAM: PRACTICE
EXAM #1 (DEWALT - 2017)QUESTIONS
AND ANSWERS

TheyNationalyElectricyCodey(NEC)yisyNOTy____________.
A.ydesignedyforyfutureyexpansionyofyelectricalyuse.
B.ydesignedytoysafeguardypeopleyandypropertyyfromyelectricalyhazards.
C.ypublishedybyytheyNFPA.
D.yintendedyasyminimumyelectricalystandardsyandyspecificationsyforytrainedypersons.y-
yanswer--A.ydesignedyforyfutureyexpansionyofyelectricalyuse.

90.1(A)y&y(B)ypg.y30

TheyNECymandatesyspecificybranch-
circuits,yreceptacleyoutlets,yandyutilizationyequipmentytoybeyprovidedywithyayground-
faultycircuityinterruptery(GFCI);ythisydeviceyisyintendedy_______.
A.ytoypreventyoverloadingytheyconductors.
B.ytoypreventyoverloadingytheycircuitybreakers.y
C.yforytheyprotectionyofyequipmentyfromyoverloads.
D.yforytheyprotectionyofypersonnel.y-yanswer--D.yforytheyprotectionyofypersonnel.
Articley100yDefinitionypg.y37

Electricalywiringyinstalledy______yisyconsideredytoybeyinstalledyinyaydampylocation.
A.yunderycanopiesyoryroofedyopenyporches.
B.yunderground.
C.youtside.
D.ynoneyofytheseyapply.y-yanswer--A.yunderycanopiesyoryroofedyopenyporches.
Articley100yDefinitionypg.y38

Whenyay20-ampere,y125-
voltyreceptacleyoutletyisyinstalled,yinywhichyofytheyfollowingylistedylocationsyisytheyrecept
acleyrequiredytoyhaveyGFCIyprotection?y
A.yinyayclassroomyofyanyeducationalyfacility.
B.yinytheylobbyyofyaymovieytheater.y
C.yunderyanyoutdoorycanopy,ynearytheyentranceyofyaypublicylibraryy
D.yinytheywalkwayyofyanyindooryretailyshoppingymally-yanswer--
C.yunderyanyoutdoorycanopy,ynearytheyentranceyofyaypublicylibraryy
210.8(B)(4)ypg.y59

Whichyofytheyfollowingyisyayunityofyelectricalypower?
A.ywatt
B.yvoltage
C.yresistancey
D.yconductancey-yanswer--A.ywatt
GeneralyKnowledge

, Whenycheckingyforycontinuityybetweenycircuitybreakeryandytheyneutralybaryofytheypanel
boardywhenyusingyaycontinuityytester,ypositiveycontinuityyisyindicated.yTheyreasonymayy
beythaty________.
I.yayconductoryisygrounded.
II.yayluminaireyoryanyapplianceymayybeyturnedyon.
A.yIyonly
B.yIIyonly
C.yeitheryIyoryII
D.yneitheryIynoryIIy-yanswer--C.yeitheryIyoryII
GeneralyKnowledge

Whenyinstallingyelectricalymetallicytubingy(EMT),ythereyshallybeyNOymoreythany____y90
-degreeybendsyinytheytubingybetweenyboxesyand/orypullypoints.
A.ythree
B.yfour
C.yfive
D.ysixy-yanswer--B.yfour
358.26ypg.y210

Theyfull-loadyrunningycurrentyofyay3-hp.y208-volt,ysingle-phase,ycontinuous-
dutyyACymotoryisy________.
A.y10.6yamperes
B.y19.6yamperes
C.y13.2yamperes
D.y18.7yamperesy-yanswer--D.y18.7yamperes
Tabley430.248ypg.y321

Whereymoreythanythreey(3)ycurrent-
carryingyconductorsyareyinstalledyinyayraceway,ytheyampacityyadjustmentyfactorsyshow
nyiny______yofytheyNECyshallybeyapplied.
A.yTabley310.15(B)(16)
B.yTabley310.15(B)(3)(a)
C.yTabley310.15(B)(2)(a)
D.yTabley310.15(B)(2)(b)y-yanswer--B.yTabley310.15(B)(3)(a)
310.15(B)(3)ypg.y147
Tabley310.15(B)(3)(a)ypg.y148

Ifytheyvoltage-dropyofyaybranch-
circuityisytooygreat,ywhichyofytheyfollowing,yifyany,ymayybeytheyresult?
I.yUnsatisfactoryyilluminationyofylightingyfixtures.
II.yOverheatingyofyaymotoryoryunsatisfactoryymotoryspeed.
A.yIyonly
B.yIIyonly
C.ybothyIyandyII
D.yneitheryIynoryIIy-yanswer--C.ybothyIyandyII
TradeyKnowledge