MASTER ELECTRICIAN EXAM REVIEW QUESTIONS AND CORRECT VERIFIED ANSWERS

MASTER ELECTRICIAN EXAM REVIEW
QUESTIONS AND CORRECT VERIFIED
ANSWERS
branchA2circuitA2-A2Ans--
ThatA2portionA2ofA2aA2wiringA2systemA2extendingA2beyondA2theA2finalA2overcurrentA2device
A2isA2calledA2the:


CalculatedA2loadA2-A2Ans--
TheA2finalA2sumA2ofA2theA2computedA2loads,A2basedA2onA2theA2minimumA2codeA2requirem
ents,A2isA2the

ResistanceA2-A2Ans--
AsA2comparedA2toA2#10,A2aA2#8A2wireA2ofA2theA2sameA2IengthA2hasA2less:

0.001A2inchA2-A2Ans--
OneA2circularA2milA2isA2theA2areaA2ofA2aA2circleA2whoseA2diameterA2is:

1,000,000A2cmA2-A2Ans--AA2roundA2bus-
barA2oneA2inchA2inA2diameter,A2hasA2aA2circularA2milA2areaA2of:

fourA2timesA2asA2greatA2-A2Ans--
AA2copperA2wireA2withA2twiceA2theA2diameterA2ofA2anotherA2wireA2hasA2aA2currentA2carryin
gA2capacity:

10.4A2-A2Ans--
TheA2specificA2resistanceA2ofA2copperA2wireA2@A220°A2CA2inA2ohmsA2perA2circularA2milA2ft.A
2is


permitA2currentA2toA2flowA2-A2Ans--
ConductanceA2ofA2anA2electricA2circuitA2isA2thatA2propertyA2thatA2will:

1OA2ohmsA2-A2Ans--TheA2equivalentA2valueA2ofA20.1A2mhoA2is

directlyA2proportionalA2toA2itsA2lengthA2-A2Ans--TheA2resistanceA2ofA2copperA2wireA2is:

FeederA2-A2Ans--
TheA2portionA2ofA2aA2wiringA2systemA2betweenA2aA2pointA2ofA2distributionA2andA2theA2branc
hA2circuitA2overcurrentA2deviceA2is

lockingA2-A2Ans--
GFCIA2protectionA2atA2aA2carnivalA2isA2notA2requiredA2forA2equipmentA2atA2circuitA2ifA2theA2r
eceptacleA2isA2ofA2theA2____________type

, notA2lessA2thanA21A21/4A2in.A2fromA2-A2Ans--
WhereA2cablesA2orA2nonmetallicA2racewaysA2areA2installedA2throughA2bored.holesA2inA2joi
sts,A2rafters,A2orA2woodA2members;holesA2shallA2beA2boredA2soA2thatA2theA2edgeA2ofA2theA
2holeA2isA2theA2nearestA2edgeA2-ofA2theA2woodA2member.


locatedA2onA2aA2balconyA2accessibleA2onlyA2toA2qualifiedA2persons
locatedA2inA2aA2roomA2onlyA2accessibleA2to
qualifiedA2persons
elevatedA28A2ftA2orA2moreA2aboveA2floorA2orA2otherA2workingA2surfaceA2-A2Ans--
ToA2guardA2liveA2partsA2overA250VA2butA2lessA2thanA2600V,A2equipmentA2isA2permittedA2toA
2be


12FtA2-A2Ans--
OverheadA2feederA2conductorsA2shallA2haveA2aA2minimumA2__________A2verticalA2cleara
nceA2overA2residentialA2propertyA2andA2driveways,A2asA2wellA2asA2thoseA2commercialA2are
asA2notA2subjectA2toA2truckA2traffic,A2whereA2theA2voltageA2isA2limitedA2toA2300A2volts-to-
ground.

36A2inchesA2-A2Ans--WhereA2rearA2accessA2isA2requiredA2toA2workA2onA2de-
energizedA2partsA2onA2theA2backA2ofA2enclosedA2equipment,A2aA2minimumA2workingA2spa
ceA2ofA2horizontallyA2shallA2beA2provided.

50'A2-A2Ans--
WhatA2isA2theA2maximumA2runA2lengthA2ofA2aA218AWGA2fixtureA2wireA2thatA2isA2tappedA2on
A2toA2aA220A2ampA2branchA2circuit?


powerA2supplyA2failureA2-A2Ans--
WhenA2theA2serviceA2disconnectingA2meansA2isA2aA2power-
operatedA2switchA2orA2circuitA2breaker,A2itA2shallA2beA2ableA2toA2beA2openedA2byA2handA2in
A2theA2eventA2ofA2a


2A2inA2ofA2concreteA2-A2Ans--
ConductorsA2areA2consideredA2outsideA2aA2buildingsA2whenA2theyA2areA2buriedA2underA2n
otA2lessA2than

8A2-A2Ans--
InA2straightA2pull,A2theA2lengthA2ofA2theA2boxA2shallA2notA2beA2lessA2than.A2____timesA2theA
2tradeA2sizeA2ofA2theA2largestA2raceway.


18"A2-A2Ans--
AtA2leastA2oneA2receptacleA2outletA2shallA2beA2installedA2withinA2ofA2theA2topA2ofA2aA2showA
2windowA2forA2eachA212A2linearA2feetA2measuredA2horizontallyA2acrossA2itsA2length


1000AA2-A2Ans--Ground-
faultA2protectionA2ofA2equipmentA2shallA2beA2providedA2froA2solidlyA2groundedA2wyeA2elect