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Electricity Level 3, Section 1 Questions With Complete Answers

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Electricity Level 3, Section 1 Questions With Complete Answers

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Institution Electrical Level 3 Module 1

Course Electrical Level 3 Module 1

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ELECTRICITY LEVEL 3, SECTION 1 QUESTIONS WITH COMPLETE ANSWERS

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ELECTRICITY LEVEL 3, SECTION 1
QUESTIONS WITH COMPLETE
ANSWERS

What llis llthe lldemand llload llfor llone llhousehold llrange llwith lla llnameplate llrating llof
ll11.75kW, ll240V, ll1○? ll- llANS-8kW

Air llconditioning llovercurrent llprotective lldevices llcan llnever llexceed llwhat llpercentage
llof llthe llmotor-rated llload llcurrent llor llthe llbranch llcircuit llselection llcurrent ll(whichever
llis llgreater)? ll- llANS-225%

The llNEC llrequires llthat llthe llampacity llof llbranch llcircuit llconductors llbe llderated llwhen
llthere llare llmore llthan llhow llmany llcurrent-carrying llconductors llin lla llraceway? ll- llANS-
3

According llto llthe llNEC, llthe lltotal llload llof llshow llwindows llmust llbe llcalculated llat llnot
llless llthan ll- llANS-200VA llper lllinear llfoot llof llshow llwindow

For llresistance llwelders, llthe llrating llfor llthe llovercurrent llprotection lldevice llshould llnot
llexceed llwhat llpercentage llof llthe llprimary llcurrent llrating llof llthe llwelder? ll- llANS-300%

What llis llthe llcurrent-carrying llcapacity llfor llNo. ll6 llTHWN llaluminum llconductors llin
llconduit llrun llthrough llan llambient lltemperature llof ll38°C? ll- llANS-44A

What llis llthe llvoltage lldrop llfor lla ll120V, llsingle-phase, lltwo-wire llbranch llcircuit, ll100'
lllong, llusing llcopper llconductors llof ll6,530 llcircular llmils llwith lla llnoncontinuous llload llof
ll13A? ll- llANS-5.14V

What llis llthe llload llcenter lllength llfor lla llbranch llcircuit llwith llno llcontinuous llloads llof
ll20A llat ll60' llfrom llthe llsource lland ll50A llat ll125' llfrom llthe llsource? ll- llANS-106.43'

What llis llthe llrequired llcircuit llampacity llof lla llnoncontinuous, llsingle llphase llload llof
ll8.5kW llat ll277V? ll- llANS-30.69A

The llload llfor ll10' llof llmulti-outlet llassembly llused llto llsupply llseveral llloads
llsimultaneously llis ll- llANS-1,800VA

Conductors llmust llbe llderated llwhen llinstalled llin llconduit ll- llANS-on llor llabove llrooftops

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Uploaded on: December 19, 2024
Number of pages: 2
Written in: 2024/2025
Type: Exam (elaborations)
Contains: Questions & answers

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