ELECTRICAL LEVEL 3 MODULE 1 LOAD CALCULATIONS AND BRANCH FEEDER CIRCUITS EXAM QUESTIONS AND ANSWERS 2024

ELECTRICAL LEVEL 3 MODULE 2024
1 LOAD CALCULATIONS AND
BRANCH FEEDER CIRCUITS
EXAM

ANSWER ALL QUESTIONS IN THIS SECTION



QUESTION 1



The maximum size dual-element fuse for a 40hp, 3Ø, 460V motor with a Design
Letter D is - ANSWERS-100A



QUESTION 2



What is the demand load for one household range with a nameplate rating of
11.75kW, 240V, 1Ø? - ANSWERS-8kW



QUESTION 3



What is the current-carrying capacity for No. 6 THWN aluminum conductors in
conduit run through an ambient temperature of 38°C? - ANSWERS-44 Amps



QUESTION 4

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, ELECTRICAL LEVEL 3 MODULE 2024
1 LOAD CALCULATIONS AND
BRANCH FEEDER CIRCUITS
EXAM

What is the lighting load on a 120V circuit for six 100W incandescent lights and
four fluorescent fixtures with a ballast rating of 1.5A, all operating continuously
for 8 hours per day? 13.75A - ANSWERS-13.75A

QUESTION 5



What is the load center distance for a 208V, four-wire, three-phase branch circuit
with fixed noncontinuous loads from the source of 60A at 45', 40A at 60', 30A at
75', and 25A at 100' - ANSWERS-63.55'



QUESTION 6



What is the load center length for a branch circuit consisting of noncontinuous
loads of 125A at 80', 75A at 110', and 50A at 100'? - ANSWERS-93'



QUESTION 7



What is the load center length for a branch circuit with noncontinuous loads of
20A at 60' and 50A at 125'? - ANSWERS-106.43'



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