ELECTRICAL LEVEL 3 MODULE 1 LOAD
CALCULATIONS AND BRANCH FEEDER CIRCUITS
QUESTIONS AND ANSWERS 2026/2027
The allowable ampacity for eleven No. 12 THHN copper conductors in a cable
must be adjusted by - ANSWER -50%
The load for 10' of multi-outlet assembly used to supply several loads
simultaneously is - ANSWER -1,800VA
The maximum size dual-element fuse for a 40hp, 3Ø, 460V motor with a Design
Letter D is - ANSWER -100A
What is the demand load for one household range with a nameplate rating of
11.75kW, 240V, 1Ø? - ANSWER -8kW
What is the current-carrying capacity for No. 6 THWN aluminum conductors in
conduit run through an ambient temperature of 38°C? - ANSWER -44 Amps
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 - ANSWER -13.75A
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' - ANSWER -63.55'
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'? - ANSWER -93'
What is the load center length for a branch circuit with noncontinuous loads of
20A at 60' and 50A at 125'? - ANSWER -106.43'
CALCULATIONS AND BRANCH FEEDER CIRCUITS
QUESTIONS AND ANSWERS 2026/2027
The allowable ampacity for eleven No. 12 THHN copper conductors in a cable
must be adjusted by - ANSWER -50%
The load for 10' of multi-outlet assembly used to supply several loads
simultaneously is - ANSWER -1,800VA
The maximum size dual-element fuse for a 40hp, 3Ø, 460V motor with a Design
Letter D is - ANSWER -100A
What is the demand load for one household range with a nameplate rating of
11.75kW, 240V, 1Ø? - ANSWER -8kW
What is the current-carrying capacity for No. 6 THWN aluminum conductors in
conduit run through an ambient temperature of 38°C? - ANSWER -44 Amps
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 - ANSWER -13.75A
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' - ANSWER -63.55'
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'? - ANSWER -93'
What is the load center length for a branch circuit with noncontinuous loads of
20A at 60' and 50A at 125'? - ANSWER -106.43'
