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Electrical Level 3 Module 1 EXAM [2026/2027] | Load Calculations and Branch Feeder Circuits | VERIFIED ANSWERS

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Electrical Level 3 Module 1 EXAM [2026/2027] | Load Calculations and Branch Feeder Circuits | VERIFIED ANSWERS

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Electrical Level 3 Module 1 EXAM [2026/2027] | Load
Calculations and Branch Feeder Circuits | VERIFIED
ANSWERS

• According to the NEC®, the ampacity of branch circuit conductors must be
derated when there are more than how many current-carrying conductors in a
raceway? -✓✓ANSWER: 3


• Air conditioning overcurrent protective devices can never exceed what
percentage of the motor-rated load current or the branch circuit selection current
(whichever is greater)? -✓✓ANSWER: 225%


• Conductors must be derated when installed in conduit -✓✓ANSWER: on or
above rooftops


• Continuous loads are calculated at what percentage of the maximum current
rating of the overcurrent device? -✓✓ANSWER: 80%


• For a given load and length, the branch circuit voltage drop should not exceed -
✓✓ANSWER: 3%


• For resistance welders, the rating for the overcurrent protection device should not
exceed what percentage of the primary current rating of the welder? -
✓✓ANSWER: 300%


• Show window lighting is calculated at 200VA per linear foot plus -
✓✓ANSWER: 125%

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