©BRIGHTSTARS EXAM SOLUTIONS
11/14/2024 12:19 PM
Electrical Level 3 Module 1 Load
Calculations and Branch Feeder Circuits.
Exam Questions With 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%
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
1|Page
11/14/2024 12:19 PM
Electrical Level 3 Module 1 Load
Calculations and Branch Feeder Circuits.
Exam Questions With 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%
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
1|Page
