Electrical Level 3 Module 1 Load Calculations and Branch
Feeder Circuits
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? - Correct 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)? - Correct Answer -225%
Conductors must be derated when installed in conduit - Correct Answer -on
or above rooftops
Continuous loads are calculated at what percentage of the maximum current
rating of the overcurrent device? - Correct Answer -80%
For a given load and length, the branch circuit voltage drop should not
exceed - Correct 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? - Correct Answer -300%
Show window lighting is calculated at 200VA per linear foot plus - Correct
Answer -125%
Feeder Circuits
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? - Correct 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)? - Correct Answer -225%
Conductors must be derated when installed in conduit - Correct Answer -on
or above rooftops
Continuous loads are calculated at what percentage of the maximum current
rating of the overcurrent device? - Correct Answer -80%
For a given load and length, the branch circuit voltage drop should not
exceed - Correct 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? - Correct Answer -300%
Show window lighting is calculated at 200VA per linear foot plus - Correct
Answer -125%