EVITP Load Calculation Feeders And Services Level 4
Module 1: Questions With Complete Answers
What is the demand factor allowed by the NEC® for calculating the neutral
conductor size for electric range load? Right Ans - 70%
Using the VA/linear foot method, the total VA that must be used in a service
calculation for a 50' show window is Right Ans - 12,500VA
Before it is considered a continuous load, a load must operate for at least how
many hours without interruption? Right Ans - 3
Which of the following factors does not affect conductor ampacity
adjustments? Right Ans - Number of phase
If a continuous connected load totals 120A, what is the minimum current-
carrying capacity required for the feeder? Right Ans - 150A
What is the load center length for a tapped feeder with loads of 120A at 50',
110A at 60', 75A at 90', and 70A at 150'? Right Ans - 79.60
Which of the following lighting loads would be used in a residence that is
1,650 sq ft? Right Ans - 4,950VA
What is the load for 40 non-dwelling unit receptacles? (Assume that the load
is not continuous.) Right Ans - 7,200VA
The minimum service rating for a residential service is Right Ans - 100A
Residential small appliance circuit must be rated at Right Ans - 1,500VA
Use of the 100' tap rule is limited to installation in high-bay manufacturing
buildings with wall heignt over Right Ans - 35 feet
Which part of a residential lighting and small appliance load must be rated at
35% for service calculations? Right Ans - The next 177,000VA
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