LOAD CALCULATION FEEDERS AND SERVICES LEVEL 4
MODULE 1 STUDY GUIDE WITH COMPLETE SOLUTION!!
What is the demand factor allowed by the NEC® for calculating the neutral
conductor size for electric range load?
answers: 70%
Using the VA/linear foot method, the total VA that must be used in a service
calculation for a 50' show window is
answers: 12,500VA
Before it is considered a continuous load, a load must operate for at least how
many hours without interruption?
answers: 3
Which of the following factors does not affect conductor ampacity adjustments?
answers: Number of phase
If a continuous connected load totals 120A, what is the minimum current-carrying
capacity required for the feeder?
answers: 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'?
answers: 79.60
, Which of the following lighting loads would be used in a residence that is 1,650 sq
ft?
answers: 4,950VA
What is the load for 40 non-dwelling unit receptacles? (Assume that the load is not
continuous.)
answers: 7,200VA
The minimum service rating for a residential service is
answers: 100A
Residential small appliance circuit must be rated at
answers: 1,500VA
Use of the 100' tap rule is limited to installation in high-bay manufacturing
buildings with wall heignt over
answers: 35 feet
Which part of a residential lighting and small appliance load must be rated at 35%
for service calculations?
answers: The next 177,000VA
If a store lighting load is 14,000VA (continuous), which of the following must be
used for the circuit calculation?
MODULE 1 STUDY GUIDE WITH COMPLETE SOLUTION!!
What is the demand factor allowed by the NEC® for calculating the neutral
conductor size for electric range load?
answers: 70%
Using the VA/linear foot method, the total VA that must be used in a service
calculation for a 50' show window is
answers: 12,500VA
Before it is considered a continuous load, a load must operate for at least how
many hours without interruption?
answers: 3
Which of the following factors does not affect conductor ampacity adjustments?
answers: Number of phase
If a continuous connected load totals 120A, what is the minimum current-carrying
capacity required for the feeder?
answers: 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'?
answers: 79.60
, Which of the following lighting loads would be used in a residence that is 1,650 sq
ft?
answers: 4,950VA
What is the load for 40 non-dwelling unit receptacles? (Assume that the load is not
continuous.)
answers: 7,200VA
The minimum service rating for a residential service is
answers: 100A
Residential small appliance circuit must be rated at
answers: 1,500VA
Use of the 100' tap rule is limited to installation in high-bay manufacturing
buildings with wall heignt over
answers: 35 feet
Which part of a residential lighting and small appliance load must be rated at 35%
for service calculations?
answers: The next 177,000VA
If a store lighting load is 14,000VA (continuous), which of the following must be
used for the circuit calculation?
