TL;DR
Master the optional load calculation methods for dwelling units and new restaurants per NEC 220.82 and 220.83. These simplified calculation methods save time and are frequently tested as alternatives to the standard method.
Free Optional Method (220.82/83) Practice Questions
Journeyman Electrician License Exam · Load Calculations
This module covers Optional Method (220.82/83) as part of the Load Calculations section, testing your understanding of core concepts and their practical application.
| Exam | Journeyman Electrician License Exam |
| Pass Rate | 55% |
| Duration | 240 minutes |
| Module | Optional Method (220.82/83) |
Why Optional Method (220.82/83) matters
Optional Method (220.82/83) is a commonly tested topic on the Journeyman Electrician License Exam because it covers fundamental knowledge required for competent professional practice.
Sample Practice Questions (5)
1. Using the optional method (220.82), a dwelling has: 2,000 sq ft (general lighting at 3 VA/sq ft), two small-appliance circuits, one laundry circuit, a 12 kW range, a 5 kW dryer, a 4.5 kW water heater, and a 5 kW A/C unit. No electric heat. What is the total service demand?
- 22,480 VA
- 19,800 VA
- 18,480 VA
- 24,300 VA
2. Which of the following is a key advantage of using the optional method (220.82) over the standard method for dwelling unit load calculations?
- It eliminates the need for a grounding electrode
- It allows combining all loads with a simplified demand factor, often resulting in a smaller calculated service
- It permits the use of aluminum conductors exclusively
- It is required for all new construction after 2020
3. Using the optional method, a dwelling has a general load demand of 22 kVA and a heating load of 8 kVA. The service is 120/240V single-phase. What is the minimum service amperage?
- 100 amps
- 125 amps
- 150 amps
- 200 amps
Want more practice like this?
Start practicing free →4. A dwelling has a general connected load of 25 kVA (excluding A/C and heat), a 6 kW A/C unit, and 10 kW of electric heat from three 3.33 kW strips. Using the optional method, what is the total service demand?
- 26,000 VA
- 22,000 VA
- 20,000 VA
- 26,600 VA
5. When comparing the standard method and the optional method for a dwelling unit service calculation, the optional method typically produces:
- A larger calculated load, requiring a bigger service
- A smaller calculated load, potentially allowing a smaller service
- The same result as the standard method
- A load that is only valid for services under 100 amps
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