NEC Article 220 Branch Circuit, Feeder and Service Load
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Calculations Exam with verified solutions || || || ||
The requirements for calculating certain loads are found in article 220 of the national
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electrical code. Which of the following load calculations are covered in this article?
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A- Branch Circuit loads
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B- Feeder Loads
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C- service loads
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D- All the above - ✔✔D
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When calculating branch circuits, feeders or service loads, you should round the calculation
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to the nearest whole amp. What voltage should be used when calculating for those loads?
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A- Whatever voltage specified
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B- 120, 12/240, 208y/120 or 240
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C- 374, 480/277, 480 600y/347 or 600
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D- all the above - ✔✔D
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Which dimension should be used to calculate the floor area of a building?
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A- inside dimensions
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B- outside dimensions
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C- either A or B
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D- Neither A nor B - ✔✔B
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, At what HP can a motor be connected to a lighting circuit and still be considered a "general
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lighting load"? ||
A- 1/8 hp
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B- 1/4 hp
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C- 1/2 hp
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D- 1 hp - ✔✔A
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General use receptacles and outlets NOT for general Illumination in all occupancies should
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be calculated according to article 220. 14 of the national electrical code. What are the loads
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that are shown there based on
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A- Nominal feeder voltages
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B- Nominal branch-Circuits voltages
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C- Either A or B
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D- Neither A nor B - ✔✔B
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These are requirements for loads related to adding a structural addition onto an existing
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dwelling unit. where will you find the requirements for such an occurrence in the national
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electrical code? ||
A- 220.12
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B- 220.14
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C- Both A and B
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D- Neither A nor B - ✔✔B
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|| || || || || || || || ||
Calculations Exam with verified solutions || || || ||
The requirements for calculating certain loads are found in article 220 of the national
|| || || || || || || || || || || || || ||
electrical code. Which of the following load calculations are covered in this article?
|| || || || || || || || || || || ||
A- Branch Circuit loads
|| || ||
B- Feeder Loads
|| ||
C- service loads
|| ||
D- All the above - ✔✔D
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When calculating branch circuits, feeders or service loads, you should round the calculation
|| || || || || || || || || || || || ||
to the nearest whole amp. What voltage should be used when calculating for those loads?
|| || || || || || || || || || || || || ||
A- Whatever voltage specified
|| || ||
B- 120, 12/240, 208y/120 or 240
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C- 374, 480/277, 480 600y/347 or 600
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D- all the above - ✔✔D
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Which dimension should be used to calculate the floor area of a building?
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A- inside dimensions
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B- outside dimensions
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C- either A or B
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D- Neither A nor B - ✔✔B
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, At what HP can a motor be connected to a lighting circuit and still be considered a "general
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lighting load"? ||
A- 1/8 hp
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B- 1/4 hp
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C- 1/2 hp
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D- 1 hp - ✔✔A
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General use receptacles and outlets NOT for general Illumination in all occupancies should
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be calculated according to article 220. 14 of the national electrical code. What are the loads
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that are shown there based on
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A- Nominal feeder voltages
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B- Nominal branch-Circuits voltages
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C- Either A or B
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D- Neither A nor B - ✔✔B
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These are requirements for loads related to adding a structural addition onto an existing
|| || || || || || || || || || || || || ||
dwelling unit. where will you find the requirements for such an occurrence in the national
|| || || || || || || || || || || || || || ||
electrical code? ||
A- 220.12
||
B- 220.14
||
C- Both A and B
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D- Neither A nor B - ✔✔B
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