Journeyman Electrician’s Exam Journeyman Electrician's Load Calculations 2

Question 1

Per NEC 220.53, what demand factor applies when four or more fixed appliances (excluding ranges, dryers, space heating, or A/C) are installed in a dwelling unit?

Accepted Answer

75%

Answer

NEC 220.53 permits a 75% demand factor when four or more fixed appliances are installed in a dwelling unit.

Question 2

Per NEC 220.14(I), what is the standard load per outlet for general-purpose receptacles in commercial occupancies?

Accepted Answer

180 VA

Answer

NEC 220.14(I) assigns 180 VA per outlet for general-purpose receptacle outlets in commercial occupancies.

Question 3

Per NEC 220.14(G), what is the minimum load per linear foot used for show window lighting in a commercial load calculation?

Accepted Answer

200 VA

Answer

NEC 220.14(G) requires a minimum of 200 VA per linear foot for show window lighting loads.

Question 4

What demand factor does NEC Table 220.42 assign to dwelling unit lighting loads between 3,001 VA and 120,000 VA?

Accepted Answer

35%

Answer

NEC Table 220.42 assigns a 35% demand factor to dwelling unit lighting loads between 3,001 VA and 120,000 VA.

Question 5

Per NEC 220.61(B)(1), what percentage is applied to calculate the neutral demand load for electric clothes dryers?

Accepted Answer

70%

Answer

NEC 220.61(B)(1) requires the neutral load for dryers to be calculated at 70% of the feeder or service demand load.

Journeyman Electrician’s Exam Practice Test

Journeyman Electrician’s Exam Practice Test

Journeyman Electrician’s Exam Journeyman Electrician's Load Calculations 2