NJATC Load Calculations 2

Question 1

Per NEC 220.44, what demand factor may be applied to receptacle loads in office buildings that exceed 10,000 VA?

Accepted Answer

50%

Answer

100%

Answer

75%

Answer

25%

Question 2

What is the required calculated load per linear foot of show window lighting per NEC 220.14(G)?

Accepted Answer

200 VA

Answer

100 VA

Answer

150 VA

Answer

250 VA

Question 3

At what percentage of the continuous load must branch circuit conductors and overcurrent devices be rated per NEC 210.20(A)?

Accepted Answer

125%

Answer

100%

Answer

110%

Answer

150%

Question 4

Which formula correctly calculates true power (watts) in a three-phase circuit?

Accepted Answer

P = V × I × 1.732 × PF

Answer

P = V × I

Answer

P = V × I × 1.732

Answer

P = V² / R

Question 5

What simplified NEC calculation method can be used for dwelling unit service sizing as an alternative to the standard method?

Accepted Answer

Optional Calculation per NEC 220.82

Answer

Abbreviated Load Method

Answer

Simplified Feeder Method

Answer

Reduced Demand Method

Question 6

Per NEC 220.61(B)(1), at what percentage of the ungrounded conductor load may the neutral load for household ranges be calculated?

Accepted Answer

70%

Answer

100%

Answer

85%

Answer

75%

Question 7

What is the minimum volt-ampere load that must be calculated per NEC 220.14(I) for each general-purpose receptacle outlet in a dwelling unit?

Accepted Answer

180 VA

Answer

90 VA

Answer

120 VA

Answer

150 VA