FREE TN-LLE Commercial Load Calculations Questions and Answers

Question 1

What is the calculated general lighting load for a 20,000 sq. ft. office building after applying all applicable demand factors?

Accepted Answer

41,250 VA

Answer

70,000 VA

Answer

35,000 VA

Answer

23,750 VA

Question 2

A commercial occupancy has 100 general-purpose duplex receptacles. What is the calculated load for these receptacles after applying demand factors?

Accepted Answer

14,000 VA

Answer

18,000 VA

Answer

9,000 VA

Answer

10,000 VA

Question 3

What is the calculated load for 40 linear feet of show-window lighting in a retail store?

Accepted Answer

8,000 VA

Answer

4,000 VA

Answer

6,000 VA

Answer

10,000 VA

Question 4

A commercial kitchen contains 5 pieces of permanently installed cooking equipment with a total nameplate rating of 60 kW. What is the calculated demand load for this equipment?

Accepted Answer

42 kW

Answer

60 kW

Answer

39 kW

Answer

48 kW

Question 5

A 4-wire, 3-phase, 208Y/120V system serves a non-linear load with a calculated maximum unbalanced current of 250A. What is the calculated demand load on the neutral conductor?

Accepted Answer

235A

Answer

250A

Answer

200A

Answer

175A

Question 6

What is the feeder demand load for fixed electric space heating in a commercial building with three units rated at 5 kW, 6 kW, and 10 kW?

Accepted Answer

21 kW

Answer

10 kW

Answer

15.75 kW

Answer

16.8 kW