In the book, Part 3 calculations, question 68 and 69 reference duplex unit. The question states there are 3 AC units and the answer key shows Mike used 2 AC units. Why wouldn't you use all 3 units if listed in the loads of the unit?
Master Electrician Practice Exam Book
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I don't know how many members have the book you are studying so you might be better off asking the MH staff. Click below.
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