Contractor Exam Prep - Unit 8 Challange question 2

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S-117

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Location
florida
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Engineer
Hello everyone.

I've caught many errors in this book, but I don't want to bother Mike Holt with every issue I see.

I am really not getting how they came up with the answer for this question.
The solution shows a table for all the motors, (3 15hp three-phase motor, 3 3hp one-phase motor, 3 1hp one-phase motor)
the table makes no sense, because for the 3hp single phase, on the table it kinda looks like to me as if it were a 2-phase motor. It makes each motor take up two of the electric lines.

also, for the 1hp motor, it assumes that each motor is on a different line. Not sure if the question has an error, the answer has an error, or the question simply had assumptions made but not stated.

thanks
 
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