3 phase rectification

[TNPE]

Power electronics will be presented in some capacity on the test (re: outline on NCEES website).  As for your second question, I don't have an answer for you as to why it was worked that way without having more info.  Could be a mistake on their part...?

 

[TNPE]

Fortunately, I've already taken and passed the exam; but I prepared and studied vigorously.  I found the exam to be a fair representation of the material outlined by NCEES.  That's not to say it was easy, cause it wasn't, but it was about what I expected with regards to concepts and intuitive thought.  The afternoon portion was almost explicity regurgitated from my references and pre-exam preparations.  Call me lucky or clairvoyant, but it was a sight to behold when the afternoon section began.  I couldn't believe it!!!