Most electrical problems with an electric motor are ____.
A. short circuited windings, closed windings, and grounded windings
B. short circuited windings. open windings, and grounded windings
C. all of the above
D. none of the above
Answer: B
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When safe working loads are determined, they are based on _____.
a. ideal conditions b. average conditions c. rare conditions d. worst-case conditions
What is a catalyst?
What will be an ideal response?
A balanced, positive-sequence wye-connected source has Van = 240?0° V (rms) and supplies an unbalanced delta-connected load via a transmission line with impedance 2 + j3 ? per phase.
(a) Calculate the line currents if Z?? = 40 + j15 ?, Z?? = 60 ?, Z?? = 18 – j12 ?. (b) Find the complex power supplied by the source.
The ____ operator of the test command, combines two expressions and tests a logical OR relationship between them.
A. | B. || C. -O D. -o