NEIEP 600 EXAM QUIZZES & ANS!!
when a cam or vane is moved close to a magnetic
levleing switch what occurs? - .....ANSWER ...✔✔ the
switch changes its satate
what is meant by the normal state of relay contacts? -
.....ANSWER ...✔✔ contact state without current
applied to the coil
what type of wave form is generated by two pole ac
generator in one complete revolution? - .....ANSWER
...✔✔ one full AC cycle
what defines the the period of a ac waveform ? -
.....ANSWER ...✔✔ the time it takes to complete one
full cycle .
what is the period of a 120 hz - .....ANSWER ...✔✔
.00833 seconds
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a sine wave beginning at 0 degrees will reach positive
and negative peaks at what two points ? - .....ANSWER
...✔✔ 90 and 270 degrees
what is it meant by the term peak to peak voltage ? -
.....ANSWER ...✔✔ voltage between positive and
negative peaks
the expression 0.636Xpeak voltage best describes
what? - .....ANSWER ...✔✔ voltage or current
average
what best describes the term AC effective voltage ? -
.....ANSWER ...✔✔ the AC voltage required to
produce the same power as a DC voltage
what is the peak voltage of a waveform with 480 VAC
RMS? - .....ANSWER ...✔✔ 679 volts
what effect an inductor has on current flow ? -
.....ANSWER ...✔✔ it opposes change