5. ____________________ causes the current to surge back and forth between alternators operating in parallel.

Fill in the blank(s) with the appropriate word(s).


Hunting

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Most ORVR systems use a(n) ________ that creates an aspiration effect, which helps to capture the gas fumes during re-fueling

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If a 15 ?H inductor has a 2.2 K? reactance, the frequency equals ________

A) 23.3 kHz B) 4.28 kHz C) 23.3 MHz D) 4.28 MHz

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A square wave voltage varies between 0 V and 12 V. The positive pulses are 75 ?s wide and there is a 25 ?s gap between them. What is the DC average of the waveform?

A. 3 V B. 4 V C. 6 V D. 9 V

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A rectangular 45° duct is 7 inches wide. The radius of the throat is 5 inches. What is the arc length of the throat to the nearer 16th inch?

Fill in the blank(s) with the appropriate word(s).

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