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Engine: Electricity

Question 1,567 of 1,595

The illustration shows a diagnostic setup for locating a shorted field coil of a ten-pole salient pole alternator. Suppose the No. 4 field coil had shorted turns and the other field coils were free of shorts. If 240 VAC/60 Hz is applied across the brushes, what would be the voltage drop across field coil No.4?

USCG illustration EL-0202 for Engine Electricity question 1567
Illustration EL-0202
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Appears on the 2026 sample exam for

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