Practice question

On many heavy-duty school bus alternators, the regulator controls output by varying:

The rotor (field) current
The stator winding count
The drive belt tension
The battery electrolyte level

Answer: A — The rotor (field) current

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Practice more: ASE S6 Electrical Electronic Systems (School Bus) Practice Questions - ASE S6 - Electrical Electronic Systems (School Bus) Certification Exam →