Practice question

A school bus headlamp circuit uses a relay so that:

  1. The headlamps flash automatically
  2. The headlamp switch carries only low control current while the relay handles heavy lamp current
  3. The alternator output increases
  4. The stop arm extends with the headlamps

Answer: B — The headlamp switch carries only low control current while the relay handles heavy lamp 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 →