Practice question

Special equipment includes a public-address (PA) system. The driver's microphone produces no sound through the speakers. What should be checked first?

  1. The wheelchair securement straps
  2. The coolant level
  3. The stop-arm flasher
  4. The microphone, PA amplifier power/fuse, volume control, and speaker wiring

Answer: D — The microphone, PA amplifier power/fuse, volume control, and speaker wiring

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