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Which of the following is not part of the primary ignition circuit?

The rotor arm

The coil primary winding

The switching transistor

The condenser

  • A.The switching transistor
  • B.The condenser
  • C.The rotor arm
  • D.The coil primary winding

Answer: C

The rotor arm handles the high tension output and therefore belongs to the secondary circuit. The primary carries battery voltage through the coil, the switching device and the condenser. The two circuits are diagnosed differently. A symptom that appears under one condition and not another is what narrows the diagnosis quickly. Working the distinction through on a single concrete case fixes it more firmly than any rule of thumb. Working one numerical case through both cases side by side fixes the distinction better than any rule of thumb.

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