ASE A8 Engine Performance Practice Test

Diagram of an automotive engine control system.

13. Component A in the diagram above is:

  • A. Part of the primary ignition system.
  • B. Switched by the secondary circuit.
  • C. Part of the secondary ignition system
  • D. Both A and C.


Answer A is wrong. Both A and C are correct. An ignition coil is part of the primary and the secondary circuits.

Answer B is wrong. An ignition coil is controlled or switched by the primary circuit.

Answer C is wrong. It is part of both circuits. See the read more section to learn more about ignition coils.

Answer D is correct. Both A and C are correct.