ASE A6 Electrical Electronics Practice Test

Door lock circuit.

35. All of the following are true about the circuit in the diagram above EXCEPT.

  • A. It is a ground-switched circuit.
  • B. It contains two relays.
  • C. The solid dots indicate a junction.
  • D. It is a positive pulse relay circuit.


Door lock negative pulse circuit.

Answer A is wrong. The circuit is ground switched.

Answer B is wrong. There are two relays.

Answer C is wrong. Solid dots indicate connected wires.

Answer D is correct. This is a ground-switched or ground-controlled "pulsed" relay circuit.