An electrician tests a three-way switching circuit.The lighting load can be turned OFF and then ON at each of the three-way switch locations.However, when one three-way switch toggle is left in the up position, toggling the other three-way switch does not cause the lighting load to come on.The likely cause is __________.
A) an open grounding path
B) an open grounded path
C) the traveler wires are incorrectly connected to the traveler terminals on the switch
D) there is no electrical power at the switch

Question

Quizplus · Accepted Answer

When one switch is in the up position, the traveler wire connected to its terminal should be carrying the current to the lighting load. If the traveler wires are incorrectly connected to the traveler terminals on the switch, the circuit will not function properly, and toggling the other switch will not turn on the lighting load.

An Electrician Tests a Three-Way Switching Circuit