An Electrician Tests a Three-Way Switching Circuit

question 3

Multiple Choice

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

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