Question 7027 of 731 · Texas Journeyman Electrician Exam
A hallway light must be controlled from three separate locations. Which combination of switches is used?
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 7027
- B: Two three-way switches and one four-way switch
Explanation
The two end positions use three-way switches, and every additional control point between them uses a four-way switch. The four-way switch reverses the two travelers, so any switch can change the state of the light.
More questions: Equipment, Devices and Luminaires
- 7028How many traveler terminals does a standard four-way switch have, not counting the grounding terminal?
- 7029In a three-way switch circuit, which terminal of the switch at the supply end connects to the incoming ungrounded conductor?
- 7030How must each circuit be identified on a panelboard circuit directory?
- 7031Which panelboard directory entry best meets the code?
- 7032The old limit of 42 overcurrent devices for lighting and appliance branch-circuit panelboards was removed in the 2008 NEC. What limits the number of devices today?
- 7033A plug-in circuit breaker is back-fed to supply a panelboard. How must it be installed?