When a duplex receptacle is installed horizontally, it is recommended that the __________ slot be located on top.
A) grounded
B) grounding
C) ungrounded
D) Either A or B

Question

Quizplus · Accepted Answer

When a duplex receptacle is installed horizontally, it is recommended that the grounded slot (the wider one) be located on top. This is because most electrical plugs have a grounding prong, which is larger than the other two prongs, and will fit securely in the grounded slot. Placing the ungrounded slot on top could allow for the possibility of an object or wire accidentally becoming stuck in the slot, which could cause a potential electrical hazard.

When a Duplex Receptacle Is Installed Horizontally, It Is Recommended