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In a properly-wired 110-120-volt polarized and grounded household outlet, what is the shape of the grounded slot (neutral)?

Assuming correct color-coding of the wires, which outlet is wired correctly in the image?

Which term refers to an explosion of molten material caused by high-amperage arcs?

Which term refers to a single grounded wire (a.k.a. neutral, white or gray wire) that serves more than one ungrounded wire/conductor?

In the image, which wire should be used as the equipment grounding wire?

Which term refers to a device that disconnects voltage to a circuit manually (through a switch) and automatically (when a maximum current is exceeded)?

Which term refers to the voltage that a grounded part should have (i.e., zero volts relative to ground)?

Which term refers to an object or system of objects that create a direct connection to earth (e.g., a metal plumbing system, a re-bar system in concrete, a series of copper grounding rods, etc.)?

Which approval refers to a device that is suitable for installation underground, within concrete slabs, vehicle washing areas, etc.?

Which term refers to the maximum current a wire or other conductor can carry continuously without overheating or exceeding its temperature rating?