The plug of a double-insulated tool commonly has how many prongs?

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Explore the SkillsUSA Cabinet Making Exam. Enhance your cabinet making skills with multiple choice questions, hints, and detailed explanations. Prepare to excel in your test!

Multiple Choice

The plug of a double-insulated tool commonly has how many prongs?

Explanation:
Double insulation protects you by keeping all live parts covered with strong insulation, so there’s no metal path to the user and no need for a grounding conductor. Because of that design, the power cord uses a two-prong plug—one prong for the current to flow in and the other for it to return. A third prong would be a ground connection, which isn’t required when the tool doesn’t rely on grounding for safety. So the common configuration for these tools is a two-prong plug.

Double insulation protects you by keeping all live parts covered with strong insulation, so there’s no metal path to the user and no need for a grounding conductor. Because of that design, the power cord uses a two-prong plug—one prong for the current to flow in and the other for it to return. A third prong would be a ground connection, which isn’t required when the tool doesn’t rely on grounding for safety. So the common configuration for these tools is a two-prong plug.

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