Question 77General Subjects - QMED

The correct answer is C. Unless the power tool is an approved double-insulated type, an ungrounded power tool has the potential to cause a fatal accident due to electrical shock. The reasoning behind this is that power tools that are not double-insulated require a proper ground path to ensure user safety in the event of an internal fault or short circuit. Using an ungrounded outlet with a non-double-insulated power tool removes this critical safety feature, leaving the user vulnerable to potential electrical shock hazards. The other answer choices are incorrect because A suggests an unsafe workaround using an adapter, B is incorrect as double-insulated tools do not require grounding, and D is incorrect as double-insulated tools do not require a three-prong grounded plug.