What statement is true concerning portable power tools?

Correct Answer: Option 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.

Under USCG National Maritime Center examination standards, the accepted correct answer is: 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..