Master Electrician License| 182 Questions | With Complete Solutions

If the cover for an underground pull box used for circuits over 600v is not locked, bolted, or screwed into place, then it must weigh equal to correct answer: 100 pounds The maximum total voltage droop on a branch circuit is correct answer: 3% the floors of vaults in contact with the earth shall be of concrete that is not less then correct answer: 6 inches thick according to the NEC bare live parts are guarded from the public in the following methods except correct answer: protected by fireproof curtain equipment associated with the electrical installation can be located above or below other electrical equipment within their working space when the associated equipment dose not extend more then correct answer: 6inches when the code uses the words it means the identified actions are allowed but not required, and may be optional correct answer: shall be permitted a 120 volt 15-20 amp receptacle shall be located with in of air conditioning and refrigeration, heating systems correct answer: 25 feet in the NEC the words . indicate a mandatory requirement correct answer: shall not or shall be permitted