IEC Exam Study & Practice Questions With Verified Correct Answers | Updated

IEC Exam Study & Practice Questions With Verified Correct Answers | Updated The primary purpose of grounding metal equipment enclosures and metal raceways to the grounding electrode system (earth) is to ___. I. cause the quick operation of OCPDs II.keep all metal parts at the same voltage III. limit voltage surges - ANSWER e. II & III only A metal enclosure surrounding electrically operated equipment ___. a. is required to be grounded b. protects the equipment from physical damage c. provides protection for people against accidental contact with live parts - ANSWER d. all of these The amount of current that flows in any circuit is determined by the voltage and resistance of the circuit. Select one: a. True b. False - ANSWER a. True ___ is defined as case or housing of apparatus, or the fence or walls surrounding an installation to prevent personnel from accidentally contacting energized parts or to protect the equipment from physical damage. Select one: a. Inaccessible b. Guarded c. Isolated d. Enclosure - ANSWER : Enclosure The circuit installed in a run of PVC conduit requires a 6 AWG equipment grounding conductor. However, a 12 AWG was installed instead. Using the 12 instead of the 6 AWG wire will ___ the amount of time required for a circuit breaker to open when a ground fault occurs. Select one: a. increase b. decrease c. have no effect on - ANSWER increase