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NCCER 209 UPDATED EXAM QUESTIONS AND CORRECT ANSWERS

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NCCER 209 UPDATED EXAM QUESTIONS AND CORRECT ANSWERS The fall-of-potential method is used to measure _____. - CORRECT ANSWERS resistance earth Which of the following is TRUE when installing grounding at more than one building? - CORRECT ANSWERS The grounded circuit conductor and the equipment grounding conductor must both be extended to the second building. The key to successfully clearing ground fault currents is _____. - CORRECT ANSWERS electrical continuity The bonding jumper for multiple disconnecting means is located _____. - CORRECT ANSWERS on the supply side of the service disconnect A transformer bonding jumper is routed with the feeder conductors from the transformer to the equipment grounding bar in the panel and is known as a(n) _____. - CORRECT ANSWERS supply-side bonding jumper When a new grounding system has been installed, it is advisable to conduct baseline three point tests every _____. - CORRECT ANSWERS season for the first year

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NCCER 209 UPDATED EXAM QUESTIONS AND
CORRECT ANSWERS
The fall-of-potential method is used to measure _____. - CORRECT ANSWERS earth
resistance



Which of the following is TRUE when installing grounding at more than one building? - CORRECT
ANSWERS The grounded circuit conductor and the equipment grounding conductor must
both be extended to the second building.



The key to successfully clearing ground fault currents is _____. - CORRECT
ANSWERS electrical continuity



The bonding jumper for multiple disconnecting means is located _____. - CORRECT
ANSWERS on the supply side of the service disconnect



A transformer bonding jumper is routed with the feeder conductors from the transformer to the
equipment grounding bar in the panel and is known as a(n) _____. - CORRECT
ANSWERS supply-side bonding jumper



When a new grounding system has been installed, it is advisable to conduct baseline three-
point tests every _____. - CORRECT ANSWERS season for the first year



A transformer-supplied system operating at less than 50V must be grounded if the supply
voltage to the transformer exceeds _____. - CORRECT ANSWERS 150V to ground



A ground tester can be used to measure the value of a grounding electrode's _____. - CORRECT
ANSWERS resistance

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