6. Which of the following is a condition that a liquidtight flexible metal conduit must meet in order to be suitable as an equipment grounding conductor? A. The conduit is terminated in listed fittings. B. For trade sizes 3/4 through 1 1/4, the conduit conductors contained in the conduit are protected by overcurrent devices rated at 20 amperes or less. C. The combined length of the conduit and other tubing and conduit in the same ground-fault path exceeds six feet. D. For trade sides 3/8 through 1/2, the circuit conductors contained in the conduit are protected by overcurrent devices rated not more than 60 amperes. 7. You're going to connect a surge protection device to a separately derived electrical system. In this situation, the surge protection device should be connected at A. the load side of the first overcurrent protection device. B. the input to the transformer's primary winding. C. the end of the shortest branch circuit. D. the first connected IT cabinet. 8. What is another term for ground loops? A. Electrical noise B. Objectionable current C. Dirty ground D. Low-level circulating current 9. If an overcurrent device is rated for 60 amps three-phase, then the copper equipment grounding conductor should be sized A. AWG 8. B. AWG 6. C. AWG 10. D. AWG 4.

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6. Which of the following is a condition that a liquidtight flexible metal conduit must meet in order to be suitable as an equipment grounding conductor?

A. The conduit is terminated in listed fittings.
B. For trade sizes 3/4 through 1 1/4, the conduit conductors contained in the conduit are protected by overcurrent devices rated

at 20 amperes or less.
C. The combined length of the conduit and other tubing and conduit in the same ground-fault path exceeds six feet.

D. For trade sides 3/8 through 1/2, the circuit conductors contained in the conduit are protected by overcurrent devices rated not more than 60 amperes.

7. You're going to connect a surge protection device to a separately derived electrical system. In this situation, the surge protection device should be connected at

A. the load side of the first overcurrent protection device. B. the input to the transformer's primary winding.
C. the end of the shortest branch circuit.
D. the first connected IT cabinet.

8. What is another term for ground loops? A. Electrical noise
B. Objectionable current
C. Dirty ground

D. Low-level circulating current

9. If an overcurrent device is rated for 60 amps three-phase, then the copper equipment grounding conductor should be sized

A. AWG 8. B. AWG 6. C. AWG 10. D. AWG 4.

10. Which of the following statements about auxiliary grounding electrodes is true? A. They're often specified as a design requirement.
B. They must be bonded to the grounding electrode system for the building or structure.
C. It's not permissible to connect them to the equipment grounding conductors.

D. They're required by the National Electrical Code.

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