11. Which of the following statements about the use of structural steel as an equipment grounding conductor (EGC) in an AC system is correct? A. Structural steel can be used as an EGC when it's bonded at both ends. B. Structural steel isn't allowed for use as an EGC. C. Structural steel must have an EGC bonding jumper every three feet of structure. D. Structural steel can be used as an EGC bonding jumper between panelboards.
11. Which of the following statements about the use of structural steel as an equipment grounding conductor (EGC) in an AC system is correct?
A. Structural steel can be used as an EGC when it's bonded at both ends.
B. Structural steel isn't allowed for use as an EGC.
C. Structural steel must have an EGC bonding jumper every three feet of structure. D. Structural steel can be used as an EGC bonding jumper between panelboards.
12. Which of the following statements about equipment grounding conductors is true?
A. They increase voltages above ground potential on conductors and equipment enclosures during normal operation.
B. Unacceptable equipment grounding conductors include conduit, tubing, and cable armor.
C. They must be capable of withstanding the higher level of ground-fault current to perform their safety function.
D. When they're far from their associated circuit conductors, impedance values are kept as low as possible during ground-fault conditions.
13. Imagine that you're asked to install an auxiliary grounding electrode at the base of a lighting pole in a parking lot. This auxiliary grounding electrode will be connected to the
A. lighting pole's neutral conductor.
B. next lighting pole's auxiliary grounding electrode.
C. lighting pole's electrical service equipment grounding conductor. D. electrical service's grounding electrode conductor.
14. Which of the following is most likely to specify the circuit to use for isolated equipment grounds? A. The electrical worker
B. The authority having jurisdiction
C. The design engineer
D. The building inspector
15. Which of the following terms refers to equipment that's vulnerable to electromagnetic interference or circulating low-level currents?
A. Sensitive electronics
B. Power distribution units C. Broadband grounding D. Signal reference grids
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
