Electrical Installations and Branch Circuits 5. It's important for designers and installers to ensure that equipment gro
Posted: Fri Jul 01, 2022 6:11 am
Electrical Installations and Branch Circuits
5. It's important for designers and installers to ensure thatequipment ground-fault current paths have ________, which willfacilitate the tripping of the overcurrent protective device.
A. low impedance B. proper labeling C. high impedance D. anequilibrium
6. According to the NEC, allowance for the future expansion ofinstallations is
A. an exception. B. in everyone's best interest. C. defined. D.a requirement.
7. Equipment rated at 1200 A or more and more than six feet widethat contains overcurrent devices, switching devices, or controldevices requires an entrance at each end of the working space.These doors must be at least what size?
A. 36 inches wide; 9 feet high B. 24 inches wide; 6 ½ feet highC. 24 inches wide; 8 ½ feet high
5. It's important for designers and installers to ensure thatequipment ground-fault current paths have ________, which willfacilitate the tripping of the overcurrent protective device.
A. low impedance B. proper labeling C. high impedance D. anequilibrium
6. According to the NEC, allowance for the future expansion ofinstallations is
A. an exception. B. in everyone's best interest. C. defined. D.a requirement.
7. Equipment rated at 1200 A or more and more than six feet widethat contains overcurrent devices, switching devices, or controldevices requires an entrance at each end of the working space.These doors must be at least what size?
A. 36 inches wide; 9 feet high B. 24 inches wide; 6 ½ feet highC. 24 inches wide; 8 ½ feet high