The point of attatchment of the service drop conductors to a building must not be less than ______ ft above finish grade
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The point of attatchment of the service drop conductors to a building must not be less than ______ ft above finish grade
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- When connecting a multiwire (3-wire) circuit to a single phase panel, one ungrounded conductor must be connected to the ____ phase and the other ungrounded conductor must be connected to the ____ phase. Select one: a. A, A b. B, B c. A, B d. doesn’t matterHow many circuit wires enter the entry ceiling box? How many equipment grounding conductors enter the entry ceiling box?Equipment Grounding 13. A metal elbow is a part of a nonmetallic, underground raceway. The elbow won't need to be grounded as long as it's encased in at least _______ inches of concrete. A. 4 B. 5 C. 2 D. 6 13 A. Which of the following can be in the form of a wire and is required to be installed with feeders and branch circuits? A. Phased neutral conductorB. Equipment grounding conductor C. Grounded neutral conductorD. Grounding electrode conductor
- _ lines indicate exposed wiring.a system or circuit conductor (one that carries current), that is intentially grounded is referred to as _____If a grounding electrode conductor is connected at the first system disconnecting means or overcurrent device, the bonding jumper is sized the same as the ____. Select one: A. EQUIPMENT BONDING JUMPER B. POSITIVE CONDUCTOR C. SUPPLY-SIDE BONDING JUMPER D. NEUTRAL CONDUCTOR
- advanced grounding applications 16. Duct banks for medium- and high-voltage feeders are identified with _______ on top before final grading processes. A. a red dieB. a green stripe C. an orange wire D. the initials "DB"Service-lateral conductors are required to be insulated except for the grounded neutral conductor when it is___. A. Bare copper used in a raceway B. Bare copper & part of a cable assembly that is identified for ground use C. copper-clad Aluminum D. A or BA(n) _________ is a reliable conductor used to ensure the required electrical conductivity between metal parts required to be electrically connected. a) Equipment bonding jumper b) Bonding conductor of jumper c) Main bonding jumper d) Equipment grounding conductor
- _______ is not considered an effective ground-fault current path. a) Ground b) Equipment grounding conductors c) Equipment bonding jumpers d) Grounded conductors Which of the following is not a conductor in the grounding and bonding scheme for an ungrounded system? a) Grounding electrode conductor for grounding equipment enclosures and conductive parts b) Equipment grounding conductor c) Bonding conductors or jumper d) System grounded conductorEquipment Grounding 10. Which of the following statements about ground faults is true?A. They usually occur between any grounded circuit conductor and the equipment grounding conductor. B. They're often normal and typically intentional.C. They can't result from human error.D. They can happen if a conductive tool is dropped in an energized equipment's electrical enclosure.The minimum point of attachment of the service-drop conductors to a building must in no case be less than above finished grade. A. 8 ft B. 10 ft C. 12 ft D. 15 ft