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- 7.B. The size of a grounding electrode conductor for a service or separately derived system is generally basedon the size of the largestA. ungrounded supply conductor.B. equipment grounding conductor.C. grounded electrode.D. bonding jumper.7.C. Which of the following statements about bonding is true?A. The joint or termination must offer opposition in the circuit for effective electrical connections.B. Effective bonding keeps impedance high if a fault should occur.C. The entire electrical safety circuit is only as good as its strongest bonded link.D. Bonding connections must endure high levels of fault current until overcurrent protective devices can operate.- Loads, Service, and Overcurrent Protection 6.a. The general lighting load is based on a _______ per square foot basis.A. kilowattB. number of circuitsC. volt-ampereD. general illumination6.b. What's the primary disadvantage of using copper conductors?A. AvailabilityB. WeightC. CostD. Durability7.A. Ferrous metal raceways or enclosures are made with _______ content.A. steel or brassB. aluminum or ironC. brass or aluminumD. iron or steel7.B. The size of a grounding electrode conductor for a service or separately derived system is generally basedon the size of the largestA. ungrounded supply conductor.B. equipment grounding conductor.C. grounded electrode.D. bonding jumper.7.C. Which of the following statements about bonding is true?A. The joint or termination must offer opposition in the circuit for effective electrical connections.B. Effective bonding keeps impedance high if a fault should occur.C. The entire electrical safety circuit is only as good as its strongest bonded link.D. Bonding connections must endure high levels of fault current until overcurrent protective devices can operate.
- 5. How many system bonding jumpers normally are there for a separately derived system that's grounded? A. ThreeB. TwoC. One D. Zero 6. How many grounded neutral conductors are in a 208Y/120 volt, 3-phase, 4-wire system? A. ThreeB. TwoC. One D. Four 7. Which of the following are sometimes installed as an emergency system, legally required standby system, or optional standby power system for a building or structure? A. GeneratorsB. Surge protection devices C. Surge arrestersD. Transformers 8. If the system bonding jumper in a DC system is a screw, what color must the screw be? A. WhiteB. RedC. Orange D. Green 9. If overcurrent protection is provided in the transformer of a separately derived system, which of the following statements is correct? A. An equipment grounding conductor must be run with the conductors between the transformer and the building's disconnect. B. There's no need for service equipment or a panelboard in the separate building.C. A ground electrode must…a.2. Which of the following statements about grounding electrode conductors is true?A. They restrict the ground connection.B. They eliminate potential differences between conductive objects and the Earth electrode.C. They facilitate operation of overcurrent protective devices.D. They perform bonding between the Earth and grounded conductors.a.3. Main bonding jumpers are required to be made of _______ or other corrosion-resistant material.A. brassB. aluminumC. copperD. copper-clad aluminumof p o How many conductors enter the ceiling fan/light wall box? Switch ond out let boxes s tirst 10. What type and size of box may be used for the ceiling fan/light wall box?. 11. What type of covers are used with 4 in. square outlet boxes? 12. a. Does the circuit for the Master Bedroom have a grounded circuit conductor? b. Does it have an equipment grounding conductor? c. Explain the difference between a "grounded" conductor and an "equipment grounding" conductor. 13. Approximately how many feet (meters) of 2-wire cable and 3-wire cable are needed to ft complete the circuit supplying the Master Bedroom? Two-wire cable: ft (- m). m). Three-wire cable: 14. If the cable is laid in notches in the corner studs, what protection for the cable must be provided? 15. How high are the receptacles mounted above the finished floor in this bedroom? 16. Approximately how far from the bedroom door is the first receptacle mounted? (See the plans.) 17. What is the distance from the finished floor to…
- 6.a. A run of conduit that will carry several conductors is installed inside a wall. The wall is later finished sothat the run of conduit is no longer visible. This is an example of a(n)A. load.B. device.C. NEC violation.D. concealed raceway.6.b. Since the voltages across each branch circuit in a residence are the same, these circuits areA. connected in series.B. connected in parallel.C. controlled circuit configurations.D. complex circuit configurations.19. What size copper bonding jumper must be used in an AC electrical system that has 500 kcmil copper phase conductors? A. 4/0 B. 1/0 C. 2/0 D. 3/0 20. A neutral disconnect link is usually in the form of a _______ in larger service equipment. A. screwB. wireC. clamp D. busbar6. Which of the following statements about bonding is true?A. The strike terminals of a lightning protection system must be bonded to the building or structure grounding electrode system.B. Bonding requirements on the supply side of the service disconnect are less restrictive.C. Wire-type supply-side bonding jumpers are usually short in length and installed from the service-entrance conductor to asingle raceway.D. Metal water piping systems have one set of rules in the National Electrical Code.
- 3. 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 isn't allowed for use as an EGC.B. Structural steel can be used as an EGC bonding jumper between panelboards.C. Structural steel must have an EGC bonding jumper every three feet of structure.D. Structural steel can be used as an EGC when it's bonded at both ends.8. You're installing type AC cable. The armor coating of type AC cable is allowed for use as an equipmentgrounding conductor (EGC) because of itsA. liquid-tight fittings listed for EGC purposes.B. interlocking ribs that form a complete circuit.C. internal bare bonding strip.D. internal bare aluminum bonding conductor.COLUMN A COLUMN B A copper wiring containing 8 color-coded 1. conductors or 4 twisted pairs that offers greater bandwidth for local area networks. A. LEGEND 2. distribution device. A wiring pattern that connects to a central B. HOMERUN 3. Another term for an 8-pin modular jack. C. OVERCURRENT 4. A coaxial cable quad shielded with all copper center conductor used for cable TV. D. INSULATOR It is the maximum current that a conductor can 5. carry without exceeding its temperature rating. E. SHORT CIRCUIT 6. A wiring job where many cables enter a device or a junction box that is considered an unsafe practice in electrical wiring, F. CIRCUIT BREAKER 7. An electrical safety device designed to protect an electrical circuit from damage. G. ARC FLASH 8. unintended path with very low resistance. Occurs when an electrical current flows in an H. AMPACITY 9. amperage capacity of the circuit. Occurs when the current exceeds the rated I. UTP 10. A method of extending an electrical wire to the ground…