| A | B |
|---|
| 1. T/F The service size is determined by the amperage and voltage ratings of the service | True |
| 2. T/F The drip loop should be close to the roof surface as possible. | False the bottom of a drip loop should be well above the roof 12 to 24 inches deepening on jurisdiction |
| /F A 200-amp service will have two 100-amp fuses in the service panel | False Two 100-amp fuses indicate 100 amp service. You cannot add the two fuses together to determine a service size |
| 4. T/F There can be up to 10 throws to disconnect all of the electricity in the house | False there can be up to 6 |
| 5. T/F Electrical wiring in a house is a direct current. | . False it is an alternating current |
| 6. T/F A 120- volt circuit uses black and red wire | False 120- volt circuits use a black wire and a white wire; others use red and white |
| 7. T/F All service entrance conductors must be in a conduit. | False they may be in a conduit on the outside of the building or there maybe a special service entrance cable that does not require a conduit |
| 8. T/F Load calculations are required as part of a home inspection | False |
| 9. T/F The service box can be inside outside or in the garage. | True |
| 10. T/F You are allowed to ground the gas piping. | False much of the gas underground piping is plastic, plastic is not a good conductor of electricity. |
| 11. T/F Outlets should be as close to basins as possible | True |
| 12. Which of the following is true about Electrical resistance?Increases with increasing diameter, decreases with increasing wire diameter, decreases with increasing wire length, is higher for copper than for aluminum. | decreases with increasing wire diameter |
| 13. Assuming copper, standard wire type and normal temperature rating, what is the typical conductor size in AWG for 200-A service in the United States? | 2/0 |
| 14. The power available in a typical 15-A, 120-V household circuit is¬¬¬____? | 1800 W |
| 15. What is the frequency (cycles/second) of house-hold electricity? | 60Hz |
| 16. A service box with a black wire, red wire, white wire, and two 200-A fuses indicates a ____? | 120/240-V, 200-A service |
| 17. What would two wires entering the service weatherhead indicate to you? | An older 120-V system |
| 18. You notice rust in the service panel. Which of the following may be the cause? No drip loop, undersized conduit, damaged masthead, both a and c. | both a and c |
| 19. T/F The Best location for an outlet is immediately beside a basin in a bathroom | True |
| 20. T/F GIFI receptacles are accepted as an alternative for grounded under some circumstances. | True |
| 21. T/F A properly polarized circuit will result in the threaded collar of a lamp | True |
| 22. T/F Three way switches control lights from two different locations | true |
| 23. T/F Overloading the neutral wire on a multiwire branch circuit is likely if the black and red wires are powered by the same bus. | True |
| 24. Aluminum wiring is used on which of the following, 12- gauge circuits, 8 gauge circuits, 10 gauge circuits, commercial applications only. | 8 gauge |
| 25. Wires should not be run across the tops of ceiling joist in attics unless the attic height is less than __ inches. | 40 |
