Week 1 Course Work

10. The unit of electrical resistance in the circuit is known as the ampere. True False

False

19. Paint used on electrical enclosures functions as a conductor. True False

False

9. The National Electrical Code (NEC®) only defines electrical circuits that are required to be grounded. True False

False

18. Bonding must be accomplished around conduit connections whenever the fault-current return path is suspect, as well as when specifically required by NEC®. True False

True

20. The electrical system is generally considered to be the source of electrical energy. True False

True

8. The grounded conductor is defined as one that is intentionally grounded or connected to earth. True False

True

4. The unit of electrical current is the ____. a. ampere b. volt c. ohm d. watt

a. ampere

12. In its simplest form, ____ completes a path through which fault current can flow. a. bonding b. grounding c. bending d. shunting

a. bonding

3. A ____ circuit is one in which there is more than one path for current to flow in. a. neutral b. parallel c. series d. resistive

b. parallel

14. The ____ of an article tells us what is contained in an article. a. definitions b. scope c. requirements d. discussion

b. scope

2. A grounding ____ is a conducting object through which a direct connection to earth is established. a. conductor b. jumper c. electrode d. generator

c. electrode

11. Electrical systems that are ____ must be connected to the earth in a way that will (1) limit the voltage imposed by lightning, line surges, or unintentional contact with higher-voltage lines and (2) stabilize the voltage of the system to the earth during normal operations. a. cycled b. shunted c. grounded d. bonded

c. grounded

1. A bonding ____ is a conductor, made of copper or aluminum, used to ensure electrical conductivity between metal parts that must be electrically connected. a. electrode b. shunter c. jumper d. transformer

c. jumper

5. Which of the following formulas represents Ohm's law? a. E (volts) = I (amperes) ÷ R (ohms) b. E (volts) = I (amperes) - R (ohms) c. E (volts) = I (amperes) + R (ohms) d. E (volts) = I (amperes) × R (ohms)

d. E (volts) = I (amperes) × R (ohms)

15. ____ current occurs when the system neutral is grounded improperly downstream from the service equipment. a. Positive b. Negative c. Phased d. Objectionable

d. Objectionable

13. The purpose of connecting non-current-carrying conductive materials to earth is to limit the ____ on these materials. a. interference b. maximum amperage c. resistivity d. voltage to ground

d. voltage to ground

16. Some manufacturers of data processing equipment refer to a conduit or branch-circuit as a(n)__________ because of the electrical interference or noise that travels on this path.

dirty ground

Soil resistivity is determined largely by its content of __________ , which consist of moisture, minerals, and dissolved salts.

electrolytes

17. The NEC® is generally written in "__________ style," stating how an installation must be made, rather than "performance style," stating general goals to be achieved.

prescriptive

6. In a(n) __________, there is only one path for current to flow.

series