Download Electricity Test

Electricity Test 1
1. Most people use this type of circuit protection in their homes
a. fuse
b. breaker
c. grounding fuse
d. larger wire than is actually needed
2. A circuit that uses size 14 wire would use a __________ size breaker.
a. 15
b. 20
c. 30
d. 40
3. A device that is used to protect an overload on a circuit. Its’ drawback is that it can
only be used one time.
a. fuse
b. breaker
c. grounding fuse
d. automatic heat sensing device
4. A circuit breaker can be used
a. only once
b. over and over
c. only for a week
d. in wet locations
5. Which size wire will carry the most amperage?
a. 8
b. 10
c. 12
d. 14
6. Which size wire will get hot if connected to a 20 amp breaker?
a. 10
b. 12
c. 14
d. 8
7. Which wire has the smallest diameter?
a. 4
b. 8
c. 10
d. 14
8. Which of the following would not be “pasted” on electrical wire about every 18
inches?
a. AWG size
b. number of conductors
c. voltage carrying capacity
d. protection requirements
9. The prefix kilo- means ___________
a. 100
b. 1000
c. 10000
d. 100000
10. Electrical power is measured in _____________.
a. volts
b. amps
c. watts
d. ohms
11. Electrical Pressure is measured in _____________.
a. volts
b. amps
c. watts
d. ohms
12. Electromotive Force is also referred to as
a. volts
b. amps
c. watts
d. ohms
13. 5,680 watts =
a. .5680 kwh
b. 5.680 kwh
d. 56.80 kwh
e. 568.0 kwh
14. 7.896 kwh =
a. 78.96 watthours
b. 789.6 watthours
c. 7896.0 watthours
d. 78960 watthours
15. A controlled path for electricity to flow is a
a. service entrance wire
b. circuit
c. amp rated wire
d. voltage regulator
16. Which of the following formulas is correct?
a. volts = watts x amps
b. amps = volts x watts
c. amps = watts x volts
d. watts = volts x amps
17. The opposition to the flow of electricity is referred to as
a. voltage
b. wattage
c. amperage
d. resistance
18. A substance that does not allow for the flow of electricity is referred to as a
a. conductor
b. insulator
c. regulator
d. procrastinator
19. A one horse power motor will consume __________ watts.
a. 467
b. 746
c. 647
d. 747
20. The most common used metal for electrical wire construction is
a. aluminum
b. gold
c. copper
d. copper aluminate
21. Fuses and breakers are rated in
a. amps
b. volts
c. ohms
d. watts
22. A 120 volt circuit has a 200 watt bulb running on it. How many amps is it pulling?
a. 240
b. 1.667
c. 24000
d. .6
23. How many watts are being used in a 120 volt circuit that is pulling 7 amps?
a. 840
b. 17.14
c. .058
d. 8400