Watts, Amps, Volts
A circuit has 120 volts and 5 amps. How many watts are used?
25 watts
What size breaker is needed for a circuit drawing 16 amps continuously?
20 amp
How many traveler wires connect between two 3-way switches?
2
What gets connected to the green screw on an outlet?
Ground wire
What is the purpose of a transformer in a circuit?
To change the voltage
A tool draws 8 amps on a 120-volt circuit. What is the wattage?
906watts
What breaker size is used for most standard household outlets?
15amp
In a 4-way circuit, how many switches can control one light?
3 or more.
What gets connected to the gold screw on an outlet or a light?
The black or hot wire
Why is it important to have your breaker panel clearly marked?
To turn off specific circuits in your house.
A welder uses 20 amps on a 240-volt circuit. How many watts is this?
4800watts
A 10-gauge wire is typically used for what amperage rating?
30amp
What color are the common terminals typically found on 3-way switches?
Gold
What gets connected to the silver screw on a lamp or outlet?
neutral or white wire.
Which vocabulary word means
The amount of power in a circuit, it equals 1 volt x 1 amp.
watt
A small motor operates at 6 amps and produces 720 watts. What voltage is it using?
120volts
What size wire would be needed for a 30-amp dryer circuit?
10 guage
Where is the 4-way switch located in a 4-way lighting circuit?
In the middle between the 3 way switches
On the GFCI outlet there were two ports to connect the black wires. These were called ______ and ______.
Line and Load
What is the difference between a generator and an electric motor?
One produces electricity through mechanical energy, the other produces mechanical energy through electricity.
A light fixture has 11 bulbs, each bulb consumes 11 watts, the fixture is on a 120-volt circuit. How many amps does it draw? Round your answer to the nearest hundredth.
.99 amps
A double 30amp breaker can handle how many watts before tripping?
240 x 30amp = 7,200
For switched receptacles in the kitchen (20amp breaker), what size wire should be run?
12-2 , 12-3 , 10-2 , 10-3 , 14-2 , 14-3
12-3
What part of the electricity does the dimmer switch change?
voltage
What does the term GFCI stand for? You get 100 points for each of the three letters.
Ground Fault Circuit Interrupter