| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.26 |
| Score | 0% | 65% |
What is the voltage of most household electrical systems in the United States?
60Hz |
|
60V |
|
110V |
|
220V |
Most households use electricity with a voltage of 110V.
An engineer who wants to document an electric circuit would create which of the following?
a matrix |
|
a blueprint |
|
a schematic |
|
a layout |
A schematic is the proper name for a drawing of an electric or electronic circuit.
What is the frequency of most household electrical systems?
60Hz |
|
60MHz |
|
110Hz |
|
110V |
Electricity is delivered from power stations to customers as AC because it provides a more efficient way to transport electricity over long distances. Most households use electricity with a frequency of 60Hz.
The joule is a unit of measurement for:
energy |
|
power |
|
resistance |
|
capacitance |
The joule is a unit of measurement for energy.
Longer the electrical wires mean _______________ voltage drop.
diminishing |
|
lesser |
|
complete |
|
greater |
Electrical wires have a certain amount of resistance per foot. A longer wire means more resistance and a greater voltage drop.