| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.29 |
| Score | 0% | 66% |
An engineer who wants to document an electric circuit would create which of the following?
a blueprint |
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a matrix |
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a layout |
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a schematic |
A schematic is the proper name for a drawing of an electric or electronic circuit.
Which of the following is the preferred method for splicing wires?
wrap in small gauge wire |
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soldering |
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wire crimps |
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screw-on connectors |
Splicing is permanently joining two wires together. Splicing can be done with screw-on connectors or wire crimps but the preferred method for splicing is soldering. Soldering takes the most effort but results in a connection that is electrically and mechanically identical to the original wire.
This circuit component symbol represents a(n):
capacitor |
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transformer |
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AC source |
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DC source |
Direct current flows in only one direction in a circuit, from the negative terminal of the voltage source to the positive. A common source of direct current (DC) is a battery.
A capacitor is often used for which of the following purposes?
as a primary power source |
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to maintain power in a circuit when the primary power source is disconnected |
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to convert alternating current into direct current |
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to allow a small amount of current to control a large amount of current |
Capacitors store electricity and are used in circuits as temporary batteries. Capacitors are charged by DC current (AC current passes through a capacitor) and that stored charge can later be dissipated into the circuit as needed. Capacitors are often used to maintain power within a system when it is disconnected from its primary power source or to smooth out or filter voltage within a circuit.
The hertz is a unit of measurement for:
energy |
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frequency |
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inductance |
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power |
The hertz is a unit of measurement for frequency.