Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Electricity is the flow of ___________ in a conductor.
a. | protons | c. | electrons | b. | neutrons | d. | photons |
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2.
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The electrical wall outlets at home are a source of _________ current.
a. | direct | c. | both direct and alternating | b. | alternating | d. | none of the above |
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3.
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Alternating current is one type of electrical current, what is the other
type?
a. | In-rush current | c. | Direct current | b. | River current | d. | Unaltered
current |
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4.
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Constant voltage power supplies will maintain a constant voltage output under
varying _______.
a. | loads | c. | levels of light | b. | weather conditions | d. | chemical
reactions |
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5.
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Which of the following is not a component of a basic electrical circuit?
a. | Input device | c. | Insulator | b. | Output device | d. | Power supply |
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6.
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A simple method for opening or closing a circuit is to use a ___________.
a. | switch | c. | screwdriver | b. | knife | d. | none of the
above |
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7.
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Which of the following is true of an electrical schematic diagram?
a. | Represents components with standard symbols. | c. | Is helpful in troubleshooting a
circuit. | b. | Shows how the components are interconnected. | d. | all of the
above. |
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8.
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Which of the following is a manually operated switch?
a. | Pushbutton switch | c. | Knife Switch | b. | Selector switch | d. | All of the
above |
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9.
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The contacts of a(n) ___________ switch are open until acted on by the
operator.
a. | normally closed | c. | normally open | b. | adjacent | d. | normally
simulated |
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10.
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Which of the following is an electrical output device?
a. | Motor | c. | Resister | b. | Lamp | d. | All of the
above |
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11.
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Rotary motion is the output of which electrical output device?
a. | Buzzer | c. | Motor | b. | Resister | d. | Solenoid |
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12.
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A knife switch consists of a lever and one or more sets of _____________.
a. | conductors | c. | knives | b. | operators | d. | contacts |
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13.
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A(n) ________________ determines if electricity is present in a circuit.
a. | ohmmeter | c. | ammeter | b. | circuit tester | d. | solenoid |
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Matching
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Segment 1
a. | alternating | e. | electricity | b. | battery | f. | circuit tester | c. | current | g. | AC | d. | direct | h. | power supply |
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14.
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__________ is the flow of electrons in a conductor.
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15.
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__________ delivers electrical power to the point of use.
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16.
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A device that creates electrical current is call a(n) _________.
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17.
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The flow of electricity in only one direction is call _________
current.
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18.
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A common source of DC is a(n) _________
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19.
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The flow of electrons in one direction and then the other direction is called
_________ current.
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20.
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The output from an electrical wall outlet is ______ current.
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21.
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A(n) ________ uses a tiny neon bulb that glows when current flows through
it.
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Segment 2
a. | load | d. | voltage | b. | conductor | e. | switch | c. | chemical | f. | schematic |
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22.
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A common input device is a(n) ________.
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23.
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An output device is also called a(n) __________.
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24.
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A(n) ________ connects all of the components in an electrical circuit.
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25.
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Electrical ________ diagrams are forms of visual shorthand where each
componenet is represented by a standard symbol.
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26.
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A constant ________ power supply maintains the same output voltage regardless
of the load connected to it.
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27.
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A battery depends on a(n) ___________ reaction to produce electricity.
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Segment 3
a. | automatic | d. | operator | b. | spring | e. | open | c. | switch |
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28.
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A simple method for opening and closing a circuit is to use a(n)
________.
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29.
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The two main components of a swithc are the ________ and the contacts.
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30.
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The two basic categories of electrical switches are manual and
___________.
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31.
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If the path is broken in some way, the circuit is said to be _________.
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32.
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A(n) _______ makes a manually-operated switch momentary.
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Segment 4
a. | solenoid | d. | sound | b. | lamp | e. | heat | c. | rotary |
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33.
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A(n) __________ is an output devices that gives off light.
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34.
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A(n) __________ produces mechanical linear motion.
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35.
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A resistor will five off __________.
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36.
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A buzzer will give off __________.
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37.
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A motor is an output device that produces ________ mechanical motion
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