Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Which of the following are known as the “linking cells” of the human
brain?
A. | Neurons. | B. | Protons. | C. | Neutrons. | D. | Electrons |
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2.
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Which of the binary numbers below is equal to 6 in the decimal system of
notation?
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3.
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Technician A says in computer language a 0 or 1 is called a bit.
Technician B says in computer language a 0 or 1 is called a byte. Who is right?
A. | A only. | B. | B only. | C. | Both A and
B. | D. | Neither A nor B. |
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4.
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To comply with the Clean Air Act of 1977, “self-adjusting” engines
were introduced in _____.
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5.
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In which type of logic gate must both inputs be “on” to produce an
output voltage?
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6.
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Which of the following is not a type of computer memory?
A. | ROM. | B. | RAM. | C. | PROM. | D. | PRAM. |
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7.
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Which of the following is another name for an automotive computer?
A. | Electronic Control Unit. | B. | Electronic Control Module. | C. | Electronic Control
Assembly. | D. | All of the above. |
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8.
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Technician A says both inputs of an AND gate must be one (1) to produce
an output. Technician B says both inputs of an AND gate must be zero (0) to produce an
output. Who is right?
A. | A only. | B. | B only. | C. | Both A and
B. | D. | Neither A nor B. |
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9.
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Most automotive computer systems use a signal amplitude of about _____
volts.
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10.
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Which type of computer memory loses its contents if power is interrupted?
A. | EPROM. | B. | RAM. | C. | ROM. | D. | KAM. |
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True/False
Indicate whether the
statement is true or false.
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11.
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The interaction between the different computers in a vehicle's computer
network is referred to as multiplexing.
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12.
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The three stages of computer operation are input, programming, and
output.
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13.
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In the binary system, 1 designates off and 0 designates on.
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14.
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Automotive computers can be located in the passenger or engine compartment, in
the trunk, or under the seats.
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15.
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An active sensor is one that generates its own voltage signal.
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16.
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The term microprocessor means small computer.
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17.
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Wheel speed sensors provide necessary information for the anti-lock braking
system.
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18.
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Beginning with the 2011 model year, diagnostic systems in all new vehicles were
required to be CAN-compliant.
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19.
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A solenoid is an actuator that reacts to a small control signal from the
computer to control a much higher current flow to large components or systems.
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Matching
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Match the following terms and identifying phrases. A. | Ignition module. | B. | Climate control module. | C. | Instrumentation
module. | D. | HV Power control module. | E. | Powertrain control module. | F. | Vehicle control
module. |
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20.
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Alters current and routes it between the battery pack and
motor-generator.
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21.
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Large, powerful computer that coordinates functions such as engine,
transmission, and traction control.
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22.
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Uses sensor inputs to control ignition timing and spark plug firing.
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23.
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Small computer that uses sensor inputs to operate a digital dash
display.
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24.
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Controls operation of the heating, ventilation, and air conditioning
systems.
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25.
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Powerful computer used to control and monitor the engine and
transmission.
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Match the following computer gate symbols with their names.
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26.
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AND gate
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27.
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OR gate
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28.
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NOT gate
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29.
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NOR gate
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30.
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NAND gate
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Match each of the following waveforms with their names.
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31.
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DC ramp wave
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32.
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DC square wave
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33.
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DC with noise
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34.
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DC sine wave
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35.
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Complex sine wave
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Identify each of the parts of the analog signal shown.
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36.
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Peak top
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37.
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Negative AC voltage
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38.
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Valley bottom
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39.
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AC voltage off
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40.
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Slope
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