Talent Search - II

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| By Yogesh132
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Yogesh132
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Quizzes Created: 1 | Total Attempts: 476
| Attempts: 476
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  • 1/24 Questions

    A possible cause of an open circuit would be:

    • A loose component mount.
    • A corroded connection.
    • A pin pushed out of a connector.
    • All of the above.
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About This Quiz

This quiz assesses knowledge in electronics, focusing on the use of tools like ohmmeters, voltmeters, oscilloscopes, and ammeters. It tests understanding of their applications and measurements in practical scenarios.

Talent Search - II - Quiz

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  • 2. 

    Technician A says a voltmeter is connected in series to measure voltage. Technician B says it is connected in parallel. Who is correct?

    • Technician A only.

    • Technician B only.

    • Both Technicians A and B.

    • Neither Technicians A nor B.

    Correct Answer
    A. Technician B only.
    Explanation
    Voltmeters are connected in parallel or across a circuit.

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  • 3. 

    If a fuse blows again after it has been replaced, what is the most likely cause:

    • Resistance in the circuit is too high.

    • The ground point has become disconnected.

    • Current or "amps" through circuit too high.

    • Open circuit in component.

    Correct Answer
    A. Current or "amps" through circuit too high.
    Explanation
    A drop in circuit resistance will cause current flow to increase.

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  • 4. 

    In using a voltmeter to measure the voltage drop across a resistance, the two leads are:

    • Connected one on each side of the resistance without break the circuit.

    • Connected anywhere in the circuit after breaking the circuit.

    • connected to the resistance after removing it from the circuit.

    • Connected to the resistance after removing it from the circuit.

    Correct Answer
    A. Connected one on each side of the resistance without break the circuit.
    Explanation
    A voltace drop measurement is the fastest way to identify resistance problems.

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  • 5. 

    A DVOM (digital volt meter) is being used to measure current flow. The meter indicates 154 mA. Technician A says this is 0.154 amps. Technician B says this is 1.54 amps because the decimal point must be moved 4 decimal points to the left.

    • Technician A

    • technician B

    • Both technicians A and B.

    • Neither

    Correct Answer
    A. Technician A
    Explanation
    To convert mA to A, move the decimal point three places to the left. 1000 mA equals 1 A.

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  • 6. 
    The analog voltmeter reading shown below is: - ProProfs

    The analog voltmeter reading shown below is:

    • 11.0 volts.

    • 22.0 volts.

    • 2.2 volts.

    • 0.22 volts.

    Correct Answer
    A. 2.2 volts.
    Explanation
    2.2 volts with the slector knob set to the 4.0 volt range

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  • 7. 

    Before connecting an ohmmeter to a circuit, you should first:

    • Operate the circuit.

    • Set the range selector to the highest range.

    • Check the circuit with a voltmeter to make sure the circuit is not powered.

    • Install new batteries.

    Correct Answer
    A. Check the circuit with a voltmeter to make sure the circuit is not powered.
    Explanation
    Voltage will damage the ohmmeter. Verify the cirucit is electrially dead.

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  • 8. 

    What can cause an excessive voltage drop?

    • Excessively large size wires.

    • Too much insulation on the wire.

    • Excessive resistance in any part of the circuit.

    • A short bypassing the load being tested.

    Correct Answer
    A. Excessive resistance in any part of the circuit.
    Explanation
    Electrons will give up voltage as heat to get past the resistance.

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  • 9. 

    A Digital Ohmmeter is being use to measure a component. The meter indicates 3.725K ohms. This indicates

    • 0.3725 ohms.

    • 3.725 ohms.

    • 3,725 ohms.

    • 3,725,000 ohms.

    Correct Answer
    A. 3,725 ohms.
    Explanation
    The K equals 1000. Move the decimal point three places to the right (replace the K with three zeros).

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  • 10. 

    Oscilloscopes can be used to

    • view the shape of voltage waveforms.

    • Measure voltage over a period of time.

    • measure resistance.

    • Both a and b

    Correct Answer
    A. Both a and b
    Explanation
    Oscilloscopes display the shape of voltage waveform over a period of time.

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  • 11. 

    When using an ammeter to measure current:

    • Open the circuit and connect the meter in series between the two open ends.

    • Open the circuit at the positive and negative terminals of the battery.

    • connect the meter across the battery or load.

    • open the circuit at one point and connect the meter to one end.

    Correct Answer
    A. Open the circuit and connect the meter in series between the two open ends.
    Explanation
    Amp meters are placed in series with a working circuit to measure current.

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  • 12. 

    When measuring an unknown voltage or current, set the range selector at:

    • The point midway between the lowest and the highest range.

    • any point, and work downward and upward until the proper range is determined.

    • the highest point, and work downward until the proper range is determined.

    • The lowest point, and work upward to the proper range.

    Correct Answer
    A. the highest point, and work downward until the proper range is determined.
    Explanation
    Always start at the highest settings and work down.

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  • 13. 

    When performing a continuity check using a Fluke digital ohmmeter, a reading of 'OL' would indicate:

    • An open.

    • a short.

    • An internal ground.

    • proper continuity.

    Correct Answer
    A. An open.
    Explanation
    OL means over limit (open circuit).

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  • 14. 

    To measure the voltage drop of a connector, the volt meter should be connected:

    • In series, between the connector and the battery.

    • in parallel, across each side of the connector.

    • in parallel, between the connector and the battery.

    • in series, between the connector and the circuit load.

    Correct Answer
    A. in parallel, across each side of the connector.
    Explanation
    The circuit must remain intact with a voltmeter lead attached on each side. The voltmeter will measure the difference in electrial voltage potential (voltage drop) between each of the two voltmeter leads.

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  • 15. 

    A fuse burns out whenever the Brake pedal (stop light switch) is depressed, Technician A says a short circuit is present before the switch and a short finder is required. Technician B says the short circuit is complete when the switch is closed and must be after the switch. Who is correct?

    • Technician A only.

    • Technician B only.

    • Both Technicians A and B.

    • Neither Technicians A nor B.

    Correct Answer
    A. Technician B only.
    Explanation
    Since the fuse blows only when the pedal is depressed, it must be after the switch but before the load .

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  • 16. 
    The voltmeter in the circuit below should read: - ProProfs

    The voltmeter in the circuit below should read:

    • 12.0 volts.

    • 0.0 volts.

    • source voltage.

    • 6.0 volts.

    Correct Answer
    A. source voltage.
    Explanation
    With an open switch, source voltage runs all the way to the open.

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  • 17. 
    Referring to the picture below, Technician A states that a voltmeter is the best meter for measuring for an unwanted battery drain. Technician B states that an ammeter is the best meter to use for checking for an excessive battery drain, because it measures how much of a drain there is. Who is correct: - ProProfs

    Referring to the picture below, Technician A states that a voltmeter is the best meter for measuring for an unwanted battery drain. Technician B states that an ammeter is the best meter to use for checking for an excessive battery drain, because it measures how much of a drain there is. Who is correct:

    • Technician A only.

    • Technician B only.

    • Both Technicians A and B.

    • Neither Technicians A nor B.

    Correct Answer
    A. Technician B only.
    Explanation
    An amp meter in series with the battery will allow you to measure battery drain.

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  • 18. 

    Technician A says that a digital meter is preferred to an analog meter when measuring sensitive computer circuits. Technician B says that an analog meter might overload a computer circuit. Who is correct?

    • Technician A only.

    • Technician B only.

    • Both Technicians A and B.

    • Neither Technicians A nor B.

    Correct Answer
    A. Both Technicians A and B.
    Explanation
    Both statements are true.

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  • 19. 

    A pulsing voltage is easiest to read on

    • Digital voltmeter.

    • Meter with a needle.

    • Meter that measures resistance.

    • Digital ohmmeter.

    Correct Answer
    A. Meter with a needle.
    Explanation
    Pulsating voltages are easiest read on an analog meter.

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  • 20. 

    When checking a normally open relay (with four terminals) with and ohmmeter, no continuity will be shown between two terminals and the other two terminals will show:

    • No continuity.

    • Resistance somewhere between 40ohms and 120 ohms.

    • Perfect continuity (0 ohms).

    • About 2000 ohms.

    Correct Answer
    A. Resistance somewhere between 40ohms and 120 ohms.
    Explanation
    Many automotive relay will have control coil resistances of 40 ohms to 120 ohms.

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  • 21. 

    In solid state circuits, the following must be used:

    • an analog meter with an electromagnetic coil.

    • a digital meter.

    • low impedance meter.

    • A analog meter.

    Correct Answer
    A. a digital meter.
    Explanation
    High impedance meters are required on solid state circuits. All digital meters are high impedance meters.

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  • 22. 
    He lamp in the circuit below glows dimly. A voltmeter indicates 12.6 volts at the lamp. Technician

    He lamp in the circuit below glows dimly. A voltmeter indicates 12.6 volts at the lamp. Technician "A" says that a bad ground at the lamp could be the cause. Technician "B" says that high resistance in the circuit from the battery to the lamp could be the cause. Who is correct?

    • Technician A only.

    • Technician B only.

    • Both Technicians A and B.

    • Neither Technicians A nor B.

    Correct Answer
    A. Technician A only.
    Explanation
    With source voltage at the lamp the circuit up to that point is funtioning correctly.

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  • 23. 

    With all accessories turned off, the current (Parasitic) drain on the battery should be:

    • zero.

    • Under 35 milliamperes.

    • Under 100 milliamperes.

    • under 3 amperes.

    Correct Answer
    A. Under 35 milliamperes.
    Explanation
    For most current model vehicles, parasitic drain should be under 35 milliamps.

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  • 24. 

    An audible short finder is being used. The transmitter is placed at the fuse box and the receiver is passed along the wire. Technician A say it will be beep rapidly at the point of ground (short). Technician B says that it will beep only when the short is located. Who is correct?

    • Technician A only.

    • Technician B only.

    • Both Technicians A and B.

    • Neither Technicians A nor B.

    Correct Answer
    A. Technician A only.
    Explanation
    The tone will increase at the short then decrease as you move away.

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Quiz Review Timeline (Updated): Jan 2, 2024 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jan 02, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 30, 2009
    Quiz Created by
    Yogesh132
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