Electronic Measurement Devices Quiz
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Questions and Answers

What does the resolution of a Digital Multimeter (DMM) refer to?

  • The smallest increment of a quantity that it can measure. (correct)
  • The overall durability of the device.
  • The maximum voltage it can measure.
  • The average of measured values over time.

    • In an oscilloscope, what does the horizontal (X) axis represent?

  • Time the signal takes. (correct)
  • Amplitude of the signal.
  • Resistance of the circuit.
  • Frequency of the signal.

    • What is the primary function of a spectrum analyzer?

  • To determine the phase shift of signals.
  • To display waveform shapes.
  • To analyze amplitude variations by frequency. (correct)
  • To measure the voltage of a signal.

    • Which of the following is NOT a benefit of using a Digital Multimeter (DMM) over an analog meter?

    <p>Increased reliance on analog measurement.</p> Signup and view all the answers

    When using an oscilloscope, what can be directly measured from the displayed graph?

    <p>Amplitude, period, and frequency.</p> Signup and view all the answers

    What is a primary function of a resistor?

    <p>To limit current</p> Signup and view all the answers

    What is the term used to describe the opposition to current in an electrical circuit?

    <p>Resistance</p> Signup and view all the answers

    Which type of resistor allows for the adjustment of resistance values?

    <p>Variable resistors</p> Signup and view all the answers

    Which best describes a voltage source?

    <p>A device that provides electrical energy</p> Signup and view all the answers

    What occurs in a rotary switch?

    <p>A knob is turned to connect one contact to another</p> Signup and view all the answers

    Current is defined as:

    <p>The rate of flow of charge</p> Signup and view all the answers

    Why do ideal voltage sources not exist?

    <p>They are limited by physical principles</p> Signup and view all the answers

    What characterizes a current source?

    <p>It supplies a constant current regardless of load</p> Signup and view all the answers

    What is the primary function of fuses and circuit breakers in an electrical circuit?

    <p>To open the circuit when the current exceeds a specific limit</p> Signup and view all the answers

    Which type of switch allows for the control of two different circuits simultaneously?

    <p>Double-Pole Single-Throw (DPST)</p> Signup and view all the answers

    What is the role of a capacitor in an electrical circuit?

    <p>To store and release electrical charge</p> Signup and view all the answers

    What distinguishes a normally open push-button switch from a normally closed push-button switch?

    <p>Normally open switches allow current only when pressed.</p> Signup and view all the answers

    What is the primary property exhibited by an inductor?

    <p>Inductance</p> Signup and view all the answers

    What type of electrical component is formed by two parallel conductive plates and a dielectric material?

    <p>Capacitor</p> Signup and view all the answers

    Which switch will connect to one of two output options based on its position?

    <p>Double-Pole Double-Throw (DPDT)</p> Signup and view all the answers

    What is the main purpose of the ground in an electric circuit?

    <p>To provide a reference point</p> Signup and view all the answers

    What is the primary function of a photodiode?

    <p>To convert photons into electrical current</p> Signup and view all the answers

    What characterizes a tunnel diode in terms of current behavior?

    <p>Current decreases as applied voltage increases</p> Signup and view all the answers

    What is the main purpose of a Zener diode?

    <p>To function in the reverse breakdown region</p> Signup and view all the answers

    What type of diode utilizes the inherent capacitance of its depletion region?

    <p>Varactor diode</p> Signup and view all the answers

    What distinguishes a Schottky diode from other types of diodes?

    <p>It is formed by the junction of a semiconductor and a metal</p> Signup and view all the answers

    What is a primary function of a transistor?

    <p>To amplify or switch electrical signals</p> Signup and view all the answers

    What happens to a thyristor when the forward voltage reaches a specific value?

    <p>It turns on and begins to conduct</p> Signup and view all the answers

    Which type of diode is known for illuminating when an electric current flows?

    <p>LED</p> Signup and view all the answers

    What instrument is used to measure resistance?

    <p>Ohmmeter</p> Signup and view all the answers

    Which of the following is a function of a digital multimeter (DMM)?

    <p>Measure voltage, current, or resistance</p> Signup and view all the answers

    How are ohm readings displayed on an analog multimeter?

    <p>On the top scale of the meter</p> Signup and view all the answers

    What is the primary purpose of an ammeter?

    <p>To measure current</p> Signup and view all the answers

    Which scale on a multimeter is not used for measuring voltage?

    <p>Ohm Scale</p> Signup and view all the answers

    For what purpose is the selector switch used on a multimeter?

    <p>To choose the specific quantity to measure</p> Signup and view all the answers

    What characteristic distinguishes a digital multimeter (DMM) from an analog multimeter?

    <p>DMMs can measure multiple electrical quantities.</p> Signup and view all the answers

    What happens to conduction according to the specified value?

    <p>It continues until it reaches a threshold.</p> Signup and view all the answers

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