Neets Module 21 Assignment 1

  1. What assures the accuracy of your electronic test equipment?
    Its calibration.
  2. The input impedance of your test equipment should exceed the impedance of the circuit under test by what ratio?
    10 to 1
  3. What are the advantages of using two voltmeters in series?
    Increased input impedance, greater accuracy, and increased voltage range.
  4. At what point on a meter movement are the most accurate readings taken?
  5. What are the advantages of using a differential voltmeter?
    Accuracy and high input impedance.
  6. The frequency response of test equipment refers to what aspect of ac voltage measurements?
    The range of frequencies that can accurately be measured.
  7. Ideally, an oscilloscope presentation should cover what vertical portion of the screen?
    At least 60% of the vertical trace.
  8. What are the advantages of connecting ammeters in parallel when performing current measurements?
    Decreased internal meter resistance, greater accuracy, and greater current range.
  9. What is the primary advantage of using a current probe?
    • Current probes enable you to perform current measurements without disconnecting wires.
    • Current probes are clamped around the insulated wire.
  10. How do you compensate for the resistance of the test leads of a meter?
    By zeroing the meter with the test leads shorted.
  11. Why are digital multimeters well suited for testing sensitive devices?
    The current flow through the component is limited to 1 milliamp.
  12. Charged capacitors can kill. True or false?
  13. Which is more accurate, the bridge- or reactance-type meter?
    Bridge type.
  14. What type of core produces the greatest inductance?
    Magnetic-metal core.
  15. A Hay bridge measures inductance by comparing an inductor to what component?
    A capacitor.
  16. Is the current flow through an inductor directly proportional or inversely proportional to its inductance value?
    Directly proportional.
Card Set
Neets Module 21 Assignment 1