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Test Bank For Digital Electronics Principles And Applications 8Th Edition By Roger Tokheim

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Chapter 003-Logic Gates True / False Questions 1. The basic building block of any digital circuit is a flip-flop. True False 2. Positive logic is most often used in digital electronics. True False 3. The Boolean expression is a universal language used by engineers and technicians in analog elec...

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  • October 1, 2023
  • 235
  • 2022/2023
  • Exam (elaborations)
  • Questions & answers

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  • test bank for digital electronics principles
  • test bank for digital electronics

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  • Digital Electronics - Test Bank
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, Chapter 001- Digital Electronics


True / False Questions


1. Most newly designed electronic devices contain digital circuitry.
True False



2. Digital circuitry is almost always unaffected by unwanted electrical interference called
noise.
True False



3. A digital device is one that has a signal which varies continuously in step with the input.
True False



4. The DMM is an example of digital circuitry taking over tasks previously performed only by
analog devices.
True False



5. Digital signals are composed of two well-defined voltage levels.
True False



6. Latch circuits are sometimes called amplifiers.
True False



7. A bi-stable multivibrator is often referred to as a clock.
True False




1-1

, Chapter 001- Digital Electronics



8. The monostable multivibrator responds to an input trigger pulse with an output pulse of a
given width.
True False



9. The pulse width generated by a one-shot multivibrator is dependent on the design of the RC
time constant.
True False



10. A portable measuring device used to determine output logic levels is the analog
voltmeter.
True False



11. To use a function generator, the shape of the waveform must be selected first.
True False



12. The function of the oscilloscope is to graph signal versus input voltage.
True False



13. Time is on the vertical distance on the screen of an oscilloscope.
True False



14. Analog electronic signals are usually generated and processed by integrated circuits.
True False



15. The central processing unit of a computer can manipulate the input data, output the
information, store the information and calculate results when required.
True False




1-2

, Chapter 001- Digital Electronics



16. To toggle means to switch over to an opposite state.
True False



17. If neither indicators of a logic probe light, it usually means the voltage is between high
and low in an area known as the undefined region.
True False



18. On an oscilloscope, time is the vertical distance on the screen and voltage is the horizontal
deflection.
True False




Multiple Choice Questions


19. For TTL, the logic probe will indicate a high for
A. less than 1 V
B. less than 2 V
C. 0 V
D. 2 V or greater



20. A test instrument that graphs time versus input voltage is
A. a logic probe
B. an oscilloscope
C. a function generator
D. a digital meter



21. Which of the following is not a sign that a device contains digital circuitry?
A. an alphanumeric display
B. a memory
C. a CRT display
D. the device can be programmed




1-3

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