Digital Concepts problems
- 1. With an AND gate, if one input is HIGH, the output reflects the other input.
Options- A. True
- B. False Discuss
Correct Answer: True
- 2. The time interval on the leading edge of a pulse between 10% and 90% of the amplitude is the rise time.
Options- A. True
- B. False Discuss
Correct Answer: True
- 3. The real world is mainly analog.
Options- A. True
- B. False Discuss
Correct Answer: True
- 4. It is possible to have an overlap between high and low levels in digital logic.
Options- A. True
- B. False Discuss
Correct Answer: False
- 5. Digital systems have ________.
Options- A. one state
- B. two states
- C. three states
- D. four states Discuss
Correct Answer: two states
- 6. The horizontal axis of an oscilloscope is normally calibrated in units of ________.
Options- A. voltage
- B. current
- C. time
- D. frequency Discuss
Correct Answer: time
- 7. The digit that changes most often when counting is called the ________.
Options- A. LSB
- B. LL Bean
- C. LED
- D. LCD Discuss
Correct Answer: LSB
- 8. The controls on an oscilloscope that will help obtain a stable display are in the ________.
Options- A. vertical section
- B. horizontal section
- C. trigger section
- D. display section Discuss
Correct Answer: trigger section
- 9. The duty cycle of a square wave is ________.
Options- A. 10%
- B. 25%
- C. 50%
- D. 100% Discuss
Correct Answer: 50%
- 10. A set of instructions for a computer is called a(n) ________.
Options- A. instruction manual
- B. logic unit
- C. program
- D. diagram Discuss
Correct Answer: program
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