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- Question
Which device would best aid in shorted track detection?
Options- A. multimeter
- B. current tracer
- C. logic pulser
- D. oscilloscope
- Correct Answer
- current tracer
- 1. The use of a multimeter with digital circuits allows the measurement of:
Options- A. pulse width
- B. voltage or resistance
- C. current
- D. pulse trains Discuss
- 2. The determination of a digital signal's frequency and waveshape is best accomplished with which test equipment?
Options- A. an oscilloscope
- B. a multimeter
- C. a spectrum analyzer
- D. a frequency generator Discuss
- 3. The time needed for a pulse to increase from 10% to 90% of its amplitude defines:
Options- A. pulse width
- B. propagation delay
- C. rise time
- D. duty cycle Discuss
- 4. The duty cycle of a pulse is determined by which formula?
Options- A. Duty Cycle =
- B. Duty Cycle =
- C. Duty Cycle =
- D. Duty Cycle =
Discuss
- 5. A logic probe is placed on the output of a gate and the display indicator is dim. A logic pulser is used on each of the input terminals, but the output indication does not change. What is wrong?
Options- A. The dim indication on the logic probe indicates that the supply voltage is probably low.
- B. The output of the gate appears to be open.
- C. The LOW indication is the result of a bad ground connection on the logic probe.
- D. The gate is a tri-state device. Discuss
- 6. Which test equipment best allows a comparison between input and output signals?
Options- A. an oscilloscope
- B. a logic probe
- C. a spectrum analyzer
- D. a multitrace oscilloscope Discuss
- 7. A series of gradually decreasing sine wave oscillations is called:
Options- A. ringing
- B. slew
- C. overshooting
- D. undershooting Discuss
- 8. The truth table for an S-R flip-flop has how many VALID entries?
Options- A. 3
- B. 1
- C. 4
- D. 2 Discuss
- 9. One example of the use of an S-R flip-flop is as a(n):
Options- A. transition pulse generator
- B. astable oscillator
- C. racer
- D. switch debouncer Discuss
- 10. The 555 timer can be used in which of the following configurations?
Options- A. astable, monostable
- B. monostable, bistable
- C. astable, toggled
- D. bistable, tristable Discuss
Testing and Troubleshooting problems
Search Results
Correct Answer: voltage or resistance
Correct Answer: an oscilloscope
Correct Answer: rise time
Correct Answer: Duty Cycle =
Correct Answer: The output of the gate appears to be open.
Correct Answer: a multitrace oscilloscope
Correct Answer: ringing
Correct Answer: 3
Correct Answer: switch debouncer
Correct Answer: astable, monostable
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