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MCQs

Total Questions : 69 | Page 6 of 7 pages
Question 51.  The use of a multimeter with digital circuits allows the measurement of:
  1.    pulse width
  2.    voltage or resistance
  3.    current
  4.    pulse trains
 Discuss Question
Answer: Option B. -> voltage or resistance
Question 52. . "Train" and "single" is the mode selection for a _______.
  1.    multimeter
  2.    logic probe
  3.    current tracer
  4.    logic pulser
 Discuss Question
Answer: Option D. -> logic pulser
Question 53.  The use of triggered sweep when using an oscilloscope provides more accuracy in which area?
  1.    frequency
  2.    amplitude
  3.    graticule activity
  4.    timing
 Discuss Question
Answer: Option D. -> timing
Question 54. . Which device would best aid in shorted track detection?
  1.    multimeter
  2.    current tracer
  3.    logic pulser
  4.    oscilloscope
 Discuss Question
Answer: Option B. -> current tracer
Question 55. . The time needed for a pulse to increase from 10% to 90% of its amplitude defines:
  1.    pulse width
  2.    propagation delay
  3.    rise time
  4.    duty cycle
 Discuss Question
Answer: Option C. -> rise time
Question 56. . The use of a logic probe may be improved through the use of a(n) ________.
  1.    logic clip
  2.    frequency counter
  3.    oscilloscope
  4.    current tracer
 Discuss Question
Answer: Option A. -> logic clip
Question 57. . The control of digital circuits is usually achieved with _________.
  1.    random pulses
  2.    clock signals
  3.    sophisticated gating
  4.    selected frequencies
 Discuss Question
Answer: Option B. -> clock signals
Question 58. . The results of internal IC failures will usually be noticed during the ______ phase of troubleshooting.
  1.    diagnostic
  2.    isolation
  3.    repair
  4.    final test
 Discuss Question
Answer: Option A. -> diagnostic
Question 59. . In order for a logic probe to operate, its red and black leads must first be connected to a ________.
  1.    logic clip
  2.    HIGH or TRUE signal
  3.    power source
  4.    logic pulser
 Discuss Question
Answer: Option C. -> power source
Question 60. . The ideal test equipment to use for locating shorts in digital circuitry is the ________ and _______.
  1.    logic probe, clip
  2.    logic pulser, logic probe
  3.    current tracer, logic pulser
  4.    current tracer, logic clip
 Discuss Question
Answer: Option C. -> current tracer, logic pulser

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