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MCQs

Total Questions : 69 | Page 7 of 7 pages
Question 61. . Erratic or unexplained digital circuit activity is often due to _________.
  1.    a glitch
  2.    a random pulse
  3.    clock frequency changes
  4.    a change in slew rate
 Discuss Question
Answer: Option C. -> clock frequency changes
Question 62. . The device that would best aid in open track detection is a(n) ________.
  1.    multimeter
  2.    current tracer
  3.    logic probe
  4.    oscilloscope
 Discuss Question
Answer: Option B. -> current tracer
Question 63. . A check of all power supply voltages should be made during the ________ method of troubleshooting.
  1.    half-split
  2.    diagnosis
  3.    repair
  4.    final test
 Discuss Question
Answer: Option A. -> half-split
Question 64. . 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 65. . 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 66. . 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
Question 67. . Erratic or unexplained digital circuit activity is often due to _________.
  1.    a glitch
  2.    a random pulse
  3.    clock frequency changes
  4.    a change in slew rate
 Discuss Question
Answer: Option C. -> clock frequency changes
Question 68. . The device that would best aid in open track detection is a(n) ________.
  1.    multimeter
  2.    current tracer
  3.    logic probe
  4.    oscilloscope
 Discuss Question
Answer: Option B. -> current tracer
Question 69. . A check of all power supply voltages should be made during the ________ method of troubleshooting.
  1.    half-split
  2.    diagnosis
  3.    repair
  4.    final test
 Discuss Question
Answer: Option A. -> half-split

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