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TPC 291 Digital Logic Fundamentals Exam Questions and Answers
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TPC 291 Digital Logic Fundamentals ExamQuestions and Answers
In Boolean algebra, all functions can be expressed by equations based on
what three operations? - -AND, OR, and NOT
TPC 291 Digital Logic Fundamentals p. 5
- For an AND gate, the output is TRUE is input A is ______ and input B is
______. - -TRUE, TRUE
TPC 291 Digital Logic Fundamentals p. 6
- A solid-state logic switch must be able to... - -indicate which state is at its
input
TPC 291 Digital Logic Fundamentals p. 8
- The AND function in positive logic is equivalent to the ______ function in
negative logic. - -OR
TPC 291 Digital Logic Fundamentals p. 10
- If CMOS logic is used in a circuit with TTL logic, the input voltage usually is
______. - -5V
TPC 291 Digital Logic Fundamentals p. 15
- An applications requires an R-S flip-flop that will trigger when S goes HIGH
and reset when R goes HIGH. The required flip-flop can be made of ______
gate(s). - -two NOR
TPC 291 Digital Logic Fundamentals p. 22
- The advantage of using an R-S flip-flop with a mechanical switch is that the
flip-flop ______ the output when the switch changes. - -eliminates extra
pulses from
- The output of a clocked flip-flop will change only when the clock pulse is
______. - -present
TPC 291 Digital Logic Fundamentals p. 23
- If you need to use a sine wave to control the frequency of a logic clock, you
can use a(n) ______ to produce sharp clock pulses. - -Schmitt trigger
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