TPC 291 DIGITAL LOGIC FUNDAMENTALS EXAM WITH QUESTIONS AND ANSWERS -7

TPC 291 DIGITAL LOGIC FUNDAMENTALS EXAM WITH QUESTIONS
AND ANSWERS #7

In Boolean algebra, all functions can be expressed by equations based on what three
operations? - correct answer 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 ______. -
correct answer TRUE, TRUE

TPC 291 Digital Logic Fundamentals p. 6

A solid-state logic switch must be able to... - correct answer 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.
- correct answer OR

TPC 291 Digital Logic Fundamentals p. 10

If CMOS logic is used in a circuit with TTL logic, the input voltage usually is ______. -
correct answer 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). - correct
answer 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. - correct answer eliminates extra pulses
from

The output of a clocked flip-flop will change only when the clock pulse is ______. -
correct answer 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. - correct answer Schmitt trigger