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Comments
Question
A positive AND gate is also a negative
Options
A. NAND gate
B. NOR gate
C. AND gate
D. OR gate
E. None of the above
Correct Answer
OR gate
Explanation
Digital Computer Electronics problems
Search Results
1. An OR gate can be imagined as
Options
A. switches connected in series
B. switches connected in parallel
C. MOS transistors connected in series
D. All of the above
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: switches connected in parallel
2. With a NAND latch a low R and a low S produce a _____ condition.
Options
A. race
B. set
C. reset
D. no change
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: race
3. A _____ TTL device can sink up to 16mA and can source up to 400 MA.
Options
A. Low-power
B. high-power
C. Standard
D. Schottky
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: Standard
4. Digital design often starts by constructing a _____ table.
Options
A. Standard
B. Two-stage
C. Truth
D. Two-dinensional
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: Truth
5. An OR gate has 6 inputs. What is the only input word that produces a 0 output?
Options
A. 000000
B. 000111
C. 111000
D. 111111
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 000000
6. How many inputs signals can a gate have?
Options
A. one
B. more than one
C. two only
D. both (a) and (b)
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: both (a) and (b)
7. Conversion of decimal number 67
10
to it's octal number equivalent is
Options
A. 100
8
B. 103
8
C. 109
8
D. 99
8
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 103
8
8. The time required for a pulse to decrease from 90 to 10 percent of its maximum value is known as
Options
A. rise time
B. decay time
C. binary level transition period
D. propagation delay
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: decay time
9. Which of the following flip-flops is free from race around problem?
Options
A. T flip-flop
B. SR flip-flop
C. master slave JK flip-flop
D. All of the above
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: master slave JK flip-flop
10. What logic function is obtained by adding an inverter to the inputs of an AND gate?
Options
A. OR
B. NAND
C. XOR
D. NOR
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: NOR
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