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Electronics
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Logic Gates
Comments
Question
Exclusive-OR (XOR) logic gates can be constructed from what other logic gates?
Options
A. OR gates only
B. AND gates and NOT gates
C. AND gates, OR gates, and NOT gates
D. OR gates and NOT gates
Correct Answer
AND gates, OR gates, and NOT gates
Logic Gates problems
Search Results
1. The basic logic gate whose output is the complement of the input is the:
Options
A. OR gate
B. AND gate
C. INVERTER gate
D. comparator
Show Answer
Scratch Pad
Discuss
Correct Answer: INVERTER gate
2. A NAND gate has:
Options
A. LOW inputs and a LOW output
B. HIGH inputs and a HIGH output
C. LOW inputs and a HIGH output
D. None of the these
Show Answer
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Discuss
Correct Answer: LOW inputs and a HIGH output
3. How many truth table entries are necessary for a four-input circuit?
Options
A. 4
B. 8
C. 12
D. 16
Show Answer
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Discuss
Correct Answer: 16
4. How many NAND circuits are contained in a 7400 NAND IC?
Options
A. 1
B. 2
C. 4
D. 8
Show Answer
Scratch Pad
Discuss
Correct Answer: 4
5. If a signal passing through a gate is inhibited by sending a low into one of the inputs, and the output is HIGH, the gate is a(n):
Options
A. AND
B. NAND
C. NOR
D. OR
Show Answer
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Discuss
Correct Answer: NAND
6. A single transistor can be used to build which of the following digital logic gates?
Options
A. AND gates
B. OR gates
C. NOT gates
D. NAND gates
Show Answer
Scratch Pad
Discuss
Correct Answer: NOT gates
7. The logic gate that will have HIGH or "1" at its output when any one of its inputs is HIGH is a(n):
Options
A. OR gate
B. AND gate
C. NOR gate
D. NOT gate
Show Answer
Scratch Pad
Discuss
Correct Answer: OR gate
8. What input values will cause an AND logic gate to produce a HIGH output?
Options
A. At least one input is HIGH.
B. At least one input is LOW.
C. All inputs are HIGH.
D. All inputs are LOW.
Show Answer
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Discuss
Correct Answer: All inputs are HIGH.
9. The output will be a LOW for any case when one or more inputs are zero in a(n):
Options
A. OR gate
B. NOT gate
C. AND gate
D. NAND gate
Show Answer
Scratch Pad
Discuss
Correct Answer: AND gate
10. CMOS logic is probably the best all-around circuitry because of its:
Options
A. packing density
B. low power consumption
C. very high noise immunity
D. low power consumption and very high noise immunity
Show Answer
Scratch Pad
Discuss
Correct Answer: low power consumption and very high noise immunity
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