Describing Logic Circuits - General Questions (2)

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Describing Logic Circuits - General Questions

9. 

The logic gate that will have HIGH or "1" at its output when any one of its inputs is HIGH is a(n):
A. NOR gate
B. OR gate
C. AND gate
D. NOT operation

Answer: Option B

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10. 

Which of the following is a form of DeMorgan's theorem?
A. mca3_1017a1
B. mca3_1017b1
C. mca3_1017c1
D. mca3_1017d1

Answer: Option C

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11. 

Which of the figures given below represents an OR gate?

mcq3_1009_2
A. a
B. b
C. c
D. d

Answer: Option A

Explanation:

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12. 

A NAND gate has:
A. active-LOW inputs and an active-HIGH output.
B. active-LOW inputs and an active-LOW output.
C. active-HIGH inputs and an active-HIGH output.
D. active-HIGH inputs and an active-LOW output.

Answer: Option D

Explanation:

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13. 

A NOR gate with one HIGH input and one LOW input:
A. will output a HIGH
B. functions as an AND
C. will not function
D. will output a LOW

Answer: Option D

Explanation:

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14. 

Which timing diagram shown below is correct for an inverter?

mcq3_1006_3
A. a
B. b
C. c
D. d

Answer: Option B

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15. 

Which of the figures given below represents a NAND gate?

mcq3_1011_2
A. a
B. b
C. c
D. d

Answer: Option A

Explanation:

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16. 

For a 3-input NAND gate, with the input waveforms as shown below, which output waveform is correct?

mcq3_1012_1
A. a
B. b
C. c
D. d

Answer: Option C

Explanation:

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