Exercise: Digital Electronics

Questions for: Digital Electronics

T- FF used as a
A:
transfer Data switch
B:
toggle switch
C:
time delay switch
D:
none
Answer: B
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A full adder is to be implemented using half adders and OR gates. A 4 bit parallel adder without any initial carry requires
A:
8 half adders and 4 OR gates
B:
8 half adders and 3 OR gates
C:
7 half adders and 3 OR gates
D:
7 half adders and 4 OR gates
Answer: C
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What is the maximum output voltage from the 741 op-amp?
A:
Zero
B:
Approximately 1 V
C:
Approximately 3 V
D:
Approximately 5 V
Answer: D
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Is Schottky TTL, Schottky diode is used primary to
A:
prevent saturation of the transistor
B:
saturate the transistor
C:
act as a switch
D:
act as a controlling switch
Answer: A
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The logic circuit of the given figure realizes the function
A:
(A + B + C)(D)(E)
B:
(A + B + C) (D)(E)
C:
(A + B = C) (D)(E)
D:
(A + B + C)(D)(E)
Answer: A
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