Exercise: Digital Electronics

Questions for: Digital Electronics

Which of the following statements defines a full adder?
A:
It adds two binary digits and produces their SUM and CARRY
B:
It adds three inputs (two binary digits and a carry) and produces their SUM and CARRY
C:
It has two inputs and two outputs
D:
None of the above
Answer: B
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A 555 timer can be used as
A:
an astable multivibrator
B:
monostable multivibrator
C:
frequency Divider only
D:
any of the above
Answer: D
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Which of the following is decimal equivalent of the binary 1111111?
A:
27
B:
87
C:
127
D:
167
Answer: C
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In flip flops the duration of clock pulse is about
A:
3 ns
B:
10 ns
C:
25 ns
D:
50 ns
Answer: A
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D FF can be used as a
A:
differentiator
B:
divider circuit
C:
delay switch
D:
none
Answer: C
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