Electronics and Communication Engineering - Digital Electronics

1. 

Monostable multivibrator is called one-shot or single-shot circuit because it

A. can be used once
B. can be used single and not with other circuits.
C. always returns by itself to its single stable state
D. changes to quasistable for a fixed period of time upon receipt of triggering signal.

Answer: Option C

Explanation:

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2. 

10's complement of 1610 is

A. 8310
B. 8410
C. 3810
D. 4810

Answer: Option B

Explanation:

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3. 

The hexadecimal number 64 AC is equivalent to decimal number

A. 25727
B. 25722
C. 25772
D. 25777

Answer: Option C

Explanation:

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4. 

A binary with a digits, all of which are unity has the value

A. n2 - 1
B. 2n
C. 2(n - 1)
D. 2n - 1

Answer: Option D

Explanation:

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5. 

In a NAND SR latch S = R = 1. Then

A. Q = 1, Q = 0
B. Q = 0, Q = 1
C. both Q and Q will be same as before
D. the latch will be set

Answer: Option C

Explanation:

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