Classical

Digital Logic - Sequential Circuits

31:   The astable multivibrator has
A. Two quasi stable states
B. Two stable states
C. One stable and one quasi-stable state
D. None of these
 
 

Option: A

Explanation :

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32:   How many bits are required to encode all twenty six letters, ten symbols, and ten numerals ?
A. 5
B. 6
C. 10
D. 48
 
 

Option: B

Explanation :

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33:   The functional difference between S-R flip-flop and J-K flip-flop is that J-K flip-flop
A. is faster than S-R flip-flop
B. Has a feed-back path
C. Accepts both inputs 1
D. Both (a) and (b)
 
 

Option: C

Explanation :

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34:   In a positive edge triggered JK flip-flop, a low J and low K produces
A. No change
B. Low state
C. High state
D. None of these
 
 

Option: A

Explanation :

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35:  

When an inverter is placed between both inputs of an SR flip-flop, then resulting flip-lop is

A.

JK flip-flop

B.

D flip-flop

C.

SR flip-flop

D.

Master slave JK flip-flop

 
 

Option: B

Explanation :

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