Classical

Digital Logic - Sequential Circuits

16:   With the use of an electronic counter six capsules are to be filled in bottles automatically. In such a counter what will be the number of flip-flops required ?
A. 3
B. 12
C. 6
D. 8
 
 

Option: C

Explanation :

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17:   A pulse train can be delayed by a finite number of clock periods using
A. A serial-in serial-out shift register
B. A serial-in parallel-out shift register
C. Both (a) and (b)
D. A parallel-in parallel-out shift register
 
 

Option: D

Explanation :

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18:   How many illegitimate states has synchronous mod-6 counter ?
A. 3
B. 2
C. 1
D. 6
 
 

Option: A

Explanation :

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saijyothsna said: (5:36am on Sunday 5th November 2017)
we are illegitimate 3 states

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19:   A 2 bit binary multiplier can be implemented using
A. 2 input ANDs only
B. 2 input XORs and 4 input AND gates only
C. 2 input NORs and one XNOR gate
D. NOR gates and shift registers
 
 

Option: B

Explanation :

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20:   A ring counter is same as
A. up-down counter
B. parallel-counter
C. shift register
D. Ripple carry Counter
 
 

Option: C

Explanation :

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