Classical

Digital Logic - Sequential Circuits

26:   A shift register can be used for
A. Digital delay line
B. Serial to parallel conversion
C. Parallel to serial conversion
D. All of these
 
 

Option: D

Explanation :

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27:   Popular application of flip-flop are
A. Transfer register
B. Shift registers
C. Counters
D. All of these
 
 

Option: D

Explanation :

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28:   For which of the following flip-flops, the output is clearly defined for all combinations of two inputs ?
A. Q type flip-flop
B. R-S flip-lop
C. J-K flip-lop
D. D flip-flop
 
 

Option: C

Explanation :

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29:   When a large number of analog signals are to be converted an analog multiplexer is used. In this case most suitable A.D. converter will be
A. Ripple carry counter type
B. Dual stop type
C. Forward counter type
D. Successive approximation type
 
 

Option: D

Explanation :

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30:   To build a mod-19 counter the number of flip-flops required is
A. 3
B. 5
C. 7
D. 9
 
 

Option: B

Explanation :

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