Classical

Digital Logic - Combinational Circuits

31:  

What is the minimum number of 2 input NAND gates required to implement the function
F = (x'+y') (z+w)

A.

6

B.

5

C.

4

D.

3

 
 

Option: C

Explanation :

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barani said: (10:10am on Friday 1st June 2018)
As it is 2 input NAND gates 3 gates are sufficient to design

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32:   How many truth tables can be made from one function table ?
A. One
B. Two
C. Three
D. Any numbers
 
 

Option: B

Explanation :

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33:   A comparison between serial and parallel adder reveals that serial order
A. is slower
B. is faster
C. operates at the same speed as parallel adder
D. is more complicated
 
 

Option: A

Explanation :

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34:   What is the largest number of data inputs which a data selector with two control inputs can have ?
A. 2
B. 4
C. 8
D. 16
 
 

Option: B

Explanation :

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35:   If a logic gates has four inputs, then total number of possible input combinations is
A. 4
B. 8
C. 16
D. 32
 
 

Option: C

Explanation :

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adnan ahmed said: (5:18pm on Thursday 18th April 2013)
how?

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