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 :


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

Option: B

Explanation :


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 :


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 :


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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