The figure given below shows the circuit of which one of the following is

1.  Bi-stable multi-vibrator

2.  Schmitt trigger

3.  Mono-stable multi-vibrator

4.  A stable multi-vibrator.

View Answer  
4
Correct Answer :

Mono-stable multi-vibrator


Explanation :
No Explanation available for this question

A full-adder can be implemented with half-adders and OR gates. A 4-bit parallel full adder without any initial carry requires

1.  8 half-adders, 4-0R gates

2.   8 half-adders, 3-0R gates

3.  7 half-adders, 4-0R gates

4.  7 half-adders, 3-0R gates.

View Answer  
4
Correct Answer :

7 half-adders, 3-0R gates.


Explanation :
No Explanation available for this question

A four-variable switching function has min terms m6 and m9. If literals in these min terms are complemented, then corresponding min term numbers are

1.  m3 and m0

2.  m9 and m6

3.  m2 and m0

4.  m6 and m9.

View Answer  
4
Correct Answer :

m3 and m0


Explanation :
No Explanation available for this question

For the gate network shown in the figure below which of the following gate is redundant

1.  Gate no-1

2.  Gate no-2

3.  Gate no-3

4.  Gate no-4.

View Answer  
4
Correct Answer :

Gate no-2


Explanation :
No Explanation available for this question

In the logic circuit shown in the figure, output X is

1.  

2.  A+B+C

3.  AB+BC+CA

4.  

View Answer  
4
Correct Answer :

AB+BC+CA


Explanation :
No Explanation available for this question

Consider the following expressions 1. Y=f(A, B, C, D)=∑(1,2,4,7,8,11,13,17) 2. Y=f(A, B, C, D)=∑(3,5,7,10,11,12,13,15) 3. Y=f(A, B, C, D)=∏(0,3,5,6,9,10,12,15) 4. Y=f(A, B, C, D)=∏(0,1,2,4,5,8,9,15) Which of the following expressions are equivalent to the expression

1.  2 and 3

2.  1 and 4

3.  2 and 4

4.  1 and 3

View Answer  
4
Correct Answer :

1 and 3


Explanation :
No Explanation available for this question

For the circuit shown in figure

1.  F=A+B

2.  F=AB

3.  

4.  

View Answer  
4
Correct Answer :

F=A+B


Explanation :
No Explanation available for this question

For the circuit shown in the figure, output F=0 when

1.  Both f2 and f3 are 1

2.  Both f2 and f3 are 0

3.   f2 is 1 and f3 zero

4.   f2 is 1 and f3 is 1

View Answer  
4
Correct Answer :

Both f2 and f3 are 1


Explanation :
No Explanation available for this question

A three input AND gate is shown in the figure. If circuit works off the positive voltage made logic with logic levels 1=+5v and 0=0v, then binary state of output will be

1.  F=1

2.  F=0.

3.  F=100

4.  F=011

View Answer  
4
Correct Answer :

F=0.


Explanation :
No Explanation available for this question

Venn diagram representing the Boolean expression A+(A.B) is

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question
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