# Which of the following is the truth table of the given logic is true

1.   X Y Z 0 0 0 0 0 1 0 1 1 1 1 1

2.   X Y Z 0 0 0 0 0 1 0 1 0 1 1 1

3.   X Y Z 0 0 0 0 0 1 0 1 1 0 0 0

4.   X Y Z 0 0 0 0 0 1 0 1 0 1 1 0

4
 X Y Z 0 0 0 0 0 1 0 1 1 1 1 1

Explanation :
No Explanation available for this question

# For a binary half-sub tractor having two inputs A and B, correct set of logical expression for the outputs D(=A minimum B) and x(=borrow) are

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# The circuit shown in the figure is /an

2.  Sub tractor

3.  Parity generator

4.  Comparator.

4

Comparator.

Explanation :
No Explanation available for this question

# In certain application four inputs A, B, C, D are fed to logic circuit, producing an output which operates a relay. The relay turns on when f(A, B, C, D)=1 for the following states of the inputs (ABCD):0000, 0010, 0101, 0110, 1101 and 1110. States 1000 and 1001 do not occur, and for the remaining states the relay is off. The minimized Boolean expression f is

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# The minimum number of NAND gates required to implement is equal to

1.  Zero

2.  1

3.  4

4.  7.

4

Zero

Explanation :
No Explanation available for this question

# For the logic shown in the figure below, the output y is equal to

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# Output of the circuit shown in the figure is equal to

1.  0

2.  1

3.

4.

4

0

Explanation :
No Explanation available for this question

1.  Is faster

2.  Is more accurate

3.  Uses fewer gates

4.  Costs less.

4

Is faster

Explanation :
No Explanation available for this question

# In the given network of AND and OR gates, f can be written as

1.  x0 x1 x2……xn+x1 x2...... xn + x2 x3 …….. xn …… xn

2.  x0 x1 + x2 x3 +…….. + xn-1. xn

3.  x0 +x1 + x2 +……+ xn

4.  x0 x1 x3……xn-1 + x2 x3 x5..... xn-1 + …….. + xn-2 xn-1 + xn

4

x0 x1 x3……xn-1 + x2 x3 x5..... xn-1 + …….. + xn-2 xn-1 + xn

Explanation :
No Explanation available for this question

1.  (A+B)C+DE

2.  AB+C(D+E)

3.  (A+B)C+D+E

4.  (AB+C)DE.

4