Question

A circuit of logic gates given below, some input signal A, B, C are given with their output signal x, y and z is given in respective option, choose correct options :

• A. If $A=1,B=1,C=1$ then $x=0,y=1,z=1$
• B. If $A=0,B=0$ and $C=1$ then $x=1,y=0,z=1$
• C. If $A=0,B=0$ and $C=1$ then $x=1,y=0,z=0$
• D. If OR gate is replaced by NOR gate then net output signal of the circuit becomes $z=0$ for the input $A=0,B=0$ and $C=1$.

Answer 1

Answer: (A), (B), (D)

The correct options are
A If $A=1,B=1,C=1$ then $x=0,y=1,z=1$
B If $A=0,B=0$ and $C=1$ then $x=1,y=0,z=1$
D If OR gate is replaced by NOR gate then net output signal of the circuit becomes $z=0$ for the input $A=0,B=0$ and $C=1$.

From the figure we get options A, B, and D as correct.