# Combinational Logic Analysis - General Questions Online Exam Quiz

Combinational Logic Analysis - General Questions GK Quiz. Question and Answers related to Combinational Logic Analysis - General Questions. MCQ (Multiple Choice Questions with answers about Combinational Logic Analysis - General Questions

### The output of an exclusive-NOR gate is 1. Which input combination is correct?

**Options**

A : A = 1, B = 0

B : A = 0, B = 1

C : A = 0, B = 0

D : none of the above

### The 8-input XOR circuit shown has an output of Y = 1. Which input combination below (ordered A – H) is correct?

**Options**

A : 10111100

B : 10111000

C : 11100111

D : 00011101

### Before an SOP implementation, the expression would require a total of how many gates?

**Options**

A : 1

B : 2

C : 4

D : 5

### To implement the expression , it takes one OR gate and ________.

**Options**

A : three AND gates and three inverters

B : three AND gates and four inverters

C : three AND gates

D : one AND gate

### One positive pulse with t w = 75 µs is applied to one of the inputs of an exclusive-OR circuit. A second positive pulse with t w = 15 µs is applied to the other input beginning 20 µs after the leading edge of the first pulse. Which statement describes the output in relation to the inputs?

**Options**

A : The exclusive-OR output is a 20 s pulse followed by a 40 s pulse, with a separation of 15 s between the pulses.

B : The exclusive-OR output is a 20 s pulse followed by a 15 s pulse, with a separation of 40 s between the pulses.

C : The exclusive-OR output is a 15 s pulse followed by a 40 s pulse.

D : *The exclusive-OR output is a 20 s pulse followed by a 15 s pulse, followed by a 40 s pulse.

### How many AND gates are required to implement the Boolean expression, ?

**Options**

A : 1

B : 2

C : 3

D : 4

### How many NOT gates are required to implement the Boolean expression, ?

**Options**

A : 1

B : 2

C : 4

D : 5

### The inverter can be produced with how many NAND gates?

**Options**

A : 1

B : 2

C : 3

D : 4

### A 4-variable AND-OR circuit produces a 0 at its Y output. Which combination of inputs is correct?

**Options**

A : A = 0, B = 0, C = 1, D = 1

B : A = 1, B = 1, C = 0, D = 0

C : A = 1, B = 1, C = 1, D = 1

D : A = 1, B = 0, C = 1, D = 0

### A 4-variable AND-OR circuit produces a 1 at its Y output. Which combination of inputs is correct?

**Options**

A : A = 0, B = 0, C = 0, D = 0

B : A = 0, B = 1, C = 1, D = 0

C : A = 1, B = 1, C = 0, D = 0

D : A = 1, B = 0, C = 0, D = 0

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