Phrases Boolean algebra Previous Year Question Paper and Solution with PDF

Aspire's Library

A Place for Latest Exam wise Questions, Videos, Previous Year Papers,
Study Stuff for MCA Examinations

Phrases
Previous Year Questions

Phrases
Previous Year Questions
Phrases

Phrases Previous Year Questions (PYQs)

Phrases Boolean Algebra PYQ

Qus : 1 Phrases PYQ

List I		List II
A.	Dog : Rabies :: Mosquito :	I.	Bacteria
B.	Amnesia : Memory :: Paralysis :	II.	Liver
C.	Meningitis : Brain :: Cirrhosis :	III.	Movement
D.	Influenza : Virus :: Typhoid :	IV.	Malaria

1
2
3
4
Go to Discussion

Phrases Previous Year PYQPhrases CUET 2023 PYQ

Solution

Dog causes Rabies, Mosquito causes Malaria → A-IV

Amnesia affects Memory, Paralysis affects Movement → B-III

Meningitis affects Brain, Cirrhosis affects Liver → C-II

Influenza is caused by Virus, Typhoid is caused by Bacteria → D-I

Correct matching: A-IV, B-III, C-II, D-I

Qus : 2 Phrases PYQ

Consider the following Karnaugh Map (K-map). Minimal Function generated by this Karnaugh map is?

1. $Q'S+P'Q$

2. $Q'S'+P'S'$

3. $P'Q''+P'S'+Q'S'$

4. $PQ+Q'S'+P'S'$

1
2
3
4
Go to Discussion

Phrases Previous Year PYQ Phrases CUET 2025 PYQ

Solution

Qus : 3 Phrases PYQ

If $w, x, y, z$ are Boolean variables, then which of the following is incorrect?

1
2
3
4
Go to Discussion

Phrases Previous Year PYQ Phrases CUET 2023 PYQ

Solution

LHS:

$(w+y)(wxy + wyz)

= w(wxy+wyz) + y(wxy+wyz)

= wxy + wyz + wxy + wyz

= wxy + wyz$

So (4) is correct.

Checking option (3):

LHS simplifies to a term containing $y$, but RHS is $x\bar y$.

They are not equal, hence the identity is false.

Qus : 4 Phrases PYQ

What should be the output of the following boolean expression after simplifying it to a minimum number of variables?

a'b'+ab+a'b

1. a+b'

2. a'+b

3. a'+b

4. a+b

1
2
3
4
Go to Discussion

Phrases Previous Year PYQ Phrases CUET 2025 PYQ

Solution

$a'b' + ab + a'b$

$= a'(b' + b) + ab$

$= a' + ab$

$= a' + b$

$\boxed{a' + b \;\; }$

Qus : 5 Phrases PYQ

The simplified form of the Boolean Expression AB+AB' is ______

1
2
3
4
Go to Discussion

Phrases Previous Year PYQ Phrases CUET 2022 PYQ

Solution

Qus : 6 Phrases PYQ

Match List I with List II :

LIST I	LIST II
A. (x+y)'	I. 1
B. x+1	II. x'+y'
C. (xy)'	III. x'.y'
D. x+0	IV. x

Choose the correct answer from the options given below:

1
2
3
4
Go to Discussion

Phrases Previous Year PYQ Phrases CUET 2022 PYQ

Solution

Qus : 7 Phrases PYQ

The number of possible Boolean functions that can be defined for $n$ Boolean variables over $n$-valued Boolean algebra is ______.

1
2
3
4
Go to Discussion

Phrases Previous Year PYQ Phrases CUET 2023 PYQ

Solution

There are $2^n$ input combinations and each can take $n$ values. Total functions $= n^{2^n}$.

Qus : 8 Phrases PYQ

The complement of $ \overline{A + B} $ is

1
2
3
4
Go to Discussion

Phrases Previous Year PYQ Phrases CUET MCA 2026 PYQ

Solution

Qus : 9 Phrases PYQ

The function represented by the k-map given below is

1
2
3
4
Go to Discussion

Phrases Previous Year PYQ Phrases CUET 2024 PYQ

Solution

K-map (3 variables: A rows, BC columns in Gray order 00,01,11,10)

A \ BC	00	01	11	10
A=0	0	0	1	0
A=1	1	0	1	1

Groupings and terms:

Cells (A=1, BC=11) & (A=1, BC=10) → pair → AB
Cells (A=1, BC=00) & (A=1, BC=10) → pair → AC'
Cells (A=0, BC=11) & (A=1, BC=11) → pair → BC

Simplified function: $F = AB \;+\; AC' \;+\; BC$

Correct option: 1) BC + AB + AC'

Qus : 10 Phrases PYQ

Let A’ represent complement of A. Which of the following boolean expressions is/are true?

(A) A +AB=A

(B) (A+B)'= A'B'

(D) (AB)'= A'+B'

Choose the correct answer from the options given below:

1
2
3
4
Go to Discussion

Phrases Previous Year PYQ Phrases CUET 2024 PYQ

Solution

Solution:

(A) $A + AB = A(1 + B) = A \cdot 1 = A$ (Absorption law) ✅

(B) $(A + B)' = A'B'$ (De Morgan’s law: complement of sum is product of complements) ✅

(C) $(A')' = A$ (Double complement law) ✅

(D) $(AB)' = A' + B'$ (De Morgan’s law: complement of product is sum of complements) ✅

Final Answer: All are true — (A), (B), (C), (D).

Qus : 11 Phrases PYQ

The simplified form of Boolean expression:

$\overline{A}BC+ABC$ is

1
2
3
4
Go to Discussion

Phrases Previous Year PYQ Phrases CUET 2022 PYQ

Solution

Phrases

Online Test Series,
Information About Examination,
Syllabus, Notification
and More.

Click Here to
View More

Phrases

Online Test Series,
Information About Examination,
Syllabus, Notification
and More.

Click Here to
View More

Feedback

Info.

Information

Aspire's Library

Phrases Previous Year Questions (PYQs)

Phrases Boolean Algebra PYQ

Solution

Solution

Solution

Solution

Solution

Solution

Solution

Solution

Solution

Solution

Solution

Phrases

Phrases

Game Changer NIMCET Test Series 2026

Info.

Confirm Delete

Edit