# MCQ Class 9 Computer Science Boolean Algebra

Check the below Boolean Algebra Class 9 MCQ for Computer Science with Answers available with PDF free download. MCQ Questions for Class 9 Computer Science with Answers were prepared based on the latest syllabus and examination pattern issued by CBSE, NCERT and KVS. Our teachers have provided below Boolean Algebra Class 9 Computer Science MCQs Questions with answers which will help students to revise and get more marks in exams

## Boolean Algebra Class 9 Computer Science MCQ Questions with Answers

Refer below for Boolean Algebra Class 9 MCQ with solutions. Solve MCQ questions and compare them with the answers provided below

Question. Demorgan‟s law states that
(a).a(b+c)=a.b+a.c
(b).a+(b+c)=(a+b)+c
(c). a b a.b
(d).none of the above

C

Question. A Boolean function with four variables will have——–
(a).8 maxterms
(b). 16 maxterms
(c). 24 maxterms
(d). 32 maxterms

B

Question. A+0 is equal to————————–
(a).A
(b).0
(c).A0
(d).0A

A

Question. 0 is called the ————————–
(a).no identity
(b).multiplication identity
(c). Division identity

D

Question. The complement of addition of two numbers is equal to the product of their complements is the statement of ——law
(a).idempotent law
(b).Demorgan law
(c). absorption law
(d). not a law

B

Question. 0 and 1 are called the —————-
(a).Boolean variable
(b).Boolean expression
(c).Boolean constant
(d).all of the above

C

Question. x+x is equal to
(a).2x
(b).x
(c).x^2
(d).x2

B

Question. ————– is very efficient way of solving Boolean functions.
(a).karnaugh map
(b).Boolean algebra
(c).Boolean variables
(d).Boolean constant

A

Question. The principal of duality states that —-and—–are interchangeable
(a). . and +
(b). – and +
(c). / and +
(d). + and /

A

Question. as the number of variables in Boolean increases, the k-map becomes
(a).more simple
(b).more easy
(c). More complex
(d).much easy

C

Question. x.y is equal to——————
(a). x + y
(b). x.y
(c). x.y
(d). (x+y)(x+y)

A

Question. in Boolean algebra standard product is called——————–
(a).maxterm
(b).product term
(c).minterm
(d). Boolean term

C

Question. commutative law states that a+b is equal to——————-
(a).b+a
(b).b-a
(c).b.a
(d).a.b

A

Question. by distributive law we know that ab+ac is equal to—————-
(a).a(b-c)
(b).a(b+c)
(c).a+(b.c)
(d).a(b/c)

B

Question. in Boolean algebra standard sum is called——————–
(a).maxterm
(b).product term
(c).minterm
(d). Boolean term

A

Question k-map is used to————–
(a).evaluate a Boolean expression
(b).simplify a Boolean expression
(c).both a and b
(d).make truth table

C

Question. the idempotent law states that for two variables x and y
(a).x+x.y=x+y
(b).x^^= x
(c).x.x=x
(d).none of the above

C

Question. the absorption law states that for two variables x and y
(a).x.x=x and y.y=y
(b).x.y^=y^.x
(c).x+x.y=x.y
(d).none of the above

C

Question. Boolean algebra operates on————————
(a).decimal numbers
(b).binary numbers
(c).octal numbers
(d).hexa numbers