## 9th Class Computer Science Chapter 6 Boolean Algebra MCQs TEST 1:

Computer Science Chapter 6 – Boolean Algebra Test 1

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**Boolean algebra was formulated by English Mathematician George Boole in?**

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**If Z is a Boolean variable then its value can be?**

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**Which of the following are basic logical operators in Boolean algebra?**

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**The operator that gives complement of the given value is called?**

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**If A = 1 and B = 0 then A And B = ?**

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**Boolean Algebra is the __ of logic?**

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**..... uses symbols to represent logical statements instead of words?**

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**If A = 1,B = 0 then A and B = ?**

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**If A =1, B=1, C=O then A+B+C = ?**

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**If A = 1 ,B =0, C = 1 then X = A + B + C ?**

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**A + B = B + A and A . B = B. A represents which of the following?**

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**Boolean Algebra was formulated by the ?**

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**According to distributive law A . (B + C ) = ?**

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**According to Existence of identity element A . 1 ?**

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**As per Existence of inverse A + A Z ?**

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**Computer chips are made up of ?**

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**According to inverse the output will be 0 if ?**

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**Boolean Algebra consists of In Boolean Algebra each variable at one time can take how many values?**

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**AND operator represent ?**

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**In Boolean algebra each variable at a time can take how many values?**

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## 9th Class Computer Science Chapter 6 Boolean Algebra MCQs TEST 2:

Computer Science Chapter 6 – Boolean Algebra Test 2

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**Which is called an unary operator?**

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**All electronic devices consist of circuits of?**

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**A switch at any given time is in one of the states?**

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**Which operator is used for logical multiplication?**

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**Which of the following operations are used by the Boolean Algebra?**

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**Logical addition refers to operation of ?**

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**A serial circuit is represented by ?**

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**Boolean Algebra derives its name form the British mathematician?**

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** A Boolean variable can only have one of the two values?**

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**An OR gate has at least inputs ?**

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**An AND gate has at least inputs ?**

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**A parallel circuit is represented by ?**

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**Two valued Boolean Algebra is a set that has elements and operations**

**In order to get high output in AND gate all the input must be?**

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**The output of the NOT gate is always the ......of the original value?**

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## 9th Class Computer Science Chapter 6 Boolean Algebra MCQs TEST 3:

Computer Science Chapter 6 – Boolean Algebra Test 3

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**Which of the following is a proposition?**

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**In the representation of Boolean function, the A bar is assigned the value?**

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**The table that represents the output of a Boolean expression for all possible combination of input is called?**

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**Which of the following logical operator is denoted by + sign ?**

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**Boolean Algebra deals with ?**

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**Truth table show all possible combinations of ?**

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**Boolean operators and Boolean variables combine to form Boolean ?**

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**Who did overcome the disadvantages of Boolean algebra laws for simplification of expression?**

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**Which is Boolean constant ?**

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** X, Y are called ?**

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**we can use it to change the order of evaluation of operations in a Boolean expression?**

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**A truth table of a two variable expression will always have?**

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** f ( x, y ) = x + y is a ?**

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**Standard product is known as?**

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**Standard sum is known as?**

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