Computer Science Class 9 Chapter 6 MCQs With 3 Tests 9th Class Computer Science Chapter 6 Boolean Algebra MCQs TEST 1: 1 Computer Science Chapter 6 – Boolean Algebra Test 1 1 / 20 Boolean algebra was formulated by English Mathematician George Boole in? 1857 1853 1854 1847 2 / 20 If Z is a Boolean variable then its value can be? 0 – 9 0 – 7 0 1 0 or 1\ 3 / 20 Which of the following are basic logical operators in Boolean algebra? AND OR NOT All 4 / 20 The operator that gives complement of the given value is called? AND OR NOT All 5 / 20 If A = 1 and B = 0 then A And B = ? 0 10 11 1 6 / 20 Boolean Algebra is the __ of logic? Mathematics Solution Algebra Geometry 7 / 20 ..... uses symbols to represent logical statements instead of words? Algebra Geometry Boolean Algebra Digital data 8 / 20 If A = 1,B = 0 then A and B = ? 0 10 11 1 9 / 20 If A =1, B=1, C=O then A+B+C = ? 0 10 01 1 10 / 20 If A = 1 ,B =0, C = 1 then X = A + B + C ? 0 101 1 10 11 / 20 A + B = B + A and A . B = B. A represents which of the following? Existence of identity Commutative law Associative law Idempotent law 12 / 20 Boolean Algebra was formulated by the ? Charles Babbage Napir Pascal George Boole 13 / 20 According to distributive law A . (B + C ) = ? A+(B . C) (A+B) . (A+C) A . B + A . C (A+B) + C 14 / 20 According to Existence of identity element A . 1 ? 1A 0 A 1 15 / 20 As per Existence of inverse A + A Z ? 0 2A 0 1 16 / 20 Computer chips are made up of ? Transmitters Transistors Circuits None 17 / 20 According to inverse the output will be 0 if ? A + A A . A 1 + A 0 + A 18 / 20 Boolean Algebra consists of In Boolean Algebra each variable at one time can take how many values? Variable Constant Both None 19 / 20 AND operator represent ? . * / “” 20 / 20 In Boolean algebra each variable at a time can take how many values? 1 2 3 4 Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz 9th Class Computer Science Chapter 6 Boolean Algebra MCQs TEST 2: 0 Computer Science Chapter 6 – Boolean Algebra Test 2 1 / 14 Which is called an unary operator? NOT AND OR All 2 / 14 All electronic devices consist of circuits of? Buttons Cables Elements Switches 3 / 14 A switch at any given time is in one of the states? 2 4 1 5 4 / 14 Which operator is used for logical multiplication? OR AND NOT All 5 / 14 Which of the following operations are used by the Boolean Algebra? Boolean Addition Boolean Multiplication Complement All 6 / 14 Logical addition refers to operation of ? OR gate AND gate NOT gate Inverter gate 7 / 14 A serial circuit is represented by ? – operator . operator + operator All 8 / 14 Boolean Algebra derives its name form the British mathematician? Napir Charles Babbage George Boole Bill Gates 9 / 14 A Boolean variable can only have one of the two values? 3,1 2,0 0,1 0,0 10 / 14 An OR gate has at least inputs ? 2 3 4 1 11 / 14 An AND gate has at least inputs ? 2 3 4 1 12 / 14 A parallel circuit is represented by ? . operator – operator + operation All 13 / 14 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? High Low Equal None 14 / 14 The output of the NOT gate is always the ......of the original value? Same Reverse Both a b None Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz 9th Class Computer Science Chapter 6 Boolean Algebra MCQs TEST 3: 0 Computer Science Chapter 6 – Boolean Algebra Test 3 1 / 15 Which of the following is a proposition? What is your Name? Who is your father? Are you male? None of these 2 / 15 In the representation of Boolean function, the A bar is assigned the value? 0 1 A Aa 3 / 15 The table that represents the output of a Boolean expression for all possible combination of input is called? True Table Truth Table Test Table Boolean Table 4 / 15 Which of the following logical operator is denoted by + sign ? AND OR NOT None 5 / 15 Boolean Algebra deals with ? Octal digits Hexadecimal digits Decimal digits Binary digits 6 / 15 Truth table show all possible combinations of ? Inputs Outputs Both a b None 7 / 15 Boolean operators and Boolean variables combine to form Boolean ? Outputs Expression Both a b None 8 / 15 Who did overcome the disadvantages of Boolean algebra laws for simplification of expression? Pascal Charles Babbage Maurice Karnaugh George Boole 9 / 15 Which is Boolean constant ? 0 1 0 1 – 1 10 / 15 X, Y are called ? Boolean constant Variables Numbers None 11 / 15 we can use it to change the order of evaluation of operations in a Boolean expression? Bars Parentheses Square brackets Braces 12 / 15 A truth table of a two variable expression will always have? 20 2 1 22 23 13 / 15 f ( x, y ) = x + y is a ? Boolean variable Boolean Expression Boolean Function Boolean Algebra 14 / 15 Standard product is known as? Boolean function Maxterms Minterms Literals 15 / 15 Standard sum is known as? Boolean function Maxterms Minterms K-map Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz