This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates – Quiz 25 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 25 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The book of George Boole was an effort to represent logic and reasoning as mathematical operations. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 2. Simplification of the Boolean expression (A + B)'(C + D + E)' + (A + B)' yields which of the following results? A) A + B. B) A'B'. C) C + D + E. D) C'D'E'. Show Answer Correct Answer: B) A'B'. 3. An inverter gates can be developed using A) Two diodes. B) A resistance and capacitance. C) A transistor. D) An inductance and capacitor. Show Answer Correct Answer: C) A transistor. 4. X . ( Y . Z )is the same as A) X . Y + Z. B) ( X + Y ) + Z. C) ( X . Y ) . Z. D) ( X . Z ) + Y. Show Answer Correct Answer: C) ( X . Y ) . Z. 5. A * (B + C) = A* B + A * C A) Commutative Property. B) Associative Property. C) Distributive Property. D) No one's property. Show Answer Correct Answer: C) Distributive Property. 6. In Boolean Algebra A + A + A + A =? A) A. B) 4A. C) 2A. D) None. Show Answer Correct Answer: A) A. 7. X+x'=? Is equal to A) 1. B) 0. C) X. D) X'. Show Answer Correct Answer: A) 1. 8. What kind of 'base' system is binary known as? A) Base 16. B) Base 10. C) Base 2. D) None of the above. Show Answer Correct Answer: C) Base 2. 9. What does the distributive law in Boolean algebra state? A) A(B + C) = AB + AC. B) A + A = 0. C) A + AB = B. D) A + A = 1. Show Answer Correct Answer: A) A(B + C) = AB + AC. 10. What is a truth table and how is it used in Boolean logic? A) A truth table is a method for solving equations in algebra. B) A truth table is a graphical representation of data flow in circuits. C) A truth table is a tool that shows all possible values of logical expressions and their outputs in Boolean logic. D) A truth table is a list of all possible programming languages. Show Answer Correct Answer: C) A truth table is a tool that shows all possible values of logical expressions and their outputs in Boolean logic. 11. (A + B')' is also equals to A) AB. B) A'B. C) A B'. D) None. Show Answer Correct Answer: B) A'B. 12. A unit which addes together two inputs A) Half Adder. B) Full Adder. C) All the above. D) None of the above. Show Answer Correct Answer: A) Half Adder. 13. 1 XOR 1 A) 0. B) 1. C) All the above. D) None of the above. Show Answer Correct Answer: A) 0. 14. The Boolean expression A + AB simplifies to: A) A + B. B) AB. C) A. D) B. Show Answer Correct Answer: C) A. 15. If A = True and B = False, what is the result of A OR B? A) True. B) False. C) Undefined. D) 0. Show Answer Correct Answer: A) True. 16. What are the three boolean operations in Boolean Algebra? A) NOT, AND and XOR. B) NOT, AND and OR. C) ADDITION, SUBTRACTION AND MULTIPLICATION. D) X, Y AND Z. Show Answer Correct Answer: B) NOT, AND and OR. 17. Which Boolean operation is equivalent to adding two binary digits? A) AND. B) OR. C) XOR. D) NOT. Show Answer Correct Answer: C) XOR. 18. A Half Subtractor has how many outputs? A) 1. B) 3. C) 2. D) 4. Show Answer Correct Answer: C) 2. 19. Select the true function of Karnaugh Map (K-Map):i. Solve difficult expressionii. Simplified Boolean expressioniii. Develop truth table of combinational circuitiv. Differentiate SOP and POS A) I, ii, iii, iv. B) I, ii, iii. C) I, ii, iv. D) Ii, iii, iv. Show Answer Correct Answer: B) I, ii, iii. 20. A data type that represents true or false. (1 mark) A) Boolean. B) Character. C) Integer. D) Float. E) String. Show Answer Correct Answer: A) Boolean. 21. If an input A is given to an inverter gate i.e. NOT gate, the output will be: A) 1/A. B) 1. C) A. D) A'. Show Answer Correct Answer: D) A'. 22. How many rows will a truth table with 2 inputs have A) 2. B) 4. C) 8. D) 16. Show Answer Correct Answer: B) 4. 23. The maxterm designator of the term, A'+B'+C+C' A) 2. B) 13. C) 15. D) None. Show Answer Correct Answer: B) 13. 24. Which of the following gates is universal? A) OR. B) NAND. C) XOR. D) NOT. Show Answer Correct Answer: B) NAND. 25. A . ( B + C )is the same as A) A + B + C. B) ( A + B ) ( A + C). C) A . B . C. D) ( A . B ) + ( A . C ). Show Answer Correct Answer: D) ( A . B ) + ( A . 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