This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 13 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. According to Distributive law, A(B+C)= A) ABC. B) A+B+C. C) AB+AC. D) A+BC. Show Answer Correct Answer: C) AB+AC. 2. James is deciding whether to go outside. If it is not raining, he will go. In Boolean terms, what does the NOT operation do in this scenario? A) Negates a value. B) Combines two values. C) Checks equality. D) Represents a true statement. Show Answer Correct Answer: A) Negates a value. 3. DEMORGAN'S THEOREM STATES THAT ..... A) (AB)' = A' + B'. B) (A + B)' = A' * B. C) A' + B' = A'B'. D) (AB)' = A' + B. Show Answer Correct Answer: A) (AB)' = A' + B'. 4. Evaluate this Boolean expression:I am in Year 8 AND I am in Year 7 A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 5. A real is ..... A) A whole number. B) A number with a decimal part. C) Letters, numbers or punctuation. D) True or False. Show Answer Correct Answer: B) A number with a decimal part. 6. He BCD code for the decimal number 9 is: A) 1000. B) 1010. C) 1001. D) 1111. Show Answer Correct Answer: C) 1001. 7. A unit which addes two inputs and a carry bit together A) Half Adder. B) Full Adder. C) All the above. D) None of the above. Show Answer Correct Answer: B) Full Adder. 8. Evaluate:die1 = 6die2 = 3score = die1*2+die2score >= 10 A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. True or False:AND gates output a 1 if both inputs are 0 A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 10. AB = A) BA. B) AAB. C) BBA. D) B. Show Answer Correct Answer: A) BA. 11. Current flows through a transistor, between electrodes, when electricity is applied to the ..... A) Logic table. B) Control wire. C) Output pin. D) Reciever gate. Show Answer Correct Answer: B) Control wire. 12. (Not True) OR ( (5 < 4) || (Not True) ) A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 13. Simplify the Boolean function x + (x'y) to a minimum number of literals. A) Xy. B) X'y'. C) X+y. D) 0. Show Answer Correct Answer: C) X+y. 14. The output of two input AND gate is high when A) Both inputs are low. B) Both inputs are high. C) Any one input is high. D) Only one input is high. Show Answer Correct Answer: B) Both inputs are high. 15. In boolean algebra A+1 = ..... A) 0. B) 1. C) A. D) A'. Show Answer Correct Answer: B) 1. 16. A 3-variable K-map consists of: A) 8. B) 5. C) 4. D) 16. Show Answer Correct Answer: A) 8. 17. When is the output for OR gate TRUE? A) When both inputs are TRUE. B) When at least one of the inputs is TRUE. C) When both inputs are FALSE. D) When at least one of the inputs is FALSE. Show Answer Correct Answer: B) When at least one of the inputs is TRUE. 18. What is the role of Karnaugh maps in simplifying Boolean expressions? A) Karnaugh maps are used to complicate Boolean expressions further. B) Karnaugh maps are only used for visual representation and not simplification of Boolean expressions. C) Karnaugh maps have no impact on simplifying Boolean expressions. D) Karnaugh maps help in identifying and eliminating redundant terms in Boolean expressions, leading to a more simplified form. Show Answer Correct Answer: D) Karnaugh maps help in identifying and eliminating redundant terms in Boolean expressions, leading to a more simplified form. 19. Another way to represent OFF or FALSE. (1 mark) A) 0. B) 1. C) All the above. D) None of the above. Show Answer Correct Answer: A) 0. 20. Which is the 1's complement of (01011001) ..... 2? A) 10100111. B) 01011000. C) 10100110. D) 11111111. Show Answer Correct Answer: C) 10100110. 21. What is the symbol for logical addition in Boolean Algebra? A) +. B) *. C) -. D) /. Show Answer Correct Answer: A) +. 22. Lily installs a security system in her house. The system uses a NOT gate to control the alarm. If the sensor input is true (meaning a door is open), what will be the output of the NOT gate to the alarm? A) True. B) False. C) Undefined. D) Both true and false. Show Answer Correct Answer: B) False. 23. Arjun is learning about how computers make decisions using Boolean Algebra. His teacher asks him:Which of the following is NOT a fundamental operation in Boolean Algebra? A) AND. B) OR. C) NOT. D) ADD. Show Answer Correct Answer: D) ADD. 24. In an XOR Gate if the input A is true and the input B is false the output will be ..... A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. The Boolean expression (X + Y).(X + Y') simplifies to A) X. B) Y. C) XY. D) X'Y'. Show Answer Correct Answer: A) X. ← PreviousNext →Related QuizzesClass 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 1Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 2Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 3Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 4Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 5Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 6Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 7Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 8Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 9Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books