This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which Boolean operation results in 1 only if both inputs are 0 or both are 1? A) XNOR. B) XOR. C) AND. D) NAND. Show Answer Correct Answer: A) XNOR. 2. Which gate "reverses" any numbers that pass through it? A) AND. B) OR. C) NOT. D) None of the above. Show Answer Correct Answer: C) NOT. 3. The logic gate that provides high output for same input for all variables in a 2 variable truth table is ..... gate A) NOT. B) AND. C) OR. D) XNOR. Show Answer Correct Answer: D) XNOR. 4. What fundamental operations does Boolean Algebra include? A) Addition, Subtraction, Multiplication. B) NOT, AND, OR. C) XOR, XNOR, NOR. D) Division, Modulation, Integration. Show Answer Correct Answer: B) NOT, AND, OR. 5. In the truth table of a NOT gate, what is the output when the input is 0? A) 1. B) 0. C) Undefined. D) Both 0 and 1. Show Answer Correct Answer: A) 1. 6. BOOLEAN ALGEBRA CAN BE USED ..... A) FOR DESIGNING OF THE DIGITAL COMPUTERS. B) IN BUILDING LOGIC SYMBOLS. C) CIRCUIT THEORY. D) BUILDING ALGEBRAIC FUNCTIONS. Show Answer Correct Answer: A) FOR DESIGNING OF THE DIGITAL COMPUTERS. 7. Boolean algebra can be used to A) Simplify any algebraic expression. B) Minimize number of switches in a circuit. C) Solve the mathematical problem. D) Perform arithmetic calculation. Show Answer Correct Answer: A) Simplify any algebraic expression. 8. (5 > 4) XOR (4 < 9) A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 9. Give the dual of A+1=1 A) A.0=0. B) A+0=A. C) A.1=A. D) A.A=A. Show Answer Correct Answer: C) A.1=A. 10. According to the Boolean laws:A+0=? A) 1. B) A. C) 0. D) $\overline{A}$. Show Answer Correct Answer: B) A. 11. NOT Gate:If A is On, B would light up? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 12. Which of the following logic gates outputs True only when both inputs are True? A) OR. B) AND. C) NOT. D) XOR. Show Answer Correct Answer: B) AND. 13. According to the associative law of addition, A) A + B = B + A. B) A = A + A. C) (A + B) + C = A + (B + C ). D) A + 0 = A. Show Answer Correct Answer: C) (A + B) + C = A + (B + C ). 14. A(B + C) = A) AB + AC. B) AC + AC. C) C + B. D) AB + C. Show Answer Correct Answer: A) AB + AC. 15. Which law of Boolean algebra emphasizes the elimination of brackets from logical expression along with the re-arrangement of grouping variables? A) Distributive Law. B) Commutative Law. C) Associative Law. D) None. Show Answer Correct Answer: C) Associative Law. 16. In Binary Coded Decimal (BCD), decimal 9 is represented as: A) 1001. B) 1001. C) 1010. D) 1100. Show Answer Correct Answer: A) 1001. 17. Classify the expression (A + B)' according to DeMorgan's theorem. A) A' + B'. B) A'B'. C) AB. D) A + B. Show Answer Correct Answer: B) A'B'. 18. The Boolean expression Y = (AB)' is logically equivalent to what single gate? A) NAND. B) NOR. C) AND. D) OR. Show Answer Correct Answer: A) NAND. 19. In an AND statement both sides need to be TRUE to produce an output of TRUE. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 20. Who was the mathematician that developed Boolean algebra? A) George Boole. B) Fredrick Boole. C) Charles Babbage. D) Augustus De Morgan. Show Answer Correct Answer: A) George Boole. 21. What is a Boolean function? A) A function that outputs a string based on integer inputs. B) A function that only accepts numeric inputs. C) A function that maps binary inputs to a binary output. D) A function that maps binary inputs to decimal outputs. Show Answer Correct Answer: C) A function that maps binary inputs to a binary output. 22. One reason computers use binary is because it prevents confusion and crossed signals. Another reason is a branch of math already existed, called ..... A) Matrix Algebra. B) Boolean Algebra. C) Crustacean Algebra. D) Linear Algebra. Show Answer Correct Answer: B) Boolean Algebra. 23. Maxterms are also called A) Standard sum. B) Standard product. C) Standard division. D) Standard subtraction. Show Answer Correct Answer: A) Standard sum. 24. Which gate outputs 1 if at least one input is 1? A) AND gate. B) OR gate. C) NOR gate. D) NAND gate. Show Answer Correct Answer: B) OR gate. 25. What is described as a table that shows the output of a logic gate for all possible combinations of input? A) Truth table. B) Trace table. C) Boolean table. D) Logic table. Show Answer Correct Answer: A) Truth table. ← 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 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 10Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books