This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Define the term 'logic gate' and list its types. A) Types of logic gates include ADD, SUB, MUL, DIV. B) Types of logic gates include AND, OR, NOT, NAND, NOR, XOR, and XNOR. C) Types of logic gates include AND, OR, XOR, XNOR, NOT. D) Types of logic gates include AND, OR, NOT, NAND, NOR, BUF. Show Answer Correct Answer: B) Types of logic gates include AND, OR, NOT, NAND, NOR, XOR, and XNOR. 2. A NOT gate produces what kind of output? A) The inverse of the input. B) The sum of the inputs. C) The product of the inputs. D) A constant 0. Show Answer Correct Answer: A) The inverse of the input. 3. Another way to represent ON or TRUE. (1 mark) A) 1. B) 0. C) All the above. D) None of the above. Show Answer Correct Answer: A) 1. 4. The minterms (0, 3, 4) can be written in expression as A) ABC+AB'C+A'B'C'. B) (A'+B'+C').(A'+B+C).(A+B'+C'). C) (A+B+C).(A'+B+C).(A+B'+C'). D) A'B'C'+A'BC+AB'C'. Show Answer Correct Answer: D) A'B'C'+A'BC+AB'C'. 5. What is invented AND gate called? A) XAND. B) NOR. C) NAND. D) XNAND. Show Answer Correct Answer: C) NAND. 6. What is the minimum number of gates required to implement the Boolean function (AB+C) if we have to use only 2-input NOR gates? A) 2. B) 3. C) 4. D) 5. Show Answer Correct Answer: B) 3. 7. AND Gate:If A is OFF but B is ON, C would light up? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 8. Which single gate could be used to represent the circuit described by? $\overline{A.B}$ A) NAND. B) NOR. C) XNOR. D) NOT. Show Answer Correct Answer: A) NAND. 9. The following equation corresponds to De Morgan's theorem in booloen algebra A) (A+B)(A+B)=A+AB+B. B) (A+B)(A+B)=AA+AB+BB+BA. C) (AB)'=A'+B'. D) None of the above. Show Answer Correct Answer: C) (AB)'=A'+B'. 10. What is the result of the logical OR operation when both inputs are false? A) 0. B) 1. C) True. D) False. Show Answer Correct Answer: A) 0. 11. What is the basic building block of digital electronics? A) Resistor. B) Transistor. C) Microcontroller. D) Logic gate. Show Answer Correct Answer: D) Logic gate. 12. In boolean algebra A+0 = ..... A) A. B) 1. C) 0. D) 2A. Show Answer Correct Answer: A) A. 13. What will the result of this code be?var = True and Falseprint(var) A) True. B) False. C) Var. D) None of these. Show Answer Correct Answer: B) False. 14. The expression (A+B).(B+C) can be written in canonical form as A) (A' + B+C).(A+B+C').(A'+B+C). B) (A + B'+C).(A+B+C').(A'+B+C). C) (A + B+C).(A+B+C').(A'+B+C). D) (A '+ B'+C).(A+B+C').(A'+B+C). Show Answer Correct Answer: C) (A + B+C).(A+B+C').(A'+B+C). 15. In Boolean algebra, how is the NOT operation represented in text format? A) A dot. B) A plus symbol. C) A slash or bar above the section. D) A circle around the symbol. Show Answer Correct Answer: C) A slash or bar above the section. 16. What would the following condition return?100 == 100 A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. How can Boolean algebra be used to simplify logical expressions? A) Boolean algebra is only used for arithmetic calculations. B) Boolean algebra is primarily used for statistical analysis. C) Logical expressions cannot be simplified using any algebraic methods. D) Boolean algebra can be used to simplify logical expressions by applying its laws and theorems. Show Answer Correct Answer: D) Boolean algebra can be used to simplify logical expressions by applying its laws and theorems. 18. Involution Law is also known as A) Complement law. B) Double Inversion Rule. C) Complementary Lw. D) None of the above. Show Answer Correct Answer: B) Double Inversion Rule. 19. A rule in Boolean algebra which permits the removal of brackets from an expression and regrouping of the variables A) Distribution. B) Association. C) Commutation. D) Double Negation. Show Answer Correct Answer: B) Association. 20. Using an OR gate, it one transistor is on and the other is off, the output is ..... A) Off. B) On. C) Indeterminate. D) Negated. Show Answer Correct Answer: B) On. 21. Name the law which states that X(Y+Z)=XY+XZ A) Commutative Law. B) Associative Law. C) Distributive Law. D) Absorption Law. Show Answer Correct Answer: C) Distributive Law. 22. What does the statement:$\left(X+Y\right).\left(X+\overline{Y}\right)$ A) X. B) Y. C) 0. D) 1. Show Answer Correct Answer: A) X. 23. How many number of cells in the 4-variable K-Map? A) 4. B) 8. C) 16. D) 32. Show Answer Correct Answer: C) 16. 24. What is the symbol used for the OR operation? A) +. B) . C) . D) *. Show Answer Correct Answer: A) +. 25. Rule in Boolean Algebra where the order of application of two separate terms is not important. E.G. A AND B = B AND A A) Distribution. B) Association. C) Commutation. D) Double Negation. 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