This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Computer Science Chapter 6 Boolean Algebra And Logic Gates Quiz 24 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following gates only takes one input? A) AND. B) OR. C) NOT. D) None of the above. Show Answer Correct Answer: C) NOT. 2. Discuss the properties of Boolean algebra. A) Inclusive law. B) Exponential law. C) Inversion law. D) The properties of Boolean algebra include commutative, associative, distributive, identity, and complement laws. Show Answer Correct Answer: D) The properties of Boolean algebra include commutative, associative, distributive, identity, and complement laws. 3. Which of the following gate types below is NOT considered a universal gate?a. XORb. NANDc. NORd. None of the above A) . B) . C) . D) . Show Answer Correct Answer: A) . 4. Explain the concept of a hexadecimal number system. A) The hexadecimal number system is a base-16 system using digits 0-9 and letters A-F. B) The hexadecimal number system is a base-16 system using only digits 0-5. C) Hexadecimal is a base-8 system that uses digits 0-7. D) The hexadecimal system is a base-10 system using digits 0-9. Show Answer Correct Answer: A) The hexadecimal number system is a base-16 system using digits 0-9 and letters A-F. 5. In an AND gate, the inputs are 'A' and 'B' and the output is 'Q'. If A = 0 and B = 1, what is the output, 'Q'? A) 0. B) 1. C) True. D) False. Show Answer Correct Answer: A) 0. 6. AND Gate:If A is OFF but B is ON, the output would be ..... (1 mark) A) ON. B) OFF. C) All the above. D) None of the above. Show Answer Correct Answer: B) OFF. 7. A NAND gate is the combination of which two gates A) OR and AND. B) AND and NOT. C) NOT and OR. D) OR and NAND. Show Answer Correct Answer: B) AND and NOT. 8. What is the output of an AND gate if the inputs are 1 and 0? A) ON. B) 2. C) 1. D) 0. Show Answer Correct Answer: D) 0. 9. OR Gate:IF A is ON and B is ON, the output would be ..... (1 mark) A) ON. B) OFF. C) All the above. D) None of the above. Show Answer Correct Answer: A) ON. 10. According to the distributive law A(B+C)=? A) ABC. B) AB+AC. C) A+B+C. D) A+BC. Show Answer Correct Answer: B) AB+AC. 11. Which of the following is NOT a characteristic of logic expressions? A) They employ logical operators. B) They use only one variable. C) They can represent logic circuits. D) They are based on Boolean algebra. Show Answer Correct Answer: B) They use only one variable. 12. What is a truth table used for? A) To show all possible inputs and outputs of a logic circuit. B) To summarize CPU performance. C) To manage memory addresses. D) To translate between number systems. Show Answer Correct Answer: A) To show all possible inputs and outputs of a logic circuit. 13. How does a JK flip-flop differ from an SR flip-flop? A) It resolves the issue of the SR flip-flop's indeterminate state. B) It cannot store binary data. C) It is only used for multiplication. D) It requires more inputs than an SR flip-flop. Show Answer Correct Answer: A) It resolves the issue of the SR flip-flop's indeterminate state. 14. State the second DeMorgan's Theorem. A) (A + B)' = A' B'. B) (A B)' = A' + B'. C) A + B = A' B'. D) (A B)' = A' B'. Show Answer Correct Answer: B) (A B)' = A' + B'. 15. What is the result of the following expression:true or true = ..... A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. Noah is programming a smart home system. He wants a light to turn on only when the sensor detects that it is NOT dark. Which operation would Noah use to invert the sensor's logical value? A) AND. B) OR. C) NOT. D) XOR. Show Answer Correct Answer: C) NOT. 17. Mia is planning a picnic and wants to go only if it is sunny or her friends are available. Which Boolean operation would Mia use to check if at least one of these conditions is true? A) AND. B) OR. C) NOT. D) NAND. Show Answer Correct Answer: B) OR. 18. Which operator is used to check if two values are equal in Java? A) ==. B) <=. C) >=. D) >. Show Answer Correct Answer: A) ==. 19. Explain the concept of a flip-flop in logic design. A) A flip-flop is a bistable device that stores one bit of data and changes state based on input signals and clock pulses. B) A flip-flop is a memory unit that requires no clock signals to operate. C) A flip-flop is a component that generates random signals for digital circuits. D) A flip-flop is a single-state device that only transmits data without storing it. Show Answer Correct Answer: A) A flip-flop is a bistable device that stores one bit of data and changes state based on input signals and clock pulses. 20. State the Boolean expression for an OR gate with inputs A and B. A) A + B. B) A B. C) A' + B'. D) A' B'. Show Answer Correct Answer: A) A + B. 21. In an OR statement both sides need to be TRUE to produce an output of TRUE. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 22. Define the Boolean expression for an AND gate with inputs X and Y. A) X + Y. B) X Y. C) X' + Y'. D) X' Y'. Show Answer Correct Answer: B) X Y. 23. Which logic gate take the input and negates it, turning 0 to 1 and 1 to 0? A) AND. B) OR. C) NOT. D) None of the above. Show Answer Correct Answer: C) NOT. 24. Which of the following best describes how to group terms in a K-map? A) Groups must be in powers of 2 (1, 2, 4, 8, etc.). B) Groups must be arranged diagonally. C) Groups can overlap randomly. D) Groups must contain at least 3 terms. Show Answer Correct Answer: A) Groups must be in powers of 2 (1, 2, 4, 8, etc.). 25. What is a truth table? A) A.A table that denotes the different outputs of the logic gates or circuit with respect to different inputs. B) B.A table that represents how logic gates are combined to form a logic circuit. C) C.A table that shows the input combinations that result in a binary output 1 in a logic gate. D) None of the above. Show Answer Correct Answer: A) A.A table that denotes the different outputs of the logic gates or circuit with respect to different inputs. ← 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