Q1: 1. Which number system is commonly used in digital logic design?

• A) Decimal
• B) Binary
• C) Hexadecimal
• D) Octal

Q2: 2. What is the base of the binary number system?

• A) 8
• B) 10
• C) 2
• D) 16

Q3: 3. In digital electronics, a real-life problem that can be represented using binary numbers is

• A) Storing customer addresses in a database
• B) Managing inventory levels in a warehouse
• C) Controlling traffic lights at an intersection
• D) Calculating employee salaries

Q4: 4. How many digits are used in the octal number system?

• A) 8
• B) 10
• C) 16
• D) 3

Q5: 5. Which number system uses the digits 0-9 and the letters A-F?

• A) Decimal
• B) Binary
• C) Hexadecimal
• D) Octal

Q6: 6. A real-life scenario where hexadecimal numbers are used is

• A) Tracking student grades in a school
• B) Encoding colors in web design
• C) Calculating sales tax
• D) Measuring room temperature

Q7: 7. How many bits are required to represent a single digit in the decimal number system in binary?

• A) 4
• B) 8
• C) 16
• D) 2

Q8: 8. Which number system is commonly used in computer programming?

• A) Decimal
• B) Binary
• C) Hexadecimal
• D) Octal

Q9: 9. A real-life scenario where octal numbers can be applied is

• A) Managing personal finances
• B) Organizing a music playlist
• C) Designing a computer network
• D) Building a mobile app

Q10: 10. What is the decimal equivalent of the binary number 1010?

• A) 2
• B) 5
• C) 8
• D) 10

Q11: 11. Which number system is used in digital circuits due to its ease of implementation with electronic circuits?

• A) Decimal
• B) Binary
• C) Hexadecimal
• D) Octal

Q12: 12. A real-life example where binary numbers are used is

• A) Tracking sports scores
• B) Sending emails
• C) Analyzing weather patterns
• D) Recording sound waves

Q13: 13. How many digits are used in the hexadecimal number system?

• A) 8
• B) 10
• C) 16
• D) 4

Q14: 14. Which number system is commonly used in computer memory addressing?

• A) Decimal
• B) Binary
• C) Hexadecimal
• D) Octal

Q15: 15. In digital logic design, which number system is often used to represent memory addresses?

• A) Decimal
• B) Binary
• C) Hexadecimal
• D) Octal

Q16: 16. A real-life application of octal numbers is

• A) Designing video games
• B) Managing a social media platform
• C) Controlling robotic arms
• D) Tracking fitness goals

Q17: 17. What is the binary equivalent of the decimal number 13?

• A) 1010
• B) 1000
• C) 1101
• D) 1111

Q18: 18. Which number system is commonly used in digital displays and electronic calculators?

• A) Decimal
• B) Binary
• C) Hexadecimal
• D) Octal

Q19: 19. A real-life scenario where decimal numbers are used is

• A) Calculating restaurant bills
• B) Monitoring heart rate
• C) Mapping GPS coordinates
• D) Analyzing stock market trends

Q20: 20. How many digits are used in the octal number system?

• A) 8
• B) 10
• C) 16
• D) 3

Q21: 21. Which number system is commonly used in digital signal processing?

• A) Decimal
• B) Binary
• C) Hexadecimal
• D) Octal

Q22: 22. A real-life problem that can be represented using binary numbers is

• A) Managing personal contacts
• B) Encoding music files
• C) Calculating mortgage payments
• D) Controlling traffic signals

Q23: 23. What is the hexadecimal equivalent of the binary number 1101?

• A) A
• B) D
• C) 7
• D) 13

Q24: 24. In digital logic design, which number system is used to represent colors in graphics?

• A) Decimal
• B) Binary
• C) Hexadecimal
• D) Octal

Q25: 25. A real-life application of hexadecimal numbers is

• A) Sorting emails in a mailbox
• B) Designing a website layout
• C) Managing personal finances
• D) Analyzing market trends