Digital Electronics & Microprocessor Unit 1: Number System Quiz
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Questions and Answers

What is the base of the hexadecimal number system?

  • 10
  • 8
  • 16 (correct)
  • 5
  • How many digits does the octal number system use?

  • 8 (correct)
  • 12
  • 6
  • 10
  • What does BCD stand for in digital electronics?

  • Binary Coded Decimal (correct)
  • Base Conversion Digit
  • Binary Counted Digit
  • Boolean Coded Digit
  • Which system uses only two digits to represent numbers?

    <p>Binary</p> Signup and view all the answers

    What is the place-holding value in any number system?

    <p>Zero</p> Signup and view all the answers

    What is used to represent any number in the decimal number system?

    <p>10 digits [0–9]</p> Signup and view all the answers

    What does the rightmost digit represent in a two-digit number in the decimal system?

    <p>The same value as itself</p> Signup and view all the answers

    What is the significance of adding a digit to the left in a number system?

    <p>It increases the value of each position by 10 times</p> Signup and view all the answers

    How is the number 100 represented in a number system with ten different symbols?

    <p>100</p> Signup and view all the answers

    What is the meaning of a digit based on its position in the decimal number system?

    <p>It represents 10 times the value when in the tens place</p> Signup and view all the answers

    What does the leftmost digit represent in a three-digit number in the decimal system?

    <p>Thousand times the value</p> Signup and view all the answers

    What does the binary system use to represent a number?

    <p>Only 0 and 1</p> Signup and view all the answers

    What happens when all symbols have been used on both digits in a number?

    <p>Both digits become zero and another digit is added to the left</p> Signup and view all the answers

    What does a single digit number represent in a decimal number system?

    <p>It represents its value</p> Signup and view all the answers

    What does the middle digit represent in a three-digit number in the decimal system?

    <p>Ten times its value</p> Signup and view all the answers

    How do we represent the number 15 with no tens and hundreds in a number system?

    <p>1005</p> Signup and view all the answers

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