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 (A)</p> Signup and view all the answers

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

<p>Zero (C)</p> Signup and view all the answers

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

<p>10 digits [0–9] (B)</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 (D)</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 (A)</p> Signup and view all the answers

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

<p>100 (D)</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 (D)</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 (D)</p> Signup and view all the answers

What does the binary system use to represent a number?

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

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

<p>It represents its value (C)</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 (D)</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 (B)</p> Signup and view all the answers

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