CSC 114 Number Systems pass Questions paper

 CSC 114 Number Systems exam question

1. What is the base of the decimal number system?  

   a) 2  

   b) 8  

   c) 10

   d) 16  

2. Which of the following is a binary number?  

   a) 1001  

   b) 12A  

   c) 23F  

   d) 891  

3. Convert binary 1010 to decimal.  

   a) 10 

   b) 11  

   c) 12  

   d) 9  

4. The hexadecimal digit 'B' represents which decimal value?  

   a) 11

   b) 12  

   c) 15  

   d) 2  

5. What is the octal equivalent of binary 111?  

   a) 7

   b) 5  

   c) 3  

   d) 10  

 6. Which number system uses digits from 0 to 7?  

   a) Binary  

   b) Octal

   c) Decimal  

   d) Hexadecimal  

7. What is the result of binary addition: 101 + 011?  

   a) 1000  

   b) 1000 (101 + 011 = 1000)  

   c) 1001  

   d) 1010  

8. The binary equivalent of decimal 15 is:  

   a) 1110  

   b) 1111

   c) 1010  

   d) 1001  

9. How many digits are there in the hexadecimal system?  

   a) 10  

   b) 8  

   c) 16  

   d) 2  

10. What is 1's complement of binary 1101?  

    a) 0010  

    b) 0010

    c) 1010  

    d) 1100  

11. Convert hexadecimal 1A to decimal.  

    a) 26 

    b) 16  

    c) 25  

    d) 30  

12. Which of these represents a nibble?  

    a) 4 bits  

    b) 8 bits  

    c) 16 bits  

    d) 2 bits  

13. The decimal value of octal number 12 is:  

    a) 10

    b) 12  

    c) 14  

    d) 8  

14. What is the result of binary subtraction 1010 - 0101?  

    a) 0101

    b) 1001  

    c) 0110  

    d) 0100  

15. The 2's complement is used to represent:  

    a) Positive numbers  

    b) Negative numbers

    c) Fractions  

    d) Hexadecimal numbers  

16. The base of the binary number system is _______________

17. The decimal number 10 is equal to binary _______________

18. In hexadecimal, the digit after 9 is represented by _______________

19. The octal number 7 is equal to binary _______________

20. The 1's complement of binary 1010 is  _______________

21. A group of 8 bits is called a _______________

22. The hexadecimal number FF in decimal is _______________

23. The binary equivalent of decimal 7 is _______________ 

24. The octal equivalent of decimal 15 is _______________

25. In binary subtraction, 1 - 1 equals _______________

26. The decimal value of binary 1111 is _______________

27. The hexadecimal digit 'D' represents decimal _______________

28. The 2's complement of binary 0001 is _______________

29. The binary addition of 1101 and 0011 is _______________

30. The octal number system uses base  _______________

31. The binary number system is also known as the base-2 system.

True/False 

32. Hexadecimal numbers can include the letter 'G'. 

True/False 

33. Octal numbers are sometimes used to represent binary numbers more compactly.

True/False 

34. The decimal equivalent of binary 1010 is 12. 

True/False 

35. The 1's complement of a binary number is obtained by subtracting 1 from each bit.     

True/False 

36. In hexadecimal, '10' represents the decimal value 16.

       True/False 

37. A nibble consists of 8 bits

True/False 

38. The octal number 10 is equal to decimal 8. 

True/False