ECAT Computer Arithmetic And Number System Test Online

Photo of Maan Ali Maan AliLast Updated: May 5, 2025

ECAT Computer Arithmetic And Number System Test

ECAT Computer Science Arithmetic And Number System Online Test

Total Questions: 25
Time Allowed: 15 Minutes
Total Marks: 25
How to Attempt Test: Please choose the right Option in MCQ-type question.
Test Helpful For: ECAT Entry Test
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Engineering Subject

1. The reason why computer have been designed to use binary numbers is ?

2. 97 10 on octal number system is equivalent to ?
A = 136 8 B = 140 8 C = 139 8 D = 141 8

3. AB 16 + CD 16 ?
A = 178 16 B = 168 16 C = ABCD 16 D = ADEF 16

4. The digits used for hexadecimal number system are ?

5. The binary number 101000101011 is equal to the hexadecimal number ?

6. 125 8 (octal) in decimal equivalent is equal to ?A= 83 10 B = 84 10 C= 85 10 D= 86 10

7. Base 8 is often used in computing because ?

8. Octal number system uses the digit 0 to 7. The equivalent of Octal 126 in decimal system is ?

9. A letter, number, or a special character is represented by a ?

10. AB 16 + CD 16 ?
A = 178 10 B = 168 10 C = ABCD 10 D = 376 10

11. The number A9D in Hexadecimal system is equivalent to which number in decimal system ?

12. What is the octal equivalent of the binary number: 10111101 ?

A = 675 8 B = 275 8 C = 572 8 D = 573 8

13. The binary number 10101011 is equal to the hexadecimal number ?

14. Number 375 10 is equivalent in binary system to ?

15. Data is represented on a computer by means of a two-state on/off system called ?

16. The number ABC in Hexadecimal system is equivalent to which number in decimal system ?

17. The number A9D in Hexadecimal system is equivalent to which number in octal system ?

18. The main advantage of hexadecimal number is the case of conversion from hexadecimal to ?

19. Binary number 10101101 is equivalent in decimal form to ?

20. Four-digit binary number 1011 is represented in the decimal system by ?

21. Alphanumeric characters are expressed in terms of binary codes. In ASCII (American Standard Code for Information Interchange), each character is represented as a ?

22. The binary number 10011101 is equal to the hexadecimal number ?

23. Data items are generally classified into which type of codes ?

24. The hexadecimal number system is widely used n analyzing and programming in ?

25. The number ABC in Hexadecimal system is equivalent to which number in decimal system ?


 

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Photo of Maan Ali Maan AliLast Updated: May 5, 2025
Photo of Maan Ali

Maan Ali

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