ECAT Pre Computer Science MCQ Test For Computer Chapter 4 With Answer

Top Scorers Of ECAT Computer Science Chapter 4 Computer Arithmetic & Number System MCQ`s Test

Sr.#	Question	Answer
1	A letter, number, or a special character is represented by a.	A. bit B. kilobyte C. byte D. megabyte
2	AB₁₆+ CD₁₆= ________	A. 101111010₂ B. 101111000₂ C. 101111110₂ D. 101101000₂
3	Number 375₁₀is equivalent in binary system to.	A. 101110101 B. 100110101 C. 101110111 D. 101110011
4	Four-digit binary number 1011 is represented in the decimal system by.	A. 7 B. 9 C. 11 D. 13
5	Octal number system uses the digit 0 to 7. The equivalent of Octal 126 in decimal system is.	A. 80 B. 82 C. 86 D. 84
6	The digits used for hexadecimal number system are.	A. A through Z B. 1 through 16 C. 0 through 15 D. 0 through 9 and A through F
7	The reason why computers have been designed to use binary numbers is.	A. computer circuits have to handle 2 binary digits rather than 10 B. electronic components, by their very nature, operate in a binary mode C. everything that can be done with a base of 10 can also be done in binary D. all of the above
8	Data items are generally classified into which type of codes	A. Numeric B. Alphanumeric C. Character D. All of the above
9	97₁₀(decimal) in octal number system is equivalent to.	A. 136₈ B. 140₈ C. 139₈ D. 141₈
10	Alphanumeric characters are expressed in terms of binary codes. In ASCII (American standard Code for Information Interchange) each character is represented as a	A. 8 bit code B. 4 bit code C. 5 bit code D. 7 bit code