ECAT Pre Computer Science Chapter 4 online mcq test with answers for chapter 4 (Application and Use of Computers)

ECAT Computer Science Chapter 4 Computer Arithmetic & Number System Online Test

Sr. #	Questions	Answers Choice
1	The number 10000 would appear just immediately after.	FFFF (hex) 1111 (binary) 7777 (octal) all of the above
2	The number A9D in Hexadecimal system is equivalent to which number in binary system.	101010111101 101010011101 101110011101 101010011111
3	126₈+ 425₈= __________	111101011<sub>2</sub> 101101001<sub>2</sub> 101101011<sub>2</sub> 101100011<sub>2</sub>
4	AB₁₆+ CD₁₆= ________	101111010<sub>2</sub> 101111000<sub>2</sub> 101111110<sub>2</sub> 101101000<sub>2</sub>
5	The number A9D in Hexadecimal system is equivalent to which number in decimal system.	2727 2648 3717 2717
6	The number ABC in Hexadecimal system is equivalent to which number in decimal system.	A x 100 + B x 10 + C x 1 10 x 100 + 11 x 10 + 12 10 x 16 + 11 x 16 + 12 10 x 256 + 11 x 16 + 12
7	The binary number 101000101011 is equal to the hexadecimal number	A2D C2D A2B B2C
8	The binary number 10011101 is equal to the hexadecimal number.	9E 9F 9D FF
9	Octal number system uses the digit 0 to 7. The equivalent of Octal 126 in decimal system is.	80 82 86 84
10	What is the octal equivalent of the binary system :10111101.?	675<sub>8</sub> 275<sub>8</sub> 572<sub>8</sub> 573<sub>8</sub>
11	Number 375₁₀is equivalent in binary system to.	101110101 100110101 101110111 101110011
12	Binary number 10101101 is equivalent in decimal form to.	170 171 173 174
13	Four-digit binary number 1011 is represented in the decimal system by.	7 9 11 13
14	97₁₀(decimal) in octal number system is equivalent to.	136<sub>8</sub> 140<sub>8</sub> 139<sub>8</sub> 141<sub>8</sub>
15	125₈(octal) in decimal equivalent is equal to.	83<sub>10</sub> 84<sub>10</sub> 85<sub>10</sub> 86<sub>10</sub>

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