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1. The value of radix in binary number system is, (a) 2, 2. The value of radix in octal number system is, (b) 8, (c) 10, (d) 16, (a) 2, (b) 8, 3. The value of radix in decimal number system is, (c) 10, (d) 16, (a) 2, (b) 8, 4. The value of radix in hexadecimal number system is, (c) 10, (d) 16, (a) 2, 5. Which of the following are not valid symbols in octal number system ?, (b) 8, (c) 10, (d) 16, (a) 2, (b) 8, (c) 9, (d) 7, 6. Which of the following are not valid symbols in hexadecimal number system ?, 2) 2, (b) 8, 7. Which of the following are not valid symbols in decimal number system?, (c) 9, (d) G, (a) 2, (b) 8, (c) 9, (d) G, 8. The hexadecimal digits are 1 to 0 and A to, (a) E, (b) F, (c) G, (d) D, 9. The binary equivalent of the decimal number 10 is ., (a) 0010, (b) 10, 10. ASCII code is a 7 bit code for..., (c) 1010, (d) 010, (a) letters, (b) numbers, (c) other symbols, (d) all of these, 11., How many bytes are there in 1011 1001 0110 1110 numbers?, (b) 2, (a) 1, (c) 4, (d) 8

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12. The binary equivalent of the octal Numbers 13.54 is..., (c) 1101.1110, (a) 1011.1011, (b) 1001.1110, (d) None of these, 13. The octal equivalent of 111 010 is...., (a) 81, (b) 72, 14. The input hexadecimal representation of 1110 is, (c) 71, (d) 82, (a) 0111, (b) E, 15. Which of the following is not a binary number ?, (c) 15, (d) 14, (a) 1111, (b) 101, (c) 11E, (d) 000