1. 3 x 10^{1} + 4 x 10^{0} is

- 0.34
- 3.4
- 34
- 340

2. The decimal equivalent of 1000 is

- 2
- 4
- 6
- 8

3. The binary number 11011101 is equal to the decimal number

- 121
- 221
- 441
- 256

4. The decimal number 21 is equivalent to the binary number

- 10101
- 10001
- 10000
- 11111

5. The decimal number 250 is equivalent to the binary number

- 11111010
- 11110110
- 11111000
- 11111011

6. The sum of 1111 + 1111 in binary equals

- 0000
- 2222
- 11110
- 11111

7. The difference of 1000 − 100 equals

- 100
- 101
- 110
- 111

8. The 1’s complement of 11110000 is

- 11111111
- 11111110
- 00001111
- 10000001

9. The 2’s complement of 11001100 is

- 00110011
- 00110100
- 00110101
- 00110110

10. The decimal number + 122 is expressed in the 2’s complement form as

- 01111010
- 11111010
- 01000101
- 10000101

11. The decimal number − 34 is expressed in the 2’s complement form as

- 01011110
- 10100010
- 11011110
- 01011101

12. A single-precision floating-point binary number has a total of

- 8 bits
- 16 bits
- 24 bits
- 32 bits

13. In the 2’s complement form, the binary number 10010011 is equal to the decimal number

- −19
- +109
- +91
- −109

14. The binary number 101100111001010100001 can be written in octal as

- 5471230
_{8 } - 5471241
_{8 } - 2634521
_{8 } - 23162501
_{8}

15. The binary number 10001101010001101111 can be written in hexadecimal as

- AD467
_{16 } - 8C46F
_{16 } - 8D46F
_{16 } - AE46F
_{16}