1. Which one of the following is correct? The convention is that the number 0 has the normal form representation as ?

0

.0

0.0

0.10?

Answer: 0.0

Explanation:


2. In signed magnitude representation, the binary equivalent 22.5625 is (the bit before comma represents the sign) ?

0, 10110.1011

0, 10110.1001

1, 10101.1001

1, 10110.1001

Answer: 0, 10110.1001

Explanation:


3. Which one of the following is not a valid octal number ?

1101

740

970

220

Answer: 970

Explanation:


4. (13.125)10= (?)8 ?

3.7

16.5

15.1

15.5

Answer: 15.1

Explanation:


5. The decimal equivalent of hexadecimal number 2AOF is ?

17670

17607

17067

10767

Answer: 10767

Explanation:


6. The Octal equivalent of the HEX number AB.CD is ?

253.314

253.632

526.314

526.632

Answer: 253.632

Explanation:


7. The decimal number 110011.00101 is represented by ?

59.9864

625.5115

43.33225

51.15625

Answer: 51.15625

Explanation:


8. The hexadecimal number AB6 is equal to decimal number ?

2274

2742

2427

2247

Answer: 2742

Explanation:


9. Hexadecimal equivalent of 11111 + 10001 is ?

30

C0

F0

E0

Answer: 30

Explanation:


10. The decimal equivalent of a hexadecimal number (1A2D)16 is ?

4091

4093

5701

6701

Answer: 6701

Explanation: