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Binary Systems

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Examiner
May 27, 2017

Welcome to your Binary Systems Online Exam
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1. X=1010100 and Y=1000011 using 1's complement Y-X is

-10111

-10011

-10001

-11001

2. 1's complement as a logical operation is equivalent to

Logical design

Illogical design

Logical complement

Illogical complement

3. Gray code representation of 14 is

1010

1100

1001

1110

4. (1010.011)2 =

(10.365)10

(10.375)10

(11.365)10

(11.375)10

5. Characters can be specified in 6-bit code are

61

62

63

64

6. Voltage operated circuits represent a

Decimal variables

Hexadecimal variables

Binary variables

Octa variables

7. Register is a group of

Binary cell

Binary number

Binary digit

Binary system

8. Digital no system is said to be of base or radix

10

2

5

9. Representation of 8620 in binary is

1000_0111_1110_0000

1000_0110_0010_0000

1000_0110_1010_0000

1011_0110_0010_0000

10. Positive integers can be represented as

Signed numbers

Unsigned numbers

Negative integers

Both a and b

11. One that is not gate

AND

or

not

xnot

12. Transference of information from one register to another is

Intra-register transfer operation

Inter-register transfer operation

Out register transfer operation

In register transfer operation

13. Biquinary code is seven bit code with

Error correction properties

Error detection properties

Error transmission properties

Parity transmission properties

14. -9 with signed 2's complement representation is

10001001

11110110

11110111

11110011

15. (10110001101011.11110010)2 in hexadecimal is

2C5B.F2

2C6B.F2

3D5B.F2

3D6B.F2

16. Product of 1011 and 101

110111

110011

111011

111100

17. X+y=z represents operation that is

And

Or

Not

Xor

18. Discrete elements of information are represented in a digital systems as

signals

algebra

Matrix

Discrete

19. 8723 in BCD

1000_0111_0010_0011

1000_0001_0010_0011

1000_0101_0010_0011

1000_0111_0110_0011

20. The more convenient system for representing negative numbers is

Signed-complement system

Unsigned-complement system

Negative integer system

Positive integer system

21. Decimal number 4 in excess-3 coding is

110

111

1110

1100

22. 9's complement of 546700 is

453299

453399

543399

543299

23. (41)10 in binary is

101101

101011

101001

101101

24. Binary code that distinguishes ten elements must contain at least

Two bits

Three bits

Four bits

Five bits

25. -9 with signed magnitude representation is

10001001

11110110

11110111

11110011

26. 1's complement of 1011000 is

1100111

110111

110000

100111

27. 10's complement of 012398 is

987802

987602

987902

987502

28. (16)⊂8 in hexadecimal is

A

E

C

F

29. -9 with signed 1's complement representation is

10001001

11110110

11110111

11110011

30. Using 10's complement 3250-72532 is

-69272

-69282

-69252

-69232

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