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CSUC101_Unit1_EVEN

Total questions: 8

Worksheet time: 10mins

Name
Class
Date
1.

A 12-bit system represents unsigned hexadecimal values. What is the result of incrementing FFF₁₆, and what does it imply?

a)

Result is 1000₁₆; 13-bit representation is now required.

b)

Result is FFF₁₆; value remains unchanged due to saturation.

c)

Result is 000₁₆; but no overflow occurs since it is unsigned.

d)

Result is 000₁₆; the value wraps around due to overflow.

2.

The number 6702 in base 9 is equivalent to 34515 in which base system?

a)

6

b)

7

c)

8

d)

9

3.

The decimal number 18.310 is approximately equal to which of the following in hexadecimal (base-16), accurate to within ±0.01?

a)

12.4C16

b)

12.3316

c)

12.2C16

d)

12.3F16

4.

For a signed 5-bit number represented in 2’s complement, what is the range of decimal values that can be represented?

a)

-15 to +15

b)

-16 to +15

c)

-15 to +16

d)

0 to 31

5.

Using 5-bit 2’s complement representation, compute the binary result of: (6−11). What is the result and its decimal interpretation?

a)

10110, -10

b)

00101, 5

c)

11011, -5

d)

01001, 9

6.

Which of the following is the Gray code equivalent of the binary number 1011​2?

a)

1110

b)

1101

c)

1001

d)

1111

7.

Identify the Logic Gate that produces output F with reference to Inputs A, B and C as per the waveforms given below:

a)

Three Inputs NAND Gate

b)

Three inputs XOR Gate

c)

Three inputs XNOR gate

d)

Three inputs NOR gate

8.

Which of the following bit patterns is a valid Excess-3 code but not a valid BCD code?

a)

1001

b)

1010

c)

1000

d)

0111