Digital Logic Design Quiz 2 (CS-2B)

What is the maximum number of input lines for an encoder with 'n' output lines?

• 2n

• n^2

• n

• 2^n

Which IC is used for a priority encoder with inputs D0-D7?

• IC7408

• IC4532

• IC7404

• IC7432

What does the enable pin (E) do in an encoder?

• Sets all outputs to 0

• Controls the priority of inputs

• Inhibits the encoder

• Activates all outputs

What is the output of a 4x2 encoder when D3 is high?

• 11

• 10

• 01

• 00

How many output lines does a 3x8 decoder have?

• 2

• 4

• 8

• 16

What is the function of a decoder?

• Converts binary to decimal

• Activates one output based on input

• Generates random outputs

• Encodes multiple inputs

What is the output of a 1x2 decoder when the input is 0?

• Both outputs are 1

• Q0 = 0, Q1 = 1

• Both outputs are 0

• Q0 = 1, Q1 = 0

Which logic gate IC is used to implement a 2x4 decoder?

• IC7404

• IC7432

• IC7408

• IC4511

What does the output of a decoder represent?

• Binary code

• Min terms of input variables

• Random values

• Encoded data

What is the output of a 3x8 decoder when inputs are 1, 1, 0?

• Q6 = 1

• Q4 = 1

• Q3 = 1

• Q2 = 1