Digital Circuits Mock Test 4

10%

Question 1 of 10

1. In serial addition, the addition is carried out __________

3 bit per second

Byte by byte

All bits at the same time

Bit by bit

Question 1 of 10

Question 2 of 10

2. What is the first thing you will need if you are going to use a macro-function?

An experienced design engineer

Good documentation

Experience in HDL

A complicated design project

Question 2 of 10

Question 3 of 10

3. Which combinational circuit is renowned for selecting a single input from multiple inputs & directing the binary information to output line?

Data Selector

Data distributor

Both data selector and data distributor

DeMultiplexer

Question 3 of 10

Question 4 of 10

4. If minuend = 0, subtrahend = 1 and borrow input = 1 in a full subtractor then the borrow output will be __________

High Impedance

Floating

Question 4 of 10

Question 5 of 10

5. One multiplexer can take the place of ___________

Combinational logic circuits

Several SSI logic gates

Several Ex-NOR gates

Several SSI logic gates or combinational logic circuits

Question 5 of 10

Question 6 of 10

6. A logic circuit that provides a HIGH output for both inputs HIGH or both inputs LOW is ____________

OR gate

Ex-OR gate

NAND gate

Ex-NOR gate

Question 6 of 10

Question 7 of 10

7. Which of the following logic expressions represents the logic diagram shown?

X=(AB)'+AB

X=(AB)'+A'B'

X=A'B'+AB

X=AB'+A'B

Question 7 of 10

Question 8 of 10

8. Controlled inverter is also known as ____________

Controlled gate

Both controlled buffer and NOT gate

Controlled buffer

NOT gate

Question 8 of 10

Question 9 of 10

9. The two input MUX would have ____________

1 select line

2 select lines

4 select lines

3 select lines

Question 9 of 10

Question 10 of 10

10. Carry lookahead logic uses the concepts of ___________

Complementing the outputs

Generating and propagating carries

Inverting the inputs

Ripple factor

Question 10 of 10