Digital Logic Questions Answers GATE 2021

Q1 – Let the representation of a number in base 3 be 210. What is the hexadecimal representation of the number? (GATE 2021 SET 1)

1. 15

2. 21

3. D2

4. 528

Q2 – Consider a 3-bit counter, designed using T flip-flops, as shown below:

Assuming the initial state of the counter given by PQR as 000, what are the next three states? (GATE 2021 SET 1)

1. 011, 101, 000

2. 001, 010, 111

3. 011, 101, 111

4. 001, 010, 000