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GATE 2022 : Digital Electronics Quiz- 1 (App update required to attempt this test)

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Question 1

A mod - 4 ripple counter is cascaded with mod - 8 synchronous counter. The resulting circuit will form a counter of mod = ___?

Question 2

Find the output frequency (in KHz) it the clock frequency is 4KHz ?

Question 3

On the 3rd clock pulse of a 4- bit Johnson counter is 1110 (Q0 Q1 Q2 Q3). Find the initial sequence in decimal number Format.

Question 4

Find the number of states in a 5 - bit ring, 5 - bit Johnson counter and also the number of unused states in each case respectively:

Question 5

If X = (a + 1), and logic circuit shown is having finite propagation delay. This circuit can be used as a clock generator, then a is____

Question 6

If the following code is executed the number of times the instruction ‘DCR C’ get executed is _______.

MVI B, FF H

MVI C, FF H

LOOP: DCR C

JNZ LOOP

DCR B

JNZ LOOP

HLT

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May 2ESE & GATE EE