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Digital-electronics Questions Set 53:

Quiz Mode

Which of the following is an example of idempotency?

X.(X+Y) = X

(X+Y).(X+Y') = X

X+X+X ... +X = X

X+X.Y = X

Solution:

Which of the following digital logic devices is known as a many-to-one device?

Multiplexer

Adder

Encoder

Decoder

Solution:

In an OR gate, if A and B are two inputs and there is a stuck-at-1 fault in the B path, then the output will be:

Solution:

On what type of substrate is a P-well created?

n-type substrate

p-type substrate

Both n-type and p-type substrates

Some part of p-type substrate and some on n-type substrate

Solution:

A bulb in a room has two switches. It can be turned ON only when both the switches are either ON or OFF. The logic of switching the bulb resembles which logic gate?

AND gate

NOR gate

XNOR gate

XOR gate

Solution:

In a DOWN-counter, each flip-flop is triggered by

The output of the next flip-flop

The normal output of the preceding flip-flop

The clock pulse of the previous flip-flop

The inverted output of the preceding flip-flop

Solution:

How many NAND gates are there in master slave JK flipflop if all gates are NAND gates?

7

8

9

6

Solution:

Which of the following uses the input ORI?

Twisted tail counter

Ring counter

Up counter

up/ down counter

Solution:

Which gates in Digital Circuits are required to convert a NOR-based SR latch to an SR flip-flop?

S

R

Clock

Both S and R

Solution:

A ripple counter’s speed is limited by the propagation delay of _____________

Only circuit gates

Each flip-flop

All flip-flops and gates

The flip-flops only with gates

Digital-electronics Questions Set 53:

Which of the following is an example of idempotency?

Solution:

Which of the following digital logic devices is known as a many-to-one device?

Solution:

In an OR gate, if A and B are two inputs and there is a stuck-at-1 fault in the B path, then the output will be:

Solution:

On what type of substrate is a P-well created?

Solution:

A bulb in a room has two switches. It can be turned ON only when both the switches are either ON or OFF. The logic of switching the bulb resembles which logic gate?

Solution:

In a DOWN-counter, each flip-flop is triggered by

Solution:

How many NAND gates are there in master slave JK flipflop if all gates are NAND gates?

Solution:

Which of the following uses the input ORI?

Solution:

Which gates in Digital Circuits are required to convert a NOR-based SR latch to an SR flip-flop?

Solution:

A ripple counter’s speed is limited by the propagation delay of _____________

Solution:

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