Digital Electronics MCQs - Digital Integrated Circuits

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Welcome to your Digital Electronics Introduction (MCQs)

What is digital electronics?

The study of analog circuits

The use of continuous signals for information processing

The study of electronic devices

The use of discrete, quantized signals for information processing

In digital electronics, what is a binary digit called?

Byte

Nibble

Word

Bit

How many different values can be represented by 3 bits?

Which numbering system is commonly used in digital electronics?

Decimal

Binary

Hexadecimal

Octal

What is the basic building block of digital circuits?

Transistors

Resistors

Capacitor

Inductors

Which of the following statements is correct for digital signals and digital circuits?

digital signals are less susceptible to noise or degradation in quality

Digital circuits use transistors to create logic gates to perform Boolean logic

It is easier to perform error detection and correction with digital signal

All of the above

What is the Boolean expression for the AND gate?

A + B

A * B

A OR B

A NOR B

How many possible input combinations will be in the truth table of a 4-input NAND gate?

What is the output of an AND gate if both of its inputs are set to 1 (logic high)?

0 (logic low)

1 (logic high)

It depends on the gate type.

Cannot be determined

How many bits are needed to store one BCD digit?

What is the primary function of a decoder in digital circuits?

To perform arithmetic operations

To convert binary data to analog data

To generate multiple outputs based on input codes

To store data temporarily

The following gates are known as universal logic gates?

AND, NOR gate

XOR, XNOR gate

NOR, NAND gate

NAND, OR gate

What is the purpose of a flip-flop in digital circuits?

To perform logical operations

To store a single binary digit

To convert analog signals to digital signals

To amplify signals

Which digital component acts as a memory element that retains its state until changed?

Counter

Multiplexer

Flip-flop

Decoder

What is the primary use of a multiplexer (MUX) in digital circuits?

To perform logical operations

To store data

To select one of multiple inputs for output

To perform arithmetic operations

Which digital component is commonly used to count events or pulses in digital systems?

Counter

Decoder

Flup-flop

Multiplexer

What is the primary function of a shift register in digital circuits?

To shift data between analog and digital domains

To store and shift data serially

To store data permanently

To perform mathematical operations

Temperature variation is a/an?

Analog quantity

Digital quantity

Either analog or digital quantity

None

What is the primary role of a clock signal in digital systems?

To power the circuits

To synchronize operations and signal timing

To perform arithmetic operations

To store data

In digital circuits, what is the purpose of a demultiplexer (DEMUX)?

To combine multiple inputs into one output

To perform logical operations

To generate multiple outputs from one input

To store data

What is the primary function of a digital comparator?

To perform mathematical operations

To compare two binary numbers and indicate their relationship

To store data

To generate clock signals

Which logic gate performs the NAND operation?

AND gate followed by a NOT gate

OR gate followed by a NOT gate

XOR gate followed by a NOT gate

NOR gate followed by a NOT gate

The logical sum of two or more than two logical products is termed as

SOP

POS

None

The Minterms for four variables?

Which of the given logic family provide minimum power dissipation?

ECL

TTL

CMOS

None

The AND operation is equivalent to?

Intersection

Union

Median

None

Which is the fastest logic family?

ECL

TTL

CMOS

DTL

Which of the following statements is true for registers.

A collection of transistors for storing binary information

A collection of flip flops for storing binary information

None

The different names of gray code

Cyclic

Unit distance code

Minimum error codes

All of the above

The reflective code is also called as?

Diminished complement code

Radix complement code

Self complement code

None

The basic SRAM consists of the following

One transistors and one capacitor

One diode and one capacitor

One transistors and one diode

None

In binary number system the first bit from right to left is called as

MSB

LSB

First

Last

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