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Digital-electronics Questions Set 181:

Quiz Mode

How many AND gates are required to make 4:1 MUX?

Solution:

To implement 41 MUX using 21 MUX. How many 2*1 MUX are required?

Solution:

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

Solution:

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

Solution:

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

Solution:

What is the output of the following algebraic expression ((A+BC)((A'(B+C))') ?

Solution:

Which is the basic memory element?

Latches

OR gate

X-NOR gate

None of the above

Solution:

To implement a full adder using NAND gates. How many NAND gates are required?

Solution:

Why is buffer gate used?

To generate propagation delay.

For impedance matching.

Both A and B.

Solution:

Synchronous counters are _______ than ripple counters.

None of the above

Faster

Slower

Same in speed

Solution:

A digital circuit that can store only one bit is called a _____.

NOR gate

Flip-flop

XOR gate

Solution:

The hexadecimal number (1E.43)₁₆ is equivalent to which of the following octal numbers?

(36.206)₈

(36.506)₈

(35.506)₈

(35.206)₈

Solution:

Content of which type(s) of memory can be erased by ultraviolet light?

Flash Memory

EPROM

Both Flash Memory and EPROM

None of the above

Solution:

A SCR (Silicon Controlled Rectifier) is a

Device with 3 junctions

Device with 2 junctions

Device with 1 junction

Device with 4 junctions

Solution:

Choose the correct match(s).

A(ii,iii,iv), B(iv), C(iii,iv)

A(i,iii,iv), B(i, iv), C(iii)

A(ii,iv), B(i,ii,iv), C(iii)

A(ii,iii), B(i), C(i,iv)

Solution:

Which of the following combinational circuits is commonly used for arithmetic operations in digital systems?

Multiplexer

Decoder

Adder

Comparator

Solution:

A ring oscillator consists of 5 inverters running at a frequency of 1MHz. What is the propagation delay in each of the given inverters?

50 ns

100 ns

150 ns

200 ns

Solution:

Which of the following sequential circuits is commonly used for error detection and correction in data transmission?

Flip-flop

Counter

Shift register

Parity checker

Solution:

A 4 bit Ripple up counter consists of flip flops that each have a propagation delay of 12ns from clock to output. Amount of time required for this counter to recycle from 1111 to ‘0000’ (in ns) is _____

3ns

48ns

6ns

44ns

Solution:

What is a digital-to-analog converter (DAC)?

It stores digital data on the computer.

It takes the digital data from an audio CD and converts it to a useful analog form.

It converts electrical power into mechanical power.

It converts alternating current (AC) into direct current (DC).

Digital-electronics Questions Set 181:

How many AND gates are required to make 4:1 MUX?

Solution:

To implement 4*1 MUX using 2*1 MUX. How many 2*1 MUX are required?

Solution:

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

Solution:

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

Solution:

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

Solution:

What is the output of the following algebraic expression ((A+BC)((A'(B+C))') ?

Solution:

Which is the basic memory element?

Solution:

To implement a full adder using NAND gates. How many NAND gates are required?

Solution:

Why is buffer gate used?

Solution:

Synchronous counters are _______ than ripple counters.

Solution:

A digital circuit that can store only one bit is called a _____.

Solution:

The hexadecimal number (1E.43)16 is equivalent to which of the following octal numbers?

Solution:

Content of which type(s) of memory can be erased by ultraviolet light?

Solution:

A SCR (Silicon Controlled Rectifier) is a

Solution:

Choose the correct match(s).

Solution:

Which of the following combinational circuits is commonly used for arithmetic operations in digital systems?

Solution:

A ring oscillator consists of 5 inverters running at a frequency of 1MHz. What is the propagation delay in each of the given inverters?

Solution:

Which of the following sequential circuits is commonly used for error detection and correction in data transmission?

Solution:

A 4 bit Ripple up counter consists of flip flops that each have a propagation delay of 12ns from clock to output. Amount of time required for this counter to recycle from 1111 to ‘0000’ (in ns) is _____

Solution:

What is a digital-to-analog converter (DAC)?

Solution:

Related Question Sets:

Related Topics:

To implement 41 MUX using 21 MUX. How many 2*1 MUX are required?

The hexadecimal number (1E.43)₁₆ is equivalent to which of the following octal numbers?