Engineering%20Electronics%20 Engineering MCQs: multiple choice questions and answers,Mock Tests and Practice Papers

Question:

 A signal is an energy signal when the signal has

1.Infinite energy

2.Finite energy

3. zero energy

4.None of the above

Posted Date:-2022-03-17 18:58:11

Question:

 Determine the Fourier transform of unit step x(t) = u(t)

1.1/j Ãâ€°

2.1/2j Ãâ€°

3.j Ãâ€°

4.2j Ãâ€°

Posted Date:-2022-03-17 19:46:32

Question:

 The equation y(t) = a x(t)+b comes under which system

1.Linear for any value of b

2.Linear if b > 0

3.Linear if b < 0

4.Non-linear

Posted Date:-2022-03-17 19:33:08

Question:

 Which of the following is the one of the property of unit impulse ÃŽÂ´(t) is

1.ÃŽÂ´(at) = a ÃŽÂ´(t)

2.ÃŽÂ´(at) = ÃŽÂ´(t)

3.ÃŽÂ´(at) = 1/a ÃŽÂ´(t)

4.ÃŽÂ´(at) = [ÃŽÂ´(t)]a

Posted Date:-2022-03-17 19:36:06

Question:

 Which of the following time system operates with a continuous time signal & produces a continuous time output signal

1.Continuous time system

2.Discrete time system

3.Time invariant system

4.Time variant system

Posted Date:-2022-03-17 18:47:32

Question:

A continuous-time periodic signal x(t), having a period T, is convolved with itself. Then the resulting signal is

1. Not Periodic

2.D. Periodic having a period

3.Periodic having a period T

4.Periodic having a period T/2

Posted Date:-2022-03-17 19:45:04

Question:

A discrete signal is said to be even or symmetric if x(-n) is equal to

1.X(n00

2.0

3. "â€œx(n)

4. "â€œx(-n)

Posted Date:-2022-03-17 18:45:15

Question:

A discrete signal is said to be odd or asymmetric if x(-n) is equal to

1.X(n)

2.0

3."â€œx(-n)

4.Ã¢Ë†Å¾

Posted Date:-2022-03-17 19:09:24

Question:

A signal is a power signal when the signal has

1.Infinite average power

2.finite average power

3.Zero average power

4.None of the above

Posted Date:-2022-03-17 18:46:46

Question:

A system is defined as

1.Any combination of components or elements that has a useful function.

2.Any combination of elements that has a single input and a single output.

3.Any closed volume for which all the inputs and outputs are known

4. Any physical quantity that varies with time,space or any other independent variable

Posted Date:-2022-03-17 19:17:40

Question:

A system is said to be casual if the output of the system depends on the

1.Past & Present Inputs

2.Present Input

3.Future Input

4.Past & Future Inputs

Posted Date:-2022-03-17 19:12:46

Question:

A system is said to be dynamic if the output of the system depends on the
A. Past InputB. Future InputC. Present InputD. Present & Future Inputs

1.Past Input

2.Future Input

3.Present Input

4.Present & Future Inputs

Posted Date:-2022-03-17 19:10:41

Question:

A system is said to be stable if the bounded input to the system produces

1.Bounded output

2.Non bounded output

3.Inbound output

4.Outbound output

Posted Date:-2022-03-17 19:11:42

Question:

For a band pass signal extends from 1 KHz to 2 KHz. Then the minimum sampling frequency that needed to retain all information of the sampled signal is

1.1 KHz.

2.2 KHz.

3. 3 KHz.

4.4 KHz.

Posted Date:-2022-03-17 19:40:24

Question:

Frequency and Time period are ______

1.Proportional to each other

2. Inverse of each other

3.Same

4.None of the above

Posted Date:-2022-03-17 19:14:12

Question:

Nyquist bit rate formula defines the theoretical maximum bit rate for which channel

1.Noisy

2.Noiseless

3.Bandpass

4.Low-pass

Posted Date:-2022-03-17 19:19:14

Question:

Nyquist bit rate formula defines the theoretical maximum bit rate for which channel

1.Noisy

2.Noiseless

3.Bandpass

4.Low-pass

Posted Date:-2022-03-17 19:23:38

Question:

The  given system is characterized by the differential equation d2y(t)/dt2-dy(t)/dt-2y(t)= x(t). Then the system is:

1.Linear and stable

2. Linear and unstable

3.Nonlinear and unstable

4.Nonlinear and stable

Posted Date:-2022-03-17 19:38:02

Question:

The function which relates output of a system to the input(signal) of a system is

1.Periodic function

2. Non-periodic function

3.Transfer function

4.None of the above

Posted Date:-2022-03-17 18:48:35

Question:

The Parseval's theorem states that the energy in the time-domain representation of a signal is equal to the energy in the frequency domain representation normalized by

1. 2Ãâ‚¬

2.Ãâ‚¬/2

3. Ãâ‚¬/2

4. Ãâ‚¬/4

Posted Date:-2022-03-17 19:37:08

Question:

Which of the following can weaken a signal

1.Attenuation

2.Distortion

3.Noise

4.All of the above

Posted Date:-2022-03-17 19:16:11

Question:

_________ is defined as any physical quantity that varies with time, space or any other independent variable

1.Signal

2.system

3.signals & system

4.None of the above

Posted Date:-2022-03-17 18:44:09

Posted on by R4R Team

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Engineering/Engineering%20Electronics%20 Sample Test,Sample questions

Question:
A signal is an energy signal when the signal has

Question:
Determine the Fourier transform of unit step x(t) = u(t)

Question:
The equation y(t) = a x(t)+b comes under which system

Question:
Which of the following is the one of the property of unit impulse ÃŽÂ´(t) is

Question:
Which of the following time system operates with a continuous time signal & produces a continuous time output signal

Question:
A continuous-time periodic signal x(t), having a period T, is convolved with itself. Then the resulting signal is

Question:
A discrete signal is said to be even or symmetric if x(-n) is equal to

Question:
A discrete signal is said to be odd or asymmetric if x(-n) is equal to

Question:
A signal is a power signal when the signal has

Question:
A system is defined as

Question:
A system is said to be casual if the output of the system depends on the

Question:
A system is said to be dynamic if the output of the system depends on the A. Past InputB. Future InputC. Present InputD. Present & Future Inputs

Question:
A system is said to be stable if the bounded input to the system produces

Question:
For a band pass signal extends from 1 KHz to 2 KHz. Then the minimum sampling frequency that needed to retain all information of the sampled signal is

Question:
Frequency and Time period are ______

Question:
Nyquist bit rate formula defines the theoretical maximum bit rate for which channel

Question:
Nyquist bit rate formula defines the theoretical maximum bit rate for which channel

Question:
The given system is characterized by the differential equation d2y(t)/dt2-dy(t)/dt-2y(t)= x(t). Then the system is:

Question:
The function which relates output of a system to the input(signal) of a system is

Question:
The Parseval's theorem states that the energy in the time-domain representation of a signal is equal to the energy in the frequency domain representation normalized by

Question:
Which of the following can weaken a signal

Question:
_________ is defined as any physical quantity that varies with time, space or any other independent variable

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R4R Team

Engineering/Engineering%20Electronics%20 Sample Test,Sample questions

Question: A signal is an energy signal when the signal has

Question: Determine the Fourier transform of unit step x(t) = u(t)

Question: The equation y(t) = a x(t)+b comes under which system

Question: Which of the following is the one of the property of unit impulse ÃŽÂ´(t) is

Question: Which of the following time system operates with a continuous time signal & produces a continuous time output signal

Question: A continuous-time periodic signal x(t), having a period T, is convolved with itself. Then the resulting signal is

Question: A discrete signal is said to be even or symmetric if x(-n) is equal to

Question: A discrete signal is said to be odd or asymmetric if x(-n) is equal to

Question: A signal is a power signal when the signal has

Question: A system is defined as

Question: A system is said to be casual if the output of the system depends on the

Question: A system is said to be dynamic if the output of the system depends on the A. Past InputB. Future InputC. Present InputD. Present & Future Inputs

Question: A system is said to be stable if the bounded input to the system produces

Question: For a band pass signal extends from 1 KHz to 2 KHz. Then the minimum sampling frequency that needed to retain all information of the sampled signal is

Question: Frequency and Time period are ______

Question: Nyquist bit rate formula defines the theoretical maximum bit rate for which channel

Question: Nyquist bit rate formula defines the theoretical maximum bit rate for which channel

Question: The given system is characterized by the differential equation d2y(t)/dt2-dy(t)/dt-2y(t)= x(t). Then the system is:

Question: The function which relates output of a system to the input(signal) of a system is

Question: The Parseval's theorem states that the energy in the time-domain representation of a signal is equal to the energy in the frequency domain representation normalized by

Question: Which of the following can weaken a signal

Question: _________ is defined as any physical quantity that varies with time, space or any other independent variable

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Question:
A signal is an energy signal when the signal has

Question:
Determine the Fourier transform of unit step x(t) = u(t)

Question:
The equation y(t) = a x(t)+b comes under which system

Question:
Which of the following is the one of the property of unit impulse ÃŽÂ´(t) is

Question:
Which of the following time system operates with a continuous time signal & produces a continuous time output signal

Question:
A continuous-time periodic signal x(t), having a period T, is convolved with itself. Then the resulting signal is

Question:
A discrete signal is said to be even or symmetric if x(-n) is equal to

Question:
A discrete signal is said to be odd or asymmetric if x(-n) is equal to

Question:
A signal is a power signal when the signal has

Question:
A system is defined as

Question:
A system is said to be casual if the output of the system depends on the

Question:
A system is said to be dynamic if the output of the system depends on the A. Past InputB. Future InputC. Present InputD. Present & Future Inputs

Question:
A system is said to be stable if the bounded input to the system produces

Question:
For a band pass signal extends from 1 KHz to 2 KHz. Then the minimum sampling frequency that needed to retain all information of the sampled signal is

Question:
Frequency and Time period are ______

Question:
Nyquist bit rate formula defines the theoretical maximum bit rate for which channel

Question:
Nyquist bit rate formula defines the theoretical maximum bit rate for which channel

Question:
The given system is characterized by the differential equation d2y(t)/dt2-dy(t)/dt-2y(t)= x(t). Then the system is:

Question:
The function which relates output of a system to the input(signal) of a system is

Question:
The Parseval's theorem states that the energy in the time-domain representation of a signal is equal to the energy in the frequency domain representation normalized by

Question:
Which of the following can weaken a signal

Question:
_________ is defined as any physical quantity that varies with time, space or any other independent variable