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Signals-and-systems Questions Set 32:

Quiz Mode

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

x(n)

-x(n)

-x(-n)

Solution:

f(t) = r(t+1) - r(t)

For t > 0, what is the form of f(t)?

Unit ramp

Unit step

Unit impulse

No signal

Solution:

If the Laplace transform of f(t) is F(s), what is the value of the Laplace transform of e^-atf(t)?

F(s+a)

F(s-a)

e^-asF(s)

e^asF(s)

Solution:

Find the convolution sum of sequences x1[n] = (1, 2, 1) and x2[n] = (2, 1, 3)

{2, 5, 7, 11, 3}

{3, 5, 11, 7, 2}

{2, 7, 12, 1, 5}

{2, 5, 7, 7, 3}

Solution:

If the gain margin of a certain feedback system is 20 dB, the Nyquist plot will cross the negative real axis at the point

s = -0.05

s = -0.2

s = -0.1

s = -0.01

Solution:

If an amplitude-modulated DSB-FC (Double Sideband - Full Carrier) wave, with 100% modulation, has a total transmitted power of 10kW, what would be the power of the Upper sidebands?

3.333kW

6.667kW

1.6665kW

2.57kW

Solution:

If the total transmitted power, Pt, of an amplitude modulated DSB-FC (Double Side Band- Full Carrier) wave, for 100% modulation, is 100kW, what will be the approximate power used by the carrier wave?

33.333kW

85kW

66.667kW

50kW

54.46kW

Solution:

The continuous time system described by the equation y(t) = x(t²) comes under which category?

causal, linear and time varying

causal, non-linear and time varying

non causal, non-linear and time-invariant

non causal, linear and time-variant

Solution:

consider a continuous-time system with input x(t) and output y(t) related by
y(t) = x(sin(t))
choose the correct option for the following system:

Its causal and linear.

Its causal and Non-Linear.

Its Non-causal and linear.

Its causal and Non-linear.

Solution:

When we take up design of systems, ideally how do we define the stability of a system?

A system is stable, if a bounded input gives a bounded output, for some values of the input

A system is stable, if a bounded input gives a bounded output, for all values of the input

A system is unstable, if a bounded input gives a bounded output, for some values of the input

Signals-and-systems Questions Set 32:

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

Solution:

f(t) = r(t+1) - r(t)

For t > 0, what is the form of f(t)?

Solution:

If the Laplace transform of f(t) is F(s), what is the value of the Laplace transform of e^-atf(t)?

Solution:

Find the convolution sum of sequences x1[n] = (1, 2, 1) and x2[n] = (2, 1, 3)

Solution:

If the gain margin of a certain feedback system is 20 dB, the Nyquist plot will cross the negative real axis at the point

Solution:

If an amplitude-modulated DSB-FC (Double Sideband - Full Carrier) wave, with 100% modulation, has a total transmitted power of 10kW, what would be the power of the Upper sidebands?

Solution:

If the total transmitted power, Pt, of an amplitude modulated DSB-FC (Double Side Band- Full Carrier) wave, for 100% modulation, is 100kW, what will be the approximate power used by the carrier wave?

Solution:

The continuous time system described by the equation y(t) = x(t²) comes under which category?

Solution:

consider a continuous-time system with input x(t) and output y(t) related by
y(t) = x(sin(t))
choose the correct option for the following system:

Solution:

When we take up design of systems, ideally how do we define the stability of a system?

Solution:

Related Question Sets:

Related Topics:

Signals-and-systems Questions Set 32:

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

Solution:

f(t) = r(t+1) - r(t) For t > 0, what is the form of f(t)?

Solution:

If the Laplace transform of f(t) is F(s), what is the value of the Laplace transform of e-atf(t)?

Solution:

Find the convolution sum of sequences x1[n] = (1, 2, 1) and x2[n] = (2, 1, 3)

Solution:

If the gain margin of a certain feedback system is 20 dB, the Nyquist plot will cross the negative real axis at the point

Solution:

If an amplitude-modulated DSB-FC (Double Sideband - Full Carrier) wave, with 100% modulation, has a total transmitted power of 10kW, what would be the power of the Upper sidebands?

Solution:

If the total transmitted power, Pt, of an amplitude modulated DSB-FC (Double Side Band- Full Carrier) wave, for 100% modulation, is 100kW, what will be the approximate power used by the carrier wave?

Solution:

The continuous time system described by the equation y(t) = x(t²) comes under which category?

Solution:

consider a continuous-time system with input x(t) and output y(t) related byy(t) = x(sin(t))choose the correct option for the following system:

Solution:

When we take up design of systems, ideally how do we define the stability of a system?

Solution:

Related Question Sets:

Related Topics:

f(t) = r(t+1) - r(t)

For t > 0, what is the form of f(t)?

If the Laplace transform of f(t) is F(s), what is the value of the Laplace transform of e^-atf(t)?

consider a continuous-time system with input x(t) and output y(t) related by
y(t) = x(sin(t))
choose the correct option for the following system: