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Signals-and-systems Questions Set 58:

Quiz Mode

y[n] = x[2n+1], where x[n] is a ramp signal.

What is the value of y[n] when n=4?

Solution:

How is the convolution integral of signals represented?

x(t)+h(t)

x(t)-h(t)

x(t)*h(t)

x(t)**h(t)

Solution:

If x(-t) = -x(t), then the signal is said to be _____________

Even signal

Odd signal

Non-periodic signal

Periodic signal

Solution:

Which of the following is used to describe continuous-time physical systems?

Differential equation

Both 1 and 2

None of the above

Difference equation

Solution:

The signal y[n] = ax[n] + bx[n+m] + c*x[n-k] is a system that is:

causal and memoryless

non-causal and has memory

non-causal and memoryless

causal and has memory

Solution:

Statement: The Discrete-Time Fourier Transform (DTFT) is the Fourier Transform of an aperiodic discrete-time signal.

The statement is true

The statement is false

The statement is partially true

Cannot be commented on

Solution:

In a standing wave pattern on a transmission line:

Voltage and current nodes coincide.

Voltage and current antinodes coincide.

Voltage nodes and current antinodes, as well as current nodes and voltage antinodes, coincide.

Both (a) and (b).

Solution:

The open-loop transfer function of a plant is given as G(s) = 1/(s² - 1). If the plant is operated in a unity feedback configuration, then the lead compensator that stabilizes this control system is:

10(s - 1)/(s + 2)

10(s + 4)/(s + 2)

10(s + 2)s + 10

Solution:

Which of the following statements about odd signals is false?

The signal must be zero at t=0

It is antisymmetric about the origin

The area under one side of the curve is 2 times as that on the other side

The value at time t is the negative of the value at -t

Solution:

A modulating signal 5cos(2π×15×10³t) angle modulates a carrier Acos(ω_ct). Determine the change in bandwidth if the frequency deviation is reduced to 5 kHz. What is the conclusion of the two results? (Assume k_f = 15 kHz)

Bandwidth remains the same with FM

Bandwidth changes slightly with FM

Bandwidth does not change slightly with FM

Bandwidth changes averagely with FM

Signals-and-systems Questions Set 58:

y[n] = x[2n+1], where x[n] is a ramp signal.

What is the value of y[n] when n=4?

Solution:

How is the convolution integral of signals represented?

Solution:

If x(-t) = -x(t), then the signal is said to be _____________

Solution:

Which of the following is used to describe continuous-time physical systems?

Solution:

The signal y[n] = ax[n] + bx[n+m] + c*x[n-k] is a system that is:

Solution:

Statement: The Discrete-Time Fourier Transform (DTFT) is the Fourier Transform of an aperiodic discrete-time signal.

Solution:

In a standing wave pattern on a transmission line:

Solution:

The open-loop transfer function of a plant is given as G(s) = 1/(s² - 1). If the plant is operated in a unity feedback configuration, then the lead compensator that stabilizes this control system is:

Solution:

Which of the following statements about odd signals is false?

Solution:

A modulating signal 5cos(2π×15×10³t) angle modulates a carrier Acos(ω_ct). Determine the change in bandwidth if the frequency deviation is reduced to 5 kHz. What is the conclusion of the two results? (Assume k_f = 15 kHz)

Solution:

Related Question Sets:

Related Topics:

Signals-and-systems Questions Set 58:

y[n] = x[2n+1], where x[n] is a ramp signal. What is the value of y[n] when n=4?

Solution:

How is the convolution integral of signals represented?

Solution:

If x(-t) = -x(t), then the signal is said to be _____________

Solution:

Which of the following is used to describe continuous-time physical systems?

Solution:

The signal y[n] = a*x[n] + b*x[n+m] + c*x[n-k] is a system that is:

Solution:

Statement: The Discrete-Time Fourier Transform (DTFT) is the Fourier Transform of an aperiodic discrete-time signal.

Solution:

In a standing wave pattern on a transmission line:

Solution:

The open-loop transfer function of a plant is given as G(s) = 1/(s2 - 1). If the plant is operated in a unity feedback configuration, then the lead compensator that stabilizes this control system is:

Solution:

Which of the following statements about odd signals is false?

Solution:

A modulating signal 5cos(2π×15×103t) angle modulates a carrier Acos(ωct). Determine the change in bandwidth if the frequency deviation is reduced to 5 kHz. What is the conclusion of the two results? (Assume kf = 15 kHz)

Solution:

Related Question Sets:

Related Topics:

y[n] = x[2n+1], where x[n] is a ramp signal.

What is the value of y[n] when n=4?

The signal y[n] = ax[n] + bx[n+m] + c*x[n-k] is a system that is:

The open-loop transfer function of a plant is given as G(s) = 1/(s² - 1). If the plant is operated in a unity feedback configuration, then the lead compensator that stabilizes this control system is:

A modulating signal 5cos(2π×15×10³t) angle modulates a carrier Acos(ω_ct). Determine the change in bandwidth if the frequency deviation is reduced to 5 kHz. What is the conclusion of the two results? (Assume k_f = 15 kHz)