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Control-systems Questions Set 5:

Quiz Mode

If the percentage overshoot (% OS) of a second-order system is 40%, then its damping ratio (ζ) is:

0.28

0.56

0.14

0.5

Solution:

Which of the following is a property of negative feedback?

Increase in gain

Gain sensitization

Increased bandwidth

All of the above

Solution:

In a bode magnitude plot, which one of the following slopes(dB/decade) would be exhibited at high frequencies by a 4th order all-pole system ?

Solution:

The unit step response of a system starting from rest is given by c(t)= 1 – e^-2t (t>=0) , the transfer function of the system is

1/s+2

1/s+6

2/s+2

2/s+6

Solution:

Calculate the settling time with 2% tolerance for a second-order unit step input with ζ = 0.5 and ω_n = 200 rad/sec.

0.004 sec

0.04 sec

0.4 sec

1 sec

4 sec

Solution:

A Control System with excessive noise, is likely to suffer from which of the following?

Oscillations

Saturation in amplifying stages

Loss of gain

Vibrations

Solution:

The output of the feedback control system must be a function of ____________

Output and feedback signal

Input and feedback signal

Reference input

Reference output

Solution:

Find the delay time (in seconds) of a second-order system having damping ratio (ζ) = 0.5 and natural frequency (ω_n) = 4 rad/sec (rounded to two decimal places).

0.33 seconds

0.33 milliseconds

0.33 microseconds

Solution:

Consider a linear system that is equivalently represented by two sets of state equations as follows:

X = AX + BU

W = CW + DU

If the eigenvalues of the representation are computed as λ and μ, which of the following equations holds true?

λ = μ and X = W

λ = μ and X ≠ W

λ ≠ μ and X = W

λ ≠ μ and X ≠ W

Solution:

In a signal-flow graph, a loop is a

closed path that originates and terminates on the same node and along the path no node meets twice

closed path that originates and terminates on the same node and along the path not more than one node meets

closed path forming the feedback loop

closed path that originates at the input node and terminates at the output node

Control-systems Questions Set 5:

If the percentage overshoot (% OS) of a second-order system is 40%, then its damping ratio (ζ) is:

Solution:

Which of the following is a property of negative feedback?

Solution:

In a bode magnitude plot, which one of the following slopes(dB/decade) would be exhibited at high frequencies by a 4th order all-pole system ?

Solution:

The unit step response of a system starting from rest is given by c(t)= 1 – e^-2t (t>=0) , the transfer function of the system is

Solution:

Calculate the settling time with 2% tolerance for a second-order unit step input with ζ = 0.5 and ω_n = 200 rad/sec.

Solution:

A Control System with excessive noise, is likely to suffer from which of the following?

Solution:

The output of the feedback control system must be a function of ____________

Solution:

Find the delay time (in seconds) of a second-order system having damping ratio (ζ) = 0.5 and natural frequency (ω_n) = 4 rad/sec (rounded to two decimal places).

Solution:

Consider a linear system that is equivalently represented by two sets of state equations as follows:

X = AX + BU

W = CW + DU

If the eigenvalues of the representation are computed as λ and μ, which of the following equations holds true?

Solution:

In a signal-flow graph, a loop is a

Solution:

Related Question Sets:

Related Topics:

Control-systems Questions Set 5:

If the percentage overshoot (% OS) of a second-order system is 40%, then its damping ratio (ζ) is:

Solution:

Which of the following is a property of negative feedback?

Solution:

In a bode magnitude plot, which one of the following slopes(dB/decade) would be exhibited at high frequencies by a 4th order all-pole system ?

Solution:

The unit step response of a system starting from rest is given by c(t)= 1 – e^-2t (t>=0) , the transfer function of the system is

Solution:

Calculate the settling time with 2% tolerance for a second-order unit step input with ζ = 0.5 and ωn = 200 rad/sec.

Solution:

A Control System with excessive noise, is likely to suffer from which of the following?

Solution:

The output of the feedback control system must be a function of ____________

Solution:

Find the delay time (in seconds) of a second-order system having damping ratio (ζ) = 0.5 and natural frequency (ωn) = 4 rad/sec (rounded to two decimal places).

Solution:

Consider a linear system that is equivalently represented by two sets of state equations as follows: X = AX + BU W = CW + DU If the eigenvalues of the representation are computed as λ and μ, which of the following equations holds true?

Solution:

In a signal-flow graph, a loop is a

Solution:

Related Question Sets:

Related Topics:

Calculate the settling time with 2% tolerance for a second-order unit step input with ζ = 0.5 and ω_n = 200 rad/sec.

Find the delay time (in seconds) of a second-order system having damping ratio (ζ) = 0.5 and natural frequency (ω_n) = 4 rad/sec (rounded to two decimal places).

Consider a linear system that is equivalently represented by two sets of state equations as follows:

X = AX + BU

W = CW + DU

If the eigenvalues of the representation are computed as λ and μ, which of the following equations holds true?