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Control Systems

Description: This quiz will test your knowledge of Control Systems.
Number of Questions: 15
Created by:
Tags: control systems mechanical engineering
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What is the primary function of a control system?

  1. To maintain a desired output

  2. To measure and adjust inputs

  3. To provide feedback

  4. To control the flow of information

Show answer
Correct Option: A
Explanation:

The primary function of a control system is to maintain a desired output by comparing the actual output to the desired output and making adjustments to the input to minimize the error.

Which of the following is not a type of control system?

  1. Open-loop control system

  2. Closed-loop control system

  3. Feedback control system

  4. Adaptive control system

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Correct Option: C
Explanation:

Feedback control system is not a type of control system. It is a type of closed-loop control system.

In a closed-loop control system, the output is:

  1. Compared to the input

  2. Compared to the desired output

  3. Compared to the error

  4. Compared to the reference input

Show answer
Correct Option: B
Explanation:

In a closed-loop control system, the output is compared to the desired output to determine the error.

The transfer function of a control system is:

  1. The ratio of the output to the input

  2. The ratio of the error to the input

  3. The ratio of the output to the error

  4. The ratio of the input to the error

Show answer
Correct Option: A
Explanation:

The transfer function of a control system is the ratio of the output to the input.

The stability of a control system is determined by:

  1. The location of the poles of the transfer function

  2. The location of the zeros of the transfer function

  3. The gain of the system

  4. The phase margin of the system

Show answer
Correct Option: A
Explanation:

The stability of a control system is determined by the location of the poles of the transfer function.

The response of a control system to a step input is called:

  1. Transient response

  2. Steady-state response

  3. Frequency response

  4. Impulse response

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Correct Option: A
Explanation:

The response of a control system to a step input is called transient response.

The response of a control system to a sinusoidal input is called:

  1. Transient response

  2. Steady-state response

  3. Frequency response

  4. Impulse response

Show answer
Correct Option: C
Explanation:

The response of a control system to a sinusoidal input is called frequency response.

The bandwidth of a control system is:

  1. The range of frequencies over which the system is stable

  2. The range of frequencies over which the system has a constant gain

  3. The range of frequencies over which the system has a constant phase

  4. The range of frequencies over which the system has a constant time delay

Show answer
Correct Option: A
Explanation:

The bandwidth of a control system is the range of frequencies over which the system is stable.

The gain margin of a control system is:

  1. The amount of gain that can be added to the system before it becomes unstable

  2. The amount of gain that can be removed from the system before it becomes unstable

  3. The amount of phase that can be added to the system before it becomes unstable

  4. The amount of phase that can be removed from the system before it becomes unstable

Show answer
Correct Option: A
Explanation:

The gain margin of a control system is the amount of gain that can be added to the system before it becomes unstable.

The phase margin of a control system is:

  1. The amount of phase that can be added to the system before it becomes unstable

  2. The amount of phase that can be removed from the system before it becomes unstable

  3. The amount of gain that can be added to the system before it becomes unstable

  4. The amount of gain that can be removed from the system before it becomes unstable

Show answer
Correct Option: A
Explanation:

The phase margin of a control system is the amount of phase that can be added to the system before it becomes unstable.

The Nyquist stability criterion is used to:

  1. Determine the stability of a control system

  2. Determine the bandwidth of a control system

  3. Determine the gain margin of a control system

  4. Determine the phase margin of a control system

Show answer
Correct Option: A
Explanation:

The Nyquist stability criterion is used to determine the stability of a control system.

The Bode plot is used to:

  1. Determine the frequency response of a control system

  2. Determine the stability of a control system

  3. Determine the bandwidth of a control system

  4. Determine the gain margin of a control system

Show answer
Correct Option: A
Explanation:

The Bode plot is used to determine the frequency response of a control system.

The root locus plot is used to:

  1. Determine the stability of a control system

  2. Determine the bandwidth of a control system

  3. Determine the gain margin of a control system

  4. Determine the phase margin of a control system

Show answer
Correct Option: A
Explanation:

The root locus plot is used to determine the stability of a control system.

The state-space representation of a control system is:

  1. A set of differential equations that describe the system

  2. A set of algebraic equations that describe the system

  3. A set of transfer functions that describe the system

  4. A set of block diagrams that describe the system

Show answer
Correct Option: A
Explanation:

The state-space representation of a control system is a set of differential equations that describe the system.

The transfer function of a control system can be obtained from the:

  1. State-space representation of the system

  2. Block diagram of the system

  3. Frequency response of the system

  4. Root locus plot of the system

Show answer
Correct Option: A
Explanation:

The transfer function of a control system can be obtained from the state-space representation of the system.

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