Control systems miscellaneous Easy Questions and Answers

Control systems miscellaneous

Sinusoidal oscillators are—

Correct Option: B

Which one of the four signals flow graphs shown in (A), (B), (C) and (D) represents the block diagram shown in given figure?Kindle Edition.

On drawing the signal flow graph from the given block diagram, we get
Hence alternative (A) is the correct answer.

Correct Option: A

On drawing the signal flow graph from the given block diagram, we get
Hence alternative (A) is the correct answer.

Consider the following properties attributed to state model of a system
1. State model is unique
2. State model can be derived from the system transfer function
3. State model can be derived from time variant systems. Of these statements—

State model of a system is not unique.

Correct Option: C

State model of a system is not unique.

For a gain constant K, the phase-lead compensator—

For a constant gain, the phase lead compensator reduces the slope of the magnitude curve in the entire range of frequency domain. For more detail refer synopsis.

Correct Option: A

For a constant gain, the phase lead compensator reduces the slope of the magnitude curve in the entire range of frequency domain. For more detail refer synopsis.

Consider the following statements regarding time-domain analysis of a control system
1. Derivative control improves system’s transient performance
2. Integral control does not improve system’s steady state performance
3. Integral control can convert a second order system into a third order system. Of these statements—

For more detail refer synopsis of integral and derivative control action.

Correct Option: B

For more detail refer synopsis of integral and derivative control action.