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Questions and Answers
Which of the following statements is true about feedback in control systems?
Which of the following statements is true about feedback in control systems?
- Feedback can reduce the effect of noise and disturbance on system performance (correct)
- Feedback is always harmful if not properly applied
- Feedback has no effect on system performance
- Feedback always improves stability.
What is the ideal sensitivity of the system gain in a feedback system?
What is the ideal sensitivity of the system gain in a feedback system?
- The sensitivity should be high for both input commands and parameter variations.
- The sensitivity should be sensitive to input commands but insensitive to parameter variations. (correct)
- The sensitivity should be low for both input commands and parameter variations.
- The location of the parameter does not affect the sensitivity.
What is the purpose of control systems?
What is the purpose of control systems?
- To be insensitive to input commands.
- To be designed without feedback loops.
- To control the input and output of a system. (correct)
- To manage or regulate the behavior of other devices using control loops.
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Study Notes
- Control system is a system that controls the output by varying the input.
- Feedback in control systems can improve stability or be harmful if not properly applied.
- Feedback can reduce the effect of noise and disturbance on system performance.
- The sensitivity of the system gain in a feedback system depends on the location of the parameter.
- A good control system is sensitive to input commands but insensitive to parameter variations.
- It is not good for a control system to be insensitive to input commands.
- Control systems can be positive or negative feedback systems.
- Control systems do not manage or regulate the behavior of other devices using control loops.
- The input and output are controlled in a control system.
- Control systems are designed to regulate and control processes.
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