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Which of the following is a disadvantage of open-loop systems?

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Question: Which of the following is a disadvantage of open-loop systems?

Options:

  1. They are simple to design.
  2. They can be less expensive.
  3. They cannot correct for disturbances.
  4. They are always stable.

Correct Answer: They cannot correct for disturbances.

Solution: 

Open-loop systems cannot correct for disturbances, making them less robust compared to closed-loop systems.

Which of the following is a disadvantage of open-loop systems?

Practice Questions

Q1
Which of the following is a disadvantage of open-loop systems?
  1. They are simple to design.
  2. They can be less expensive.
  3. They cannot correct for disturbances.
  4. They are always stable.

Questions & Step-by-Step Solutions

Which of the following is a disadvantage of open-loop systems?
  • Step 1: Understand what an open-loop system is. It is a type of control system that does not use feedback to determine if the output is correct.
  • Step 2: Recognize that open-loop systems operate on a set input and produce an output without checking if the output is affected by any disturbances.
  • Step 3: Identify that a disturbance is any unexpected change that can affect the output of the system.
  • Step 4: Realize that because open-loop systems do not monitor their output, they cannot adjust or correct themselves if something goes wrong.
  • Step 5: Compare this to closed-loop systems, which can adjust their output based on feedback, making them more robust.
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