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Consider the following statements:
1. Flywheel and governor of an engine are the examples of an open loop control system
2. Governor is the example of closed loop control system
3. The thermostat of a refrigerator and relief valve of a boiler are the examples of closed loop control system
Which of these statements is/are correct?
  • a)
    1 only
  • b)
    2 and 3
  • c)
    3 only
  • d)
    2 only
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements:1. Flywheel and governor of an engin...
Closed Loop and Open Loop Control Systems

Closed loop and open loop control systems are the two types of control systems used in engineering. A closed loop control system is a system in which the output is controlled by measuring the feedback and comparing it with the desired output. An open loop control system is a system in which the output is not controlled by feedback.

Examples

1. Flywheel and governor of an engine are the examples of an open loop control system
2. Governor is the example of closed loop control system
3. The thermostat of a refrigerator and relief valve of a boiler are the examples of closed loop control system

Explanation

Statement 1: Flywheel and governor of an engine are the examples of an open loop control system.

This statement is incorrect. The flywheel and governor of an engine are examples of closed loop control systems. The governor controls the engine speed by measuring the feedback from the engine and adjusting the fuel supply accordingly.

Statement 2: Governor is the example of closed loop control system.

This statement is correct. The governor is an example of a closed loop control system. The governor measures the feedback from the engine and adjusts the fuel supply to maintain the desired engine speed.

Statement 3: The thermostat of a refrigerator and relief valve of a boiler are the examples of closed loop control system.

This statement is correct. The thermostat of a refrigerator and relief valve of a boiler are examples of closed loop control systems. The thermostat measures the temperature inside the refrigerator and adjusts the cooling system to maintain the desired temperature. The relief valve of a boiler measures the pressure inside the boiler and adjusts the steam flow to maintain the desired pressure.

Conclusion

In summary, statement 1 is incorrect, statement 2 is correct, and statement 3 is correct. The governor, thermostat, and relief valve are all examples of closed loop control systems.
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Community Answer
Consider the following statements:1. Flywheel and governor of an engin...
2 & 3
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Consider the following statements:1. Flywheel and governor of an engine are the examples of an open loop control system2. Governor is the example of closed loop control system3. The thermostat of a refrigerator and relief valve of a boiler are the examples of closed loop control systemWhich of these statements is/are correct?a)1 onlyb)2 and 3c)3 onlyd)2 onlyCorrect answer is option 'C'. Can you explain this answer?
Question Description
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