Which of the following is incorrect for a close loop system ? a. Automatic Control system b. Use feedback element c. No comparison element d. Have feedback
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Q: 6. Compare and contrast the Closed and Open loop Control System
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Q: c)What is the role of error detector and feedback in a closed-loop control system?
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Q: discuss the application of nyquist criterion to determine stability of a closed loop control system
A: Nyquist criterion: Nyquist criterion is a tool widely used to determine the stability of a system.
Q: Compare and contrast the Closed and Open loop Control System
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Q: .What the advantages of a closed-loop control system?
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Q: (a) List the advantages and disadvantages of an open loop control system.
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Q: Compare and contrast the Closed and Open loop Control System
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Q: State and explain various test inputs in control systems.
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Q: What are the advantages of an open-loop control system?
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Q: Draw the block diagram of a closed loop control system. Label completely.
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- 3. What’s Control Machine Feedback? What are its features?It is a control system in which the control action is independent of the output. A.)closed loop system B.)cascade control system C.)feedback control system D.) open loop system8. The output of a feedback control system must be a function of a. reference and output b. reference and input c. input and feedback signal d. output and feedback signal 10. For open control system which of the following statements is incorrect? a. Less expensive b. Recalibration is not required for maintaining the required quality of the output c. Construction is simple and maintenance easy d. Errors are caused by disturbances 11.the closed loop system is. a. Autopilot for an aircraft c. Car starter b. Direct current generator d. Electric switch 12. In regenerating the feedback, the transfer function is given by a. C(s)/R(s)-G(s)/I+G(s)H(s) b. C(s)/R(s)=G(s)H(s)/1-G(s)H(s) c. C(s)/R(s)=G(s)/1+G(s)H(s) d. C(s)/R(s)=G(s)/1-G(s)H(s)
- 6. Which among the following is not an advantage of an open loop system? a. Simplicity in construction & design b. Easy maintenance c. Rare problems of stability d. Requirement of system recalibration from time to time 7. Match the following notations with their meanings: - 1) Laplace of error signal - 2) Laplace of output signal. - 3) Forward transfer function. - 4) Feedback transfer function G(s)- В. H(s) C(s) А. С. D. E(s) а. А- 2, В-3, С- 1, D- 4 с. А- 2, В- 3, С-4, D- 1 b. А-3, В-4, С- 2, D- 1 d. A- 1, B- 2, С- 3, D-4What is feedback system for automatic control of physical quantities? Explain?This Question is related to feedback control system What are the different options to reject disturbances on a system? Comment briefly on feasibility of each case.
- Discuss about Power Thyristor's DC and Ac switching.(with Diagram)Draw the Cascade control scheme for jacketed reactor in which hot oilis supplied to the jacket. Reactor temperature is the primary variable andjacket temperature is the secondary variable and explains why cascade control is better than the conventional single loop feedback control with this example?QUESTION 1 Vehicle steering control is one of an example of feedback control system that involving human and machine/plant. i. Explain the advantages of feedback control system. Sketch the closed loop system block diagram for vehicle steering control. 11.
- How do you obtain the combined close-loop system?Consider the following closed-loop discrete control system depictured in Figure 1. a)Determine the closed-loop system transfer function.Unit step function input to the system in the figure and proportional What are the values of the following transient response specifications when the control (K = 50) is applied? a. It's time to rise b. Time to reach the maximum, c. maximum exceed D. Settling time (by 2% criterion).