21. Which of the following statements is correct for any closed loop system ?
22. In a system zero initial condition means that
23. Any externally introduced signal affecting the controlled output is called a
24. Technique gives quick transient and stability response
25. A control system in which the control action is somehow dependent on the output is known as
26. Increases the steady state accuracy.
27. If the gain of the critical damped system is increased it will behave as
28. In an automatic control system which of the following elements is not used ?
29. A car is running at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?
30. Which of the following can be measured by the use of a tachogenerator ?
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