In a stable control system backlash can cause which of the following?(a) Underdamping(b) Overdamping(c) Poor stability at reduced values of open loop gain(d) Low-level oscillationsI got this question in final exam.I'd like to ask this question from Linear Approximation of the Non-Linear System in section Control System and Components of Control Systems

In a stable control system backlash can cause which of the following?(

1.	In a stable control system backlash can cause which of the following?(a) Underdamping(b) Overdamping(c) Poor stability at reduced values of open loop gain(d) Low-level oscillationsI got this question in final exam.I'd like to ask this question from Linear Approximation of the Non-Linear System in section Control System and Components of Control Systems
Answer» Correct CHOICE is (d) LOW-level oscillations The explanation is: In STABLE control systems backlash is the form of the error which may cause low level of the oscillations and hence can be useful SOMETIMES as it INCREASES the damping.

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