Question

a student claims that feedback always improves system performance. under what circumstances might this claim be incorrect? when feedback is too slow or creates system instability feedback always improves performance when the output is undesired when the system has too many inputs in a modern car, the anti - lock braking system (abs) prevents wheel lockup by rapidly pulsing the brakes. this system primarily demonstrates which relationship between components? process determining control mechanisms output influencing input selection input directly controlling output feedback information rapidly adjusting control actions

Explanation:

1. For the first question, if feedback is too slow, the system may not be able to react in a timely - manner. Also, if feedback causes instability, it can deteriorate system performance instead of improving it.
2. For the second question, the ABS system in a car uses feedback from the wheel's rotational speed. If it detects that a wheel is about to lock (output), it rapidly adjusts the braking force (control actions) using feedback information.

Answer:

1. When feedback is too slow or creates system instability
2. Feedback information rapidly adjusting control actions