Which of the following isn't a step in the Design Process? A) Generate Concepts
B) Develop a Solution
C) Define the Problem
D) Evaluate the Solution
E) None of the above

Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)