Chapter 10 STABILITY ANALYSIS
Check Your Reading Study Questions Thought Questions
The questions will be categorized according to the key concepts in the Chapter.
Stability  Robustness 
Stability Tests 
Controller Tuning 
Check Your Reading 
Solidify the Concepts 
10.1 Which of the following best describes the importance of stability in process control? 

10.2 Why do we use linear models to investigate the stability of (nonlinear) systems? 

10.3 One test for stability: We evaluate the poles (roots of the denominator), and if a real part is negative, the system is unstable. 


10.4 Which elements in the loop affect stability? 

10.5 In an unstable chemical process, 

10.6 The Bode method is emphasized (over direct evaluation of the poles) because, 

10.7 For the process shown below, identify some variables that are stable and some that are unstable. 
