Chapter 13 FEEDBACK PERFORMANCE
Check Your Reading Study Questions Thought Questions
The questions will be categorized according to the key concepts in the Chapter.
PROCESS FACTORS  CONTROL SYSTEMS FACTORS 
FREQUENCY RESPONSE 
DYNAMIC SIMULATION 
Check Your Reading 
Solidify the Concepts 
13.1 Which of the following are considered when evaluating control performance? 

13.2 A dynamic simulation is limited to linear process models and controller calculations. 
Dynamic Simulation 
13.3 We can perform a dynamic simulation of a control system for which of the following inputs? 
Dynamic simulation 
13.4 Frequency response calculations are limited to linear process models and controllers. 
Frequency response 
NOTE: When we say "frequency response" here, we mean the simplified calculation by setting s = jw in the transfer function, for example,

13.5 The closed loop frequency response for a proportional only controller is given in the equation below. We conclude that as the controller gain (Kc) goes to infinity, the performance becomes very good, CV(jw)goes to 0.0 
Frequency Response 
Frequency response for closedloop:

13.6 A Bode Plot below shows the amplitude of the output for a specific value of the input frequency. 
Frequency Response 
13.7 Which of these control loop element dynamics affect control performance? 
Loop Elements 
Engineers must select the appropriate equipment for each element. 