Process control Flashcards
Which part of the controller would be the “target” or “desired value”?
process variable
manipulated variable
setpoint
answer C
Which part of the controller would be the “measurement”?
process variable
Manipulated variable
set point
answer: A
Which part of the controller would be the “output”?
manipulated variable
process variable
setpoint
answer A
Which part of the PID algorithm addresses primarily “How far away” the process variable is from setpoint?
derivative
integral
proportional
answer C
Which part of the PID algorithm addresses primarily “how much time” the process variable has stayed away from setpoint?
derivative
integral
proportional
answer B
Which part of the PID algorithm addresses primarily “how fast the process variable is changing”?
derivative
integral
proportional
answer A
Higher gains make the controller “more aggressive” in reaching the setpoint
true
false
answer true
Which would make a controller more stable, with less tendency to “overshoot
reducing gain
increasing the gain
answer A
When a controller is in “Auto”, which value does the operator change?
manipulated variable
process variable
setpoint
answer C
When a controller is in “Manual”, which value does the operator change?
process variable
manipulated variable
setpoint
answer C
open more
close more
stay the same
answer open more
close more
stay in the same positom
open more
answer open more
If you have a level-master flow-slave cascade controller, which is true about how the controllers interact?
The output of the level controller is the setpoint to the flow controller
The output of the flow controller is the setpoint to the level controller
Answer A
