1) In a thermostat control system for a home heating system,
a) identify the manipulated variable,
b) identify the control variable,
c) how is a valve involved in the control system? what does it manipulate?
Name one importance disturbance (it must change with respect to time)
2) In a kidney dialysis unit, identify the controlled, manipulated, ans disturbance variables. How does the length of time for the the dialysis treatment affect the waste concentration?