Question 1
The time-based dependence of a system's output on present and past inputs (its "memory") is known as:
a) Memory
b) Gain
c) Hysteresis
d) Sampling period
Question 2
Identify the following features of the chart shown:
a) Upper control limit (UCL)
b ) Lower control limit (LCL)
c) Error
d) Setpoint
Question 3
The setpoint, provided by your instructor, will be:
a) in salinity percentage
b) always the same as the current salinity concentration
c) in arduino reading
d) always above the UCL
Question 4
PID is a common acronym in control theory. In PID, the letter "P" stands for:
a) Power
b) Phase
c) Process
d) Proportional
Question 5
In the fishtank system, one reasonable assumption might be:
a) The difference in density between the incoming and outgoing water is negligible.
b) The salinity of the water in the fishtank will never exceed 15%
c) Your instructor will grade you leniently
d) The UCL will always be at least 2.5V higher than the the LCL.