Engineers design a system for heating the air in a house. They want the
heater to bring the temperature to a comfortable level and then maintain it.
Which option describes how the engineers should design the system?
O A. Include a control in the system that minimizes the difference
between the amounts of input and output.
B. Build in a control that uses negative feedback to minimize the
amount of change in the system.
C. Build a control into the system that causes input to always be
slightly less than output.
D. Include a control in the system that provides positive feedback
between the input and the output.
SUBMIT
