Question

Think about your house or apartment furnace as a negative feedback control system. In a particularly cold week in January, you are using both the house heater AND a space heater in the same room where the thermostat is located. What happens to your house furnace when the room gets too warm from the space heater?

1) The furnace will turn off permanently because it is no longer needed
2) The furnace will continue to heat the entire house because the source of the "extra" heat (the space heater) isn't part of the negative feedback system
3) The furnace will turn off temporarily (as long as the room temp is too high) and will turn on again when the room temperature falls below the set point

Answer 1

In a negative feedback control system, the house furnace will temporarily turn off when the room gets too warm from the space heater and turn on again when the room temperature falls below the set point.

Step-by-step explanation:

In a negative feedback control system, such as a house furnace, the furnace is designed to maintain a set temperature. When the room gets too warm from the space heater, the furnace will temporarily turn off. This is because the thermostat senses that the room temperature has exceeded the set point and signals the furnace to stop heating. Once the room temperature falls below the set point, the furnace will turn on again to continue heating the house.