Question $4$

a thermostat in a house is used an example of a feedback control mechanism. This is

appropriate, because

everyone has used a thermostat

it periodically turn on$/$off based on a timer

the thermostat can decide when to act by comparing performance now to performance

before

No$.$ Please re$-$read section $9\mathrm{.}3\mathrm{.}1$

Setting the thermostat temperature and its ability to sense the actual temperature and turn

on$/$off means it meets both feedback control principles