An operating control, which consists of a hygroscopic element made of material similar to multiple strands of human hair, is called a:
a. Humidistat
b. Thermostat
c. Fluid expansion regulator
d. Pressurestat
e. Bimetal element
Answer: A
An operating control, which consists of a hygroscopic element made of material similar to multiple strands of human hair, is called a:
a. Humidistat
b. Thermostat
c. Fluid expansion regulator
d. Pressurestat
e. Bimetal element
Answer: A