Moisture in a system reacts with refrigerant to form _____.
a. an azeotrope
b. hydrochloric and hydrofluoric acids
c. a non-condensable contaminant
d. nitrogen
Question 2
A vacuum pump with a capacity of 6 to 12 cfm should be adequate to evacuate systems with capacities up to
_____.
a. 10 tons
b. 30 tons
c. 50 tons
d. 100 tons