EPA 608 (CORE) Exam| 25 Questions| Correct Answers| Verified!!

When moisture exists in an operating system, what is most likely to occur? - ANSWER Acid will form. What factor(s) affects the speed of evacuation? - ANSWER 1) The size of the equipment being evacuated. 2)The ambient temperature. 3) The amount of moisture in the system A system is considered dehydrated when? - ANSWER The vacuum indicator shows you have reached & held the required finished vacuum. The over-evacuation of a system: - ANSWER Does not occur. The size (capacity) of the vacuum pump & the size of the suction line used will determine what? - ANSWER The length of dehydration time. A system is dehydrated to do what? - ANSWER Remove water & water vapor. To obtain an accurate vacuum reading during system evacuation, the system vacuum gauge should be located: - ANSWER As far from the vacuum pump as possible. To scrap a disposable cylinder, the internal cylinder pressure should be reduced to at least what? - ANSWER 0 psig Never use an open flame to heat a refrigerant tank because? - ANSWER 1) It can result