ACTUAL Exam Questions and CORRECT
Answers
When moisture exists in an operating system, what is most likely to occur? - CORRECT
ANSWER - Acid will form.
What factor(s) affects the speed of evacuation? - CORRECT 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? - CORRECT ANSWER - The vacuum indicator
shows you have reached & held the required finished vacuum.
The over-evacuation of a system: - CORRECT ANSWER - Does not occur.
The size (capacity) of the vacuum pump & the size of the suction line used will determine what?
- CORRECT ANSWER - The length of dehydration time.
A system is dehydrated to do what? - CORRECT ANSWER - Remove water & water
vapor.
To obtain an accurate vacuum reading during system evacuation, the system vacuum gauge
should be located: - CORRECT 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?
- CORRECT ANSWER - 0 psig