ESCO EPA TYPE III PRACTICE TEST
QUESTIONS WITH CORRECT ANSWERS
To repair a chiller operating with R-22, the technician; - correct answer -must have a Type II certification.
What can be used to pressurize a chiller system before opening the system for a non-major repair? -
correct answer -Controlled hot water
A low-pressure chiller used for comfort cooling must be repaired if it has an annual leak rate of ____ of
the total charge. - correct answer -10 percent
When pressurizing a low-pressure system for leak-detection purposes, do not exceed - correct answer -
10 psig
Which of the following best describes the refrigerant recovery process from an R-123 system? - correct
answer -Start with liquid removal and then switch over to vapor recovery.
The Standard for machine room safety is; - correct answer -ASHRAE-15
The owner must keep records of refrigerant added to a low-pressure system during service and
maintenance if the system charge is; - correct answer -50 pounds or greater.
The EPA-required evacuation level for recovery or recycling equipment used on low-pressure systems is
- correct answer -25 mm of Hg absolute.
When charging a low-pressure system, refrigerant should be introduced to the system as a vapor to
raise the system's saturation temperature to a minimum of; - correct answer -36 degrees.
When installing more than one, pressure relief valves must be installed; - correct answer -in parallel with
each other.
