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EPA 608 Exam with Questions Correctly Answered!! Verified Answers
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EPA 608 Exam with Questions Correctly Answered!! Verified Answers
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EPA 608 Exam with Questions CorrectlyAnswered!! Verified Answers
What leak testing a low- pressure centrifugal chiller with nitrogen, what is that maximum
test pressure? - ANSWER 10 Psig
A hydrostatic tube test kit will: - ANSWER determine if a tube leaks
For what refrigerant is an equipment room refrigerant detector NOT required under ASHRAE
standard 15 to run continuously? - ANSWER R-717
Pressure relief valves can only be installed.... - ANSWER In parallel
To avoid freezing water in a R134a system during charging, the system should be
initially charged with vapor to what psig? - ANSWER 30 psig
Identify the best method to charge a system that has both an air cooled condenser and
evaporator with a nameplate of 80 lbs charge? - ANSWER Liquid charge though the liquid-line
service valve
, Before beginning a refrigerant recovery procedure, it is ALWAYS necessary to: - ANSWER Know
the type of refrigerant in the system
What are refrigeration abs air conditioners compressor heaters used for? - ANSWER To
reduce the amount of refrigerant in the oil
What component directly following the condenser in a refrigeration system using a TXV? -
ANSWER Receiver
What level of vacuum should be pulled when evacuating a vapor compression system to assure
all moisture has been removed? - ANSWER 500 microns
What is a deep vacuum usually measured in? - ANSWER Microns
Which of the following statements about recycling and recovery equipment used for
stationary refrigeration is FALSE? - ANSWER Purchases of equipment must be reported to EPA
Which of the following repairs would you always considered "major" under EPA regulations?
- ANSWER Replacement of an evaporator coil
When is it against EPA regulations to us system dependent recovery equipment? -
ANSWER When the appliance contains over 15 pounds of refrigerant
What should be done after reaching the required recovery vacuum on an appliance? - ANSWER
Wait a few minutes and see if the pressure rises (refrigerant trapped in oil)
You are changing out the compressor of a system containing 40lbs of 404a. In addition to
isolating the compressor, which of the following procedures should you follow? - ANSWER
Evacuate the isolated section of the system to 5" of inHg when the system's pressure rises
out of the vacuum, remove the compressor
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