2025 WITH VERIFIED ACCURATE SOLUTIONS
1. According to EPA regulations, what is the threshold
annual leak rate for industrial refrigeration units that
necessitates repairs?
40%
30%
10%
20%
2. If a leaking appliance with a regulated refrigerant is
not going to be repaired, it must be;
retrofitted or retired within 3 months.
retrofitted or retired within 12 months.
replaced within 3
months. replaced
within 12 months.
3. Filter driers are normally designed to capture_.
Moisture
Particulates
, Organic
acids
None of the above
All of the above
4. What is the acceptable finishing vacuum measurement in
microns for a new installation or serviced refrigeration
system?
1000 Microns
500 Microns
, 2500 Microns
10000 Microns
5. The minimum microns a vacuum pump must pull when
evacuating a system?
500 microns
5000 microns
50,000 microns
500,000 microns
6. A high-pressure appliance containing 210 lbs. of R-407C
refrigerant must be evacuated (recovered) to a level of:
15 inches of vacuum
10 inches of
vacuum 4 inches
of vacuum 0
inches of vacuum
7. What is the state of a refrigerant as it exits a refrigeration
system's liquid receiver?
Low-Pressure
Liquid Low-
Pressure Gas