A) Improper disposal of oil. B) Knowingly venting refrigerant (Clean Air Act). C) Overcharging the system. D) Cross-contamination of oil.
If a refrigeration system uses a low-pressure control (LPCO) for pump-down, the control is typically located: a) On the high side, before the receiver b) On the low side, after the evaporator c) At the compressor discharge line d) On the liquid line after the filter-drier cfesa refrigeration practice test
Download the official CFESA Certification Matrix from the CFESA website. Focus 70% of your study time on troubleshooting (Section 4 of this test) and 30% on theory. Good luck, technician—the industry needs your skills. A) Improper disposal of oil
The practice test typically includes questions on topics such as: D) Cross-contamination of oil
A) The compressor runs quietly but inefficiently. B) The compressor draws high amperage, vibrates, and trips the overload within seconds. C) The compressor runs backwards. D) The condenser fan runs faster.