EPA Section 608 Certification Quiz

Where does the refrigerant go after leaving the compressor?

• Evaporator

• Condenser

• Metering Device

• Liquid Receiver

What is the purpose of the metering device in the refrigeration cycle?

• To heat the refrigerant

• To increase the pressure of the refrigerant

• To reduce the pressure of the liquid refrigerant

• To store the refrigerant

What is the dividing point between the low-pressure and high-pressure sides of the system?

• Compressor

• Evaporator

• Metering Device

• Condenser

What could happen if a hermetic compressor is operated with a vacuum in the system?

• Increase in refrigerant charge

• Electrical arcing inside the compressor

• Decrease in system temperature

• Increase in system pressure

What is one of the most serious health effects from the thinning of the ozone layer?

• Increase in lung cancer

• Increase in skin cancer

• Increase in heart disease

• Increase in diabetes

What is the ASHRAE safety group classification for high flammability and low toxicity?

• A1

• A3

• B1

• B3

What is the consequence of venting refrigerant from a recovery machine?

• It is illegal

• It is recommended

• It is safe

• It is cost-effective

What does the term "recover" mean in the context of refrigerants?

• To extract refrigerant from an appliance

• To remove refrigerant and store it in an approved container

• To process refrigerant to a new specification

• To recycle refrigerant using oil separation

What is the consequence of mixing refrigerants in the same container?

• It can be reclaimed easily

• It may be impossible to reclaim

• It reduces recovery time

• It meets AHRI standards

What should newly installed systems be pressurized with for leak detection purposes?

• Dry-nitrogen

• Oxygen

• Carbon dioxide

• Helium