Epa test stuvia - Study guides, Class notes & Summaries

Where do leaks commonly occur in low pressure systems? a. Evaporator b. Condenser c. Purge unit d. Gaskets or fittings - ANSWER d. Gaskets or fittings Where do leaks commonly occur in open-drive type compressor systems? a. Evaporator b. Condenser c. Shaft seal d. Cooling tower - ANSWER c. Shaft seal Does refrigerant go out of the system in low pressure systems or does air and moisture go in? a. Refrigerant escapes through low pressure leaks. b. Air and moisture enter the refrige...

Upon your release, a DoD Public Affairs Officer (PAO) will be available to help you. Their goal is to ________________. - ANSWER •Help you regain control over your life (correct) •Coordinate your interactions with the media (correct) The evasion plan of action (EPA) provides recovery forces the following information should you become isolated. - ANSWER •Your evasion intentions and key recovery information (correct) •It helps them to anticipate your actions and intentions (Correct) ...

The maximum test pressure for leak testing a low-pressure centrifugal chiller is - ANSWER 10 psig Excessive operation of a purge system means - ANSWER The system has a leak on the sub-ambient pressure side of the system For a commercial refrigeration system with a charge of 50 pounds or more refrigerant, a substantial (or threshold) week rate will be reduced to ________ after January 1, 2019. - ANSWER 20% For a comfort cooling system with a charge of 50 pounds or more of refrigerant, a ...

MVAC systems being disposed must be evacuated to _____ of mercury before being scrapped - Answer 4 inches R-134a is a chlorine-free refrigerant - Answer True Ozone Layer absorbs and scatters____ light from the sun - Answer Ultraviolet light Each chlorine ion is able to destroy ______ ozone molecules - Answer 100 thousand Ozone Depletion Potential ofb________ having been assigned a factor of 1 - Answer CFC-11 Ozone at ground levelof the Stratosphere is a harmful pollutant. T or F? ...

The maximum test pressure for leak testing a low-pressure centrifugal chiller is - ANSWER 10 psig Excessive operation of a purge system means - ANSWER The system has a leak on the sub-ambient pressure side of the system For a commercial refrigeration system with a charge of 50 pounds or more refrigerant, a substantial (or threshold) week rate will be reduced to ________ after January 1, 2019. - ANSWER 20% For a comfort cooling system with a charge of 50 pounds or more of refrigerant, a ...

Appliance - Answer any device that contains and uses a refrigerant for household or commercial purposes, including any air conditioner, refrigerator, chiller, or freezer. EPA interprets this definition to include all air-conditioning and refrigeration equipment except units designed and used exclusively for military purposes. Asphyxia - Answer the displacement of the oxygen in a room by the denser refrigerant Azeotrope - Answer a blend of two or more components whose equilibrium vapor phas...

The Evasion Plan of Action (EPA) provides recovery forces the following information should you become isolated. - ANSWER - Ensure you detail the factors concerning the methods and procedures you intend to use to communicate with recovery forces - It helps them to anticipate your actions and intentions should you become isolated - You evasion intentions and key recovery information The Code of Conduct is a ____________ for military members when isolated or held against their will by entities...

The use and release of CFCs and HCFCs has a far reaching effect on... - ANSWER The stratosphere Corp loss, eye disease and skin cancer have been attributed to: - ANSWER Depletion of Stratospheric ozone The chlorine in CFCs and HCFCs: - ANSWER will not dissolve in water Which of the following refrigerant has a GWP of "1"? - ANSWER R-1233zd A refrigerant cylinder designed to hold recovered refrigerant has a: - ANSWER Grey body and yellow top Before shipping any used refrigerant cy...

As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? - ANSWER July 1, 1992. What is the ozone layer and why is it important to us on Earth? - ANSWER Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that extends about 6 to 30 miles above earth. The atom found in CFC and HCFC refrigerants that destroys ozone in the stratosphere is? - ANSWER Chlorine. What is an ozone molecule made of? - A...

Technicians who perform sealed system service on small appliances must have; - ANSWER Type I or universal certification A small appliance is defined by EPA as; - ANSWER Appliances manufactured, charged, and hermetically sealed in a factory with 5 lbs or less of refrigerant Type I Certification is required for; - ANSWER Persons handling refrigerant during maintenance, service, or repair of small appliances. If regulations change after the technician becomes certified; - ANSWER The techni...