609 ESCO Exam Practice Questions and Answers 100% Pass

609 ESCO Exam Practice Questions and Answers 100% Pass Who Must Be Certified? Any person that services Motor Vehicle Air Conditioning (MVAC) must be certified. Servicing of motor vehicle air conditioning includes repairs, leak testing, and "topping off" of air conditioning systems low on refrigerant, as well as any other repair to the vehicle that requires dismantling any part of the air conditioner. NOTE: Service performed on HCFC-22 air conditioner systems typically found on busses, is NOT covered under section 609, but rather section 608 of the Clean Air Act. Technician certification IS required under section 608. For more information on Section 608 certification, contact The ESCO Institute at (800) 726-9696. Test Format The certification test contains 50 multiple-choice questions. All of the information necessary for the technician to achieve a passing score on the certification test is contained within this manual. The certification test will contain a variety of qu - Answer️️ -frist page Stratospheric Ozone Depletion During the last 100 years, refrigerants such as; CFCs, HCFCs, HFCs, and HFOs have dramatically changed our lifestyles. Little did we know that the use and release of these compounds into the atmosphere would have devastating effects on the Earth's environment. One of these effects is far removed from the Earth's surface, in the Stratosphere. Located between 7 and 30 miles above the Earth's surface, the Stratosphere contains the Ozone layer. The Ozone layer is the earth's security blanket. The Ozone layer serves two important functions. Ozone protects us from harmful Ultra Violet Radiation and helps to maintain stable Earth temperatures. Depletion of Ozone in the Stratosphere causes: Increased eye disease Skin cancer Crop loss Deforestation Reduced marine life Increased ground level ozone An Ozone molecule consists of three oxygen atoms (O3). When CFC's are released into the atmosphere, t - Answer️️ -2nd page Montreal Protocol The Montreal Protocol is an international agreement (treaty) regulating the production and use of CFC's, HCFC's, halons, methyl chloroform, and carbon tetrachloride entered into force in mid 1989. This landmark agreement initially called for a production and consumption freeze. It currently calls for a stepwise reduction and eventual production phase out of various ozone depleting substances. The production phase-out of CFC's was completed on December 31, 1995. At present, HFC-134a is used by most new car manufacturers as a replacement for CFC-12 and older vehicles may be converted to use HFC-134a by following proper retrofit procedures. Although HFC-134a is considered ozone friendly, it is not without environmental impact. It has been found to be a greenhouse gas and contributes to the problems of global warming. Effective November 15, 1995, HFC-134a must be recovered. Penalty Section 609 of the Fe - Answer️️ -page 3 Recover/recycle equipment must be certified by an EPA approved independent standards testing organization, i.e. UL or ETL, to extract and recycle refrigerant from a motor vehicle air conditioner to a standard set forth by the Society of Automotive Engineers (SAE). The equipment standards were SAE J1990 for CFC-12 and SAE J2210 for HFC-134a. A motor vehicle air conditioning industry sponsored research project indicated that equipment designed to meet SAE standards J2210 did not recover refrigerant from MVAC systems as well as was previously assumed. As much as 30% of refrigerant remained in an MVAC system when J2210 recovery equipment indicated all refrigerant had been recovered. MVAC service technicians rely on complete refrigerant recovery to refill MVAC systems according to the motor vehicle manufacturer specification. In light of substandard recovery performance, SAE revised their standards to include performance - Answer️️ -page 4 Contaminated refrigerants must be handled with some extra precautions. If you are unsure about a refrigerant, EPA strongly recommends (but does not require) that technicians obtain a refrigerant identifier as a useful tool. When a tech