EPA Core Practice Exam Questions and Answers Graded A+

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EPA Core Practice Exam Questions and Answers Graded A+ The layer of the Stratosphere that protects us from excessive Ultra Violet radiation is comprised of; ✔✔Ozone The molecule found in CFC's and HCFC's that depletes ozone is: ✔✔chlorine Crop loss, eye disease, and skin cancer have been attributed to; ✔✔Depletion of Stratospheric ozone How many chlorine atoms does it take to destroy 1,000,000 (one million) ozone molecules? ✔✔10 The chlorine in CFC's will; ✔✔not dissolve in water HCFC's contain ✔✔Hydrogen, Chlorine, Fluorine, and Carbon Which of the following has the highest Ozone Depletion Potential? ✔✔CFC's Technicians have been required to be certified to service, maintain, or dispose of appliances containing regulated refrigerants since. ✔✔November 14, 1994 It has been a violation of EPA Section 608 regulations to vent CFC's or HCFC's since; ✔✔July 1, 1992 It has been a violation of EPA Section 608 regulations to vent HFC's since ✔✔November 15, 1995 Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is the proper disposal method for; ✔✔Disposable cylinders Which international agreement (Treaty) regulated the production and use of CFCs, HCFC's, halons, methyl chloroform and carbon tetrachloride? ✔✔Montreal Protocol Clean refrigerant for reuse by separating the oil from the refrigerant and removing moisture from the refrigerant by passing it through one or more filter driers, is the definition of; ✔✔Recycle To process refrigerant to a level equal to new (virgin) product specifications as determined by chemical analysis defines; ✔✔Reclaiming HFC's ________; ✔✔will not damage stratospheric ozone When chlorine monoxide is found in the stratosphere, it indicates that; ✔✔the ozone layer is being depleted Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) ✔✔are ODP substances The two types of recovery systems are ✔✔System dependent and self contained When a system is in full vacuum ____________ ✔✔Never energize the compressor The evaporator ___________________ ✔✔changes a low pressure liquid to a low pressure vapor The condenser _______________________________________ ✔✔changes a high pressure liquid to a low pressure liquid The metering device ______________________________ ✔✔changes a high pressure liquid to a low pressure liquid The compressor ____________________________________ ✔✔changes a low pressure vapor to a high pressure vapor An ozone molecule contains; ✔✔Three oxygen atoms Which type of refrigerant contains no chlorine? ✔✔HFC's

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