Odp test 1 Study guides, Class notes & Summaries

NFPA 10 Exam 34 Questions with Verified Answers ANSI - CORRECT ANSWER American National Standards Institute Antifreeze Charge - CORRECT ANSWER Loaded stream charge Carbon Dioxide - CORRECT ANSWER A colorless, odorless, electrically non-conductive inert has that is a suitable medium for extinguishing class B and class C fires Dry Chemical - CORRECT ANSWER A powder composed of very small particles, usually sodium bicarbonate, potassium bicarbonate or ammonium phosphate-based with added...

The greatest effect refrigeration has is on the ____________ - Answer- Stratosphere What is the nickname of the stratosphere? - Answer- Earth's security blanket The stratosphere is __________ ______ above sea level - Answer- 10-30 miles The stratosphere is made of _____ - Answer- Ozone What is the function of the stratosphere? - Answer- To protect us from UV radiation and maintain stable earth temperatures Effects of Ozone Depletion? - Answer- Crop loss; skin cancer; deforestatio...

What is a blend of two or more components who's equilibrium vapor phase & liquid phase compositions are the same at a given pressure? - Answer- Azeotrope This is a halogenated hydrocarbon containing one or more of the three halogens: fluorine, chlorine, and bromine - Answer- Halocarbon Chlorofluorocarbons (CFCs) consist of? - Answer- Chlorine, fluorine, carbon CFCs are chemically very stable because they contain no? - Answer- Hydrogen CFCs are damaging to what layer of the ozone lay...

HVAC (EPA Certification Exam Section 608) Questions and Answers Actual Test Verified A+ How many types of HVAC certifications are there? - There are 4 types. What does a metering device do? - The metering device causes a reduction in pressure, and therefore a reduction in saturation temperature. What is absorbed in the evaporator? - Heat is absorbed in the evaporator. What happens in the evaporator? - Heat is absorbed in the evaporator and causes the refrigerant to boil from liquid t...

EPA 608 Certification Core Practice Test Exam with 100% correct Answers 2023 As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? ANS-July 1, 1992. What is the ozone layer and why is it important to us on Earth? ANS-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 stratosph...

EPA 608 Core Test Sample Questions and Answers Latest 2023 with complete solution As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? a. July 1, 1992 b. July 1, 1993 c. November 14, 1994 d. January 1, 1996 Ans a. July 1, 1992 What is the ozone layer and why is it important to us on Earth? a. Thin layer of R-22 in the atmosphere that filters UV. b. Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the st...

EPA 608 Core Test Sample Questions with 100% Correct Answers As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? a. July 1, 1992 b. July 1, 1993 c. November 14, 1994 d. January 1, 1996 - Answer️️ -a. July 1, 1992 What is the ozone layer and why is it important to us on Earth? a. Thin layer of R-22 in the atmosphere that filters UV. b. Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere la...

EPA Study Test Solved Questions and Answers The technician - Should the EPA regulations change, who's responsibility is it to comply with these changes? CFC, HCFC, HFC, and HFO refrigerants - What refrigerants are currently being regulated? False - You can work under another person's certification. Appliances charged with 5 lbs or less of refrigerant - Type 1 covers what kind of appliances? Split-systems - What kind of appliance is not included in Type 1? Water coolers, wind...

What is a blend of two or more components who's equilibrium vapor phase & liquid phase compositions are the same at a given pressure? - ANSWER-Azeotrope This is a halogenated hydrocarbon containing one or more of the three halogens: fluorine, chlorine, and bromine - ANSWER-Halocarbon Chlorofluorocarbons (CFCs) consist of? - ANSWER-Chlorine, fluorine, carbon CFCs are chemically very stable because they contain no? - ANSWER-Hydrogen CFCs are damaging to what layer of the ozone layer? ...

An ----- should be taken and ----- if a system has a major component failure. - Answer oil sample analyzed (evacuation) The system vacuum gauge should be connected ----- from the vacuum pump. - Answer far as possible To receive any certification, which section must be passed? - Answer Section A (core) Always review the -----, when working with any solvents, chemicals, or refrigerants - Answer material safety data sheets Cylinders should be transported in an ----- position - Answer u...