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HVAC: EPA 608 Certification Study Guide, Top Exam Questions and answers, rated A Are there drop-in replacements for R-12 systems? Why or why not? - -No because the new refrigerants are incompatible with the oils and lubricants used in R-12 systems. What type of oil is used in R-134a and what oils will it mix with? - -Ester based oils and they do not mix with other oils What type of lubricant is used with HCFCs? - -Alkylbenzene lubricant What is difference b/w ternary blend a azeotr...

EPA 608 Core, Top Questions and answers, 100% Accurate, rated A Where is the stratosphere? - -10 to 30 miles Where is ozone located? - -stratosphere What does an ozone molecule consist of? - -3 oxygen atoms The ozone layer protects us from... - -ultraviolet radiation The ozone layer helps to maintain... - -stable earth temperatures Depletion of ozone causes... - -crop loss, eye disease, skin cancer, reduced marine life, deforestation, increased ground level ozone. What type ...

EPA Universal Top Questions and answers, 100% Accurate. Graded A Which refrigerants contain the most chlorine? - -CFC. R11,R12,R500. As of what date did it become unlawful to intentionally release Class I and Class II refrigerants to the atmosphere? - -July 1 1992. Which refrigerants have the lowest ozone depletion potential (ODP)? - -HFC. R134a. The molecule found in CFC and HCFC refrigerants that destroys ozone in the stratosphere is: - -Chlorine. Stratospheric ozone consi...

EPA 608 study material including (Core, type 1, 2 and 3) Questions and answers, 100% Accurate. a vacum pump should be connected - -as far away from the pump as possible a high capacity vacuum pump and short, large diameter hoses will - -dramatically reduce emissions, pressure drop, and evacuation/dehydration time ozone contains three - -oxygen atoms one chlorine atom can destroy - -100,000 ozone molecules CFC's do not dissolve in water and do not breakdown into other compound...

EPA Certification Top exam Questions and answers, 100% Accurate. Rated A Which Refrigerants contain the most chlorine? - -CFC's As of what date did it become unlawful to intentionally release Class 1 and Class 2 refrigerants to the atmosphere? - -July 1, 1992 Which Refrigerants have the lowest zone depletion potential? - -HFC's The molecule found in CFC's and HCHC's refrigerants that destroys the ozone in the stratosphere is: - -Chlorine Stratospheric ozone consists of: - ...

EPA 608 Certification Top Exam Questions and answers, rated A+ What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? - -November 14, 1994 Section 608 of the Federal Clean Air Act requires technicians to what? - -Recover all refrigerants. The objective of the Clean Air Act is to protect what? - -The earth's stratosphere. HFC's - -HydroFlouroCarbon's CFC's - -ChloroFluoroCarbon's ODP - -Ozone Depletion Potential Which ...

rcis exam top questions & answers. 100% Accurate, rated A+ Which component of the X-Ray system converts light rays into images? - -Photon tube Lidocaine converts from 2gm in 500cc to. - -4mg in 1cc Dopamine concentration 1600 mcg/ml in 250 cc yields a concentration of - -400 mg in 250 cc What is the formula for calculating SVR - -Mean AO - Mean RA / CO In the formula BP = HR x SV x SVR, Dobutamine acts as an ____________, to _______________ by increasing ______________ - -Inotr...

RCIS Practice. Test bank. Questions & Answers. 100% Accurate, rated A+ What is the formula for calculating cardiac output? - -CO = HR x SV *CO is the same in different size adults, circulating blood volume is different Stroke volume is related to preload or afterload? SV = How much blood pushed out each beat - -Preload What is preload & afterload? - -Preload = push (end diastolic volume) - How full of blood the heart is just before systole Afterload - pushback (total periphe...

RCIS Review Questions and answers, 100% Accurate, rated A What heart sound is caused by the rapid filling of the ventricle? - -3rd An Austin Flint murmur is characterized by... (AS,AR,MS, or MR) - -AR Diamond-shaped ejection murmur radiating toward the neck is associated with (AS,AR,MS, or MR) - -AS What are some drugs that cause a chronotropic response - -Isoproterenol and Atropine What drugs are given prior to angioplasty to avoid coronary spasm? - -Ca Channel Blockers (ie. Ve...

RCIS study Questions and answers, 100% Accurate, graded A What is an advantage to using a filter versus a balloon occlusion distal protection device? - -Allows distal perfusion A Fogarty balloon is commonly used to - -Remove clot from a vessel Immediate treatment for a MI should include - -MONA - Morphine, O2, Nitro, Aspirin What is the source of most radiation scatter? - -Patient The _____ is the anatomical landmark used for right ventricular biopsy when gaining access from the...

RCIS Study questions & Answers, rated A+. latest version What lab tests would indicate a patient has vasculitis? (name 3) - -· Blood test (WBC, ESR0 · Biopsy · CRP- C reactive protein · Imaging (CT, MRI) What is the most common cause of renal artery stenosis? - -· Atherosclerosis Where does the spine lie in RAO projection? LAO? AP? - -· In RAO, spine is on the left · In LAO, spine is on the right · In AP, spine is in the middle What pathology causes the "a wave" to b...

Mock RCIS Exam Questions and answers, 100% Accurate, rated A In normal fetal circulation the path of oxygenated blood returning from the placenta passes though several fetal shunts. One of these normal fetal pathways between the aorta and PA can be described as a: a- L>R shunt termed the PDA b- R>L shunt termed the PDA c- L>R shunt termed the foramen ovale d- R>L shunt termed the foramen ovale - the PA-AO shunt is the PDA and its right to left. When the left heart pressure...

RCIS REVIEW Questions and answers, 100% Accurate, rated A What is the normal range of potassium in the blood? - -3.5-5.0 Name some antiplatelet medications? - -ASA, Ticlid, Plavix If a patient has a high creatinine, what should you consider? - --as small amount of contrast as possible -post procedure fluid hydration 3 ml/kg How does heparin prevent clot formation? - -- prevents conversion of prothrombin to thrombin -combines with antithrombin to make it more effective What is ...

when a vessel shrinkage decreases the lumen diameter in the area of a previous intervention it would be considered _____ - -vessel remodeling a function of changes in the atherosclerotic plaque and also the elastic properties of the arterial wall would be considered _____ - -elastic recoil Which of the following might be considered a more common adverse effect of heparin? - -thrombocytopenia bruising bleeding increased liver enzymes Indications for a temporary or permanent pacemaker ...

RCIS Practice Test 1 Top questions and answers, rated A What is the formula for calculating cardiac output? - -CO= HR x SV What is stroke volume related to? - -preload Preload is most impacted by..... - -Increased filling volumes A patient with chronic untreated hypertension would demonstrate.... - -Increased afterload Vascular resistance/pressure is most influenced by.... - -Radius of the vessel The formula for BP is.... - -BP = CO x SVR What component of a Pulmonary Ca...

RCIS Practice questions & Answers. 100% Accurate answers, rated A+ What is the formula for calculating CO? - CO=HR X SV Stroke volume is - Related to preload Preload is most impacted by - Increased filling volumes A patient with chronic untreated hypertension would demonstrate - Increased afterload Vascular resistance/pressure is most influenced by - Radius of the vessel Formula for BP is - BP=CO x SVR What component of a pulmonary capillary wedge pressure indicates mitral...

RCIS 2023 Exam. Questionbank.Top Questions and answers, 100% Accurate. What is the formula for calculating cardiac output? A. CO= PA-1 SVC B. CO= AO x PA C. CO= HR x SV - -C. CO= HR x SV Stroke volume is... A. Related to preload B. Related to afterload C. The same as ejection fraction - -A. Related to preload Preload is most impacted by... A. Mean arterial pressure B. Increased filling volumes C. Ejection fraction - -B. Increased filling volumes A patient with chroni...

Hamlet 9.04 Quiz: Act 2 Questions with accurate answers,100% Accurate, Why is Reynaldo obligated to follow Polonius's instructions? - -Polonius is Reynaldo's social superior. What does Polonius advise Reynaldo to do? - -Spread rumors about Laertes Polonius's instructions to Reynaldo demonstrate his belief that..... - -One can use deception to uncover the truth Why are Rosencrantz and Guildenstern summoned to Elsinore? - -Claudius and Gertrude want them to find out what is wrong ...

Street Law Chapter 08 Introduction to Criminal Law. Questions and answers. 100% Accurate. State of mind - what you are thinking; most crimes require that the actor have a guilty state of mind, meaning that he or she purposefully commits the prohibited act Motive - the reasons a person commits a crime Strict liability - the legal responsibility for damage or injury even if you are not negligent Elements - the conditions that make an act unlawful Felony - a serious criminal offens...

ACT prep- English; test 1 Top Questions and answers, rated A+ 1. a. NO CHANGE b. is c. it's d. DELETE the underlined portion - b. is 2. f. NO CHANGE g. has seven rooms: a front room, an herb shop, two bedrooms, a stockroom, a general store, and a kitchen and bunk room h. is cooperatively preserved and operated by the Oregon Parks and Recreation Department and the City of John Day j. has a kitchen that holds antique tables, a large woodstove, and a variety of Chinese teas and co...