A compound gauge - Study guides, Class notes & Summaries

BECC Mod 2 study guide final exam questions and answer What is gauge pressure plus atmospheric pressure? - CORRECT ANSWER-Pounds per square inch absolute (PSIA) What is atmospheric pressure at sea level? - CORRECT ANSWER-14.7 PSIA What does a differential gauge measure? - CORRECT ANSWER-Difference between 2 separate points. Known as PSID What does a duplex gauge measure? - CORRECT ANSWER-Measures and displays pressure readings simultaneously from 2 points What does a vacuum gauge me...

HVAC (EPA Certification Exam Section 608) Questions and Answers 100% Pass How many types of HVAC certifications are there? - Correct Answer ️️ -There are 4 types. What does a metering device do? - Correct Answer ️️ -The metering device causes a reduction in pressure, and therefore a reduction in saturation temperature. What is absorbed in the evaporator? - Correct Answer ️️ -Heat is absorbed in the evaporator. What happens in the evaporator? - Correct Answer ️️ -Heat is a...

How many types of HVAC certifications are there? - Answer-There are 4 types. What does a metering device do? - Answer-The metering device causes a reduction in pressure, and therefore a reduction in saturation temperature. What is absorbed in the evaporator? - Answer-Heat is absorbed in the evaporator. What happens in the evaporator? - Answer-Heat is absorbed in the evaporator and causes the refrigerant to boil from liquid to vapor. At the outlet of the evaporator the refrigerant is what? ...

HVAC: EPA 608 Certification Exam Questions and Answers Latest Updated 2024/2025 (GRADED A+) What type of lubricant is used with HCFCs? CORRECT ANSWERAlkylbenzene lubricant What is difference b/w ternary blend a azeotropic blend? CORRECT ANSWERTernary blends are threepart mixtures whereas azeotropic blends are blends of two or more compounds that act like a single compound. What is the trait of a hygroscopic lubricant? CORRECT ANSWERIt absorbs (takes on) moisture What is temperature glide and...

HVAC: EPA 608 Certification Exam Questions and Answers Latest Updated 2024/2025 (GRADED) Are there drop-in replacements for R-12 systems? Why or why not? CORRECT ANSWERNo 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? CORRECT ANSWEREster based oils and they do not mix with other oils What type of lubricant is used with HCFCs? CORRECT ANSWERAlkylbenzene lubricant What is diffe...

________ can be caused for leak detection with all high pressure refrigerants - Soap bubbles 10 lbs. of refrigerant passing through a water cooled condenser will lose 20 BTU's of heat per lb. If 10 lbs. of water passes through the condenser with an entering temperature of 80°f. The temperature of the water leaving the condenser is - 100°f A compound pressure gauge measures - Pressure and vacuum A compressor unit that has a broken reed valve will cause these symptoms - High suction pressu...

HVAC (EPA Certification Exam Section 608) Questions With Verified Solutions | ALREADY PASSED | LATEST REVISED UPDATE What does a metering device do? - ANSWER The metering device causes a reduction in pressure, and therefore a reduction in saturation temperature. What is absorbed in the evaporator? - ANSWER Heat is absorbed in the evaporator. What happens in the evaporator? - ANSWER Heat is absorbed in the evaporator and causes the refrigerant to boil from liquid to vapor. At...

Are there drop-in replacements for R-12 systems? Why or why not? - Answer-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? - Answer-Ester based oils and they do not mix with other oils What type of lubricant is used with HCFCs? - Answer-Alkylbenzene lubricant What is difference b/w ternary blend a azeotropic blend? - Answer-Ternary blends are three-part mixtures whereas aze...

How many types of HVAC certifications are there? - Accurate AnswerThere are 4 types. What does a metering device do? - Accurate AnswerThe metering device causes a reduction in pressure, and therefore a reduction in saturation temperature. What is absorbed in the evaporator? - Accurate AnswerHeat is absorbed in the evaporator. What happens in the evaporator? - Accurate AnswerHeat is absorbed in the evaporator and causes the refrigerant to boil from liquid to vapor. At the outlet of th...

Which of the following should be done after installing a new copper injector sleeve? A. Heat it B. Dress it C. Ream the seat D. Coat it with a looking compound - Answer-C. Ream the seat (This reaming ensures there will be a good clean area for the injector to seal against) A diesel engine has oil in the radiator. Which of the following would be the cause? A. Cracked piston cooling nozzle B. Cracked oil cooler C. Restricted turbocharger drain line D. Restricted exhaust gas recirculation...