Hvac exam 2024 - Study guides, Class notes & Summaries

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...

HVAC: EPA 608 CERTIFICATION EXAM 2024 WITH 100% CORRECT ANSWERS Are there drop-in replacements for R-12 systems? Why or why not? - correct 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? - correct answer Ester based oils and they do not mix with other oils What type of lubricant is used with HCFCs? - correct answer Alkylbenzene lubricant What is difference b...

HVAC FINAL EXAM 2024 WITH 100% ACCURATE SOLUTIONS What is an HVAC System? - correct answer all the items needed to maintain thermal comfort within a space or group of spaces What are the four components of an HVAC system? - correct answer Fans Pumps Compressor Evaporator What is a PTAC? - correct answer Packaged Terminal Air Conditioner What is a PTHP? - correct answer Packaged Terminal Heat Pump List the heat transfer equipment (3) - correct answer Boiler Chiller Coil Wha...

HVAC EXAM 1 2024 WITH 100% ACCURATE SOLUTIONS Matter exists in what three forms? - correct answer solid, liquid, gas What is temperature measured by? Quantity or intensity - correct answer Intensity Define British thermal unit (Btu) - correct answer Measure of heat energy - amount of energy needed to raise 1 lb of water 1 degree F How much heat is required to raise the temp of 100 lb or water from 70F to 120F - correct answer Q=1000lb*(1btu / change of temp) so 1000*(1/ 50) = 50,0...

HVAC Excellence - ELECTRICITY Exam 2024 Questions With Complete Solutions.

HVAC ACTUAL PRACTICE EXAM 25 MULTIPLE QUESTIONS WITH VERIFIED SOLUTIONS ALREADY PASSED (2024/2025)

HVAC EXCELLENCE 2024 UPDATE EXAM PRACTICE COMPREHENSIVE QUESTIONS AND VERIFIED ANSWERS EXAM PRACTICE,,,Alpha

Hvac Journeyman Exam 2024 Questions and Correct Answers. Defects on gas piping or fittings shall be _____.(A) repaired(B) replaced or repaired and retested(C) repaired by a certified welder(D) ignored, as the operating pressure is much less than the air test. - ANSWER-B. Fitting shall be replaced or repaired and retested. UMC Section 1316.4.3 Every absorption refrigerating system supported from the ground shall rest on a concrete slab extending not less than _____ the adjoining ground leve...

HVAC FINAL EXAM 2024 WITH 100% ACCURATE SOLUTIONS What is an HVAC System? - correct answer all the items needed to maintain thermal comfort within a space or group of spaces What are the four components of an HVAC system? - correct answer Fans Pumps Compressor Evaporator What is a PTAC? - correct answer Packaged Terminal Air Conditioner What is a PTHP? - correct answer Packaged Terminal Heat Pump List the heat transfer equipment (3) - correct answer Boiler Chiller Coil W...