ESCO A/C EXAM ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS

ESCO A/C EXAM ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS heat which causes a change in temperature of a substance is called - Answer -sensible heat Heat added to a substance without a rise in temperature - Answer - latent heat of vaporization Heat added to the refrigerant in a vapor state after the evaporation process is called - Answer -superheat scroll compressor move refrigerant by - Answer -involute spirals the movement of heat by way of fluid is called - Answer -convection the movement of heat by direct contact is - Answer -conduction the standard unit for measuring the quantity of heat in a substance is - Answer -btu refrigerant gives up heat when - Answer -it condenses why must refrigerant in the suction line be slightly warmer than the saturation temperature? - Answer -prevent liquid slugging of the compressorthe state of the refrigerant in the suction line should be - Answer -low pressure / low temperature vapor the state of the refrigerant entering the condenser is - Answer -high pressure / highly superheated vaoor the evaporator - Answer -Transfers heat from the refrigerated space to the refrigerant which of the following is not a thermodynamic property of refrigerants - Answer -flammability The sequential order of steps in the vapor compressions process are - Answer -compression, condensation, expansion, vaporization if a 30 pound cylinder of reclaimed R 410 a refrigerant has been stored overnight at 70° the pressure in the cylinder should be approximately - Answer -201 psig fan airflow pressures are usually measured in - Answer -inches of water column 0 pounds per square inch absolute is - Answer -A pressure which cannot be further reduced 0 pounds per square inch gauge is - Answer -The same as atmospheric pressure The temperature at which moisture will start to condense from the air is called - Answer -Dewpoint temperature compound pressure gauge measures - Answer -pressure and vacuum mechanical shaft seal is necessary on a - Answer -Open Drive compressor