Air Conditioning Certification Questions With 100% Correct Answers!!

sensible heat - Heat that causes change in temperature of a substance latent heat - Heat that is added with out a rise in temperature super heat - Heat added to refrigerant in vapor state after evaporation process is involute spirals - Scroll compressor moves refrigerant by means of convection - movement of heat by way of fluid or air conduction - movement of heat by way of solid BTU - Standard unit for measuring heat Condensor - refrigerant gives up heat in the liquid slugging - refrigerant in suction line must be slightly warmer than the saturation temperature to prevent low - state of refrigerant in the suction line is ____ pressure _____ temp vapor High - state of refrigerant entering the condensor would be ______ pressure ______ superheated vapor evaporator - transfers heat from refrigerated space to the refrigerantflammability - which is not a thermo-dynamic property of refrigerants Compression, condensation, expansion and vaporization - the sequential order of steps in vaporcompression process 201 psig - 30 lbs cylinder of R410A sits overnight at 70 degrees would have a pressure of inches of water column (WC) - fan airflow pressures are usually measured in 0 psia - pressure that cannot be further reduced 0 psig - the same as atmospheric pressure dew point temp - the temp at which moisture will start to condense from the air is the pressure and vacuum - compound pressure gauge measures open drive compressor - a mechanical shaft seal is necessary on an liquid slugging - liquid refrigerant in the compressor clearance space clearance space - has an effect on compressor capacity in a reciprocating compressor scroll - which type of air conditioning compressor is the most effecient De-superheat, condense and subcool - what is the right order of function in a condensor air cooled, water cooled and evaporative - 3 basic types of condensorssensible and latent - heat removed from refrigerant by condensor is both _____ and ______ energy recovery ventilator - what uses an air to air heat exchanger to recover heat 30 degrees hotter than the air entering - when testing the efficiency of an air cooled condenser the refrigerant condensing temp should be approximately