Refrigeration License Studienführer, Klassennotizen & Zusammenfassungen

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

Reciprocating compressors are used in domestic and commercial refrigeration systems. - ANS True A compressor can pump liquid. - ANS False A screw compressor can be hermetically sealed. Correct answer: - ANS True A screw compressor is used for ___________________ and refrigeration systems. - ANS Chilled water A_________________ can reduce and stop refrigerant migration. - ANS Crankcase heater Where does the domestic bimetal overloa...

At the condenser, refrigerant enters as - ANS Superheated gas and leaves as high pressure liquid Highly superheated vapor - ANS If you were running three compressors, what is the state of the refrigerant leaving the third compressor? Latent heat - ANS When changing water to ice, what must be removed? Touch it to a bucket of ice/ice water - ANS If you just purchased a thermometer and need to check to see if it's working properly, how would you check i...

Automatic expansion valves work with - ANS Evaporator pressure closes valve spring pressure opens valve A faulty check in a pump will cause the most damage on - ANS Startup If the T E V's sensing bulb falls off the suction line you will - ANS Flood the evaporator A clogged condenser pump strainer can cause a loss of pressure causing - ANS High condenser head pressure A solenoid valve is part of the pump down cycle - ANS Thermostat so...

Which is a disadvantage of a packaged indoor unit - ANS the potential for excessive noise exists Removing oil and filtering refrigerant for reuse is called - ANS recycle Which is the best description of temperature - ANS intensity of heat The type of head pressure control in a condenser that helps prevent drops in head pressure is the______ type - ANS fan cycling, condenser flooding, and damper control Which refrigeration system accessory is us...

What may be the cause of compressor knocking? - ANS Liquid refrigerant slugging in the compressor. What will happen if the Spring on the TEV was to break ? - ANS Flood the evaporator and raise suction pressure. What happens in the TEV equalizer line when pressure drops in the evaporator ? - ANS The TEV equalizer compensates for the loss in pressure. What is the function of the Service Valve Stem Cap ? - ANS To protect the valve from leaking the re...

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Refrigeration License Written Test Study Material #2 Quizzes & Ans!!