EPA 608 Type 3 Exam Questions Fully Solved Latest Update 2025 Already Passed

EPA 608 Type 3 Exam Questions Fully Solved Latest Update 2025 Already Passed Type 3 - Answers Technicians maintaining, servicing, repairing or disposing of low-pressure appliances must be certified as a universal technician or a _______ ___. enter - Answers Because a low-pressure system operates below atmospheric pressure (in a vacuum), leaks in the gaskets or fittings will cause air and moisture to ______ the system. heater - Answers The most efficient method of leak checking a charged, low-pressure refrigeration unit is to pressurize the system by the use of controlled hot water or ______ blankets. nitrogen - Answers When unable to heat a low-pressure system for leak-checking, use ______ to increase pressure. 10 - Answers When pressurizing a low-pressure system with nitrogen, do not exceed _____ psig. rupture - Answers Exceeding 10 psig when pressurizing a low-pressure system, can cause the _____ disc to fail. removed - Answers When leak testing a water box, be certain the water has been ______ before placing the leak detector probe through the drain valve. hydrostatic - Answers When leak-testing a tube, use a _______ tube test kit. seal - Answers Systems with open drive compressors are prone to leaks at the shaft _____. hot - Answers For the purpose of opening the system for a non-major repair, controlled ______ water can be used to pressurize a system. high pressure - Answers A recovery unit's _____ _____ cut-out is set for 10 psig when evacuating the refrigerant from a low-pressure chiller. 15 - Answers A low-pressure chiller and a rupture disc on a low-pressure recovery vessel relieves at _____ psig. liquid vapor - Answers Refrigerant recovery from a system using R-11 or R-123 starts with ______ removal and is followed by _____ recovery. vapor - Answers A substantial amount of _____ will remain in the appliance after all liquid is removed. 100 - Answers An average 350 ton R-11 chiller at 0 psig still contains _____ lbs. of vapor after all the liquid has been removed. circulated - Answers Water must be ______ through the tubes when evacuating refrigerant in order to prevent freezing the water. condenser - Answers Most low-pressure recovery machines utilize a water-cooled ______ that is connected to the municipal water supply. on - Answers When recovering refrigerant, the system water pumps, the recovery compressor, and the recovery condenser water should all be ______. drained - Answers If a chiller is suspected of tube leaks, the water sides of the evaporator and condenser should be ______ prior to recovering the refrigerant. 2.5 - Answers The ASHRAE Guideline 3-1996 states that if the pressure in a system rises from 1 mm Hg to a level above ____ mm Hg during vacuum testing, the system should be leak checked. 130 - Answers A temperature of _____ F should be attained when removing oil from a low-pressure system. oil - Answers Less refrigerant is contained in the _____ at the higher temperature of 130 degrees