EPA 608 EXAM BUNDLE(COMPLETE PACKAGE DEAL) Type 3| 50 Questions | Correct 100% Correct!!

Where do leaks commonly occur in low pressure systems? a. Evaporator b. Condenser c. Purge unit d. Gaskets or fittings - ANSWER d. Gaskets or fittings Where do leaks commonly occur in open-drive type compressor systems? a. Evaporator b. Condenser c. Shaft seal d. Cooling tower - ANSWER c....

The maximum test pressure for leak testing a low-pressure centrifugal chiller is - ANSWER 10 psig Excessive operation of a purge system means - ANSWER The system has a leak on the sub-ambient pressure side of the system For a commercial refrigeration system with a charge of 50 pounds or more r...

What do R-11 and R-123 refrigerants have in common? A. They are oxygen depleting B. They are Class I and II substances as defined by the EPA C. Both A and B D. Neither A nor B - ANSWER C. Both A and B What is the required evacuation level for recovering refrigerant from a low-pressure appli...

municipal water supply approximately how much refrigerant vapor is left in an average 350 ton R-11 chiller at 0 psig pressure once all the R-11 liquid has been removed? - ANSWER 100 lbs a rupture disc on a recovery vessel for low pressure refrigerant relieves at ____ - ANSWER 15 psig on a c...

When using recovery or recycling equipment manufactured or imported on or after Nov 15, 1993, the required level of evacuation for low pressure equipment is _____ Hg absolute: 30mm 25mm 15mm 20mm - ANSWER 25mm The EPA requires that all commercial and industrial process refrigeration systems...

The state of the refrigerant entering the metering device is: - ANSWER High pressure liquid The following components are metering devices: - ANSWER Evaporator pressure regulator, Thermostatic expansion valve The state of the refrigerant entering the compressor is: - ANSWER Low pressure vapor ...

Identify the pressure corresponding to 32 degrees F for R-123: ________. a) 23 inches of Hg vacuum b) 20 inches of Hg vacuum c) 17 inches of Hg vacuum d) 11 inches of Hg vacuum - ANSWER b) 20 inches of Hg vacuum A hydrostatic tube test kit is used to: _________. a) blow all water from th...

Technicians maintaining, servicing, repairing or disposing of low-pressure appliances must be certified as - ANSWER Type III Technician or a Universal Technician. As of November 14, 1994, the sale of CFC and HCFC refrigerants is restricted to - ANSWER Certified technicians, NOTE: If EPA regulatio...

What type of equipment can be worked on with Type III certification? - ANSWER low pressure The most efficient method of leak checking a charged low-pressure refrigeration unit is to - ANSWER pressurize the system by the use of controlled hot water or heater blankets When pressurizing a system,...

Techs maintaining, servicing, repairing, or disposing of low pressure appliances must be certified as? - ANSWER Type III or universal technician As of what date was the sale of CFCs and HCFCs restricted to certified techs? - ANSWER Nov 14, 1994 Who is responsible to comply with changes in sect...

A typical setting for the high pressure cut-out control on a recovery unit used for evacuating the refrigerant from a low pressure chiller is: - ANSWER C) 10 psig. A charged low pressure refrigeration system can be efficiently leak checked by: - ANSWER D) raising system pressure by heating with c...

technicians maintaining, servicing, repairing, or disposing of low-pressure appliances must be certified as: - ANSWER Type III or Universal Technician the owner &/or operator of the equipment is responsible for keeping: - ANSWER records including: leak inspections & any completed leak repair veri...

Before recovering refrigerant from a chiller suspected of having tube leaks,... - ANSWER ...drain the water sides of the evaporator and condenser. Draining the water sides helps to avoid the introduction of additional water into the system cause by the evacuation process and to prevent the water fro...

On low-pressure chillers, moisture most frequently enters the system through; a. air leaks in the rupture disc assembly. b. tube leaks in the evaporator. c. leaks from areas with gaskets or fittings. d. leaks from the charging service valve. - ANSWER c. leaks from areas with gaskets or fittings....