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Exam (elaborations)

EPA 608 Type 3 Exam Questions with Complete Solutions Graded A+

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EPA 608 Type 3 Exam Questions with Complete Solutions Graded A+ On low pressure chillers, moisture typically enters the refrigerant system through - Correct Answer air leaks from areas with gaskets or fittings The maximum test pressure for leak testing a low pressure centrifugal is: - Correct Answer 10 psig Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller - Correct Answer ... A hydrostatic tube test kit is used to: - Correct Answer determine if a tube leaks Commercial and industrial process refrigeration systems must be repaired when the leak rate exceeds ____ of the charge per year. - Correct Answer 35% Refrigerant recovery typically start with liquid recovery it is faster. - Correct Answer ... A rupture disc on a recovery vessel for a low pressure refrigerants relieves at: - Correct Answer 15 psig According to ASHRAE Guideline 3-1996, if the pressure in a system rises from 1 mm Hg to a level above ____ during a standing vacuum test, the system should be checked for leaks. - Correct Answer 2.5 mm Hg The primary water source for a recovery unit condensing coil is _____. - Correct Answer local municipal water supply When recharging a refrigeration system with R-11, what vaporpressure is necessary in the shells before changing with liquid? - Correct Answer 16.9" Hg vacuum After recovering the liquid refrigerant you must: - Correct Answer recover the vapor refrigerant According to the EPA there is approximately _____ refrigerant vapor left in an average 350 ton R-11 chiller at 0 psig pressure once all the R-11 liquid has been rem

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