EPA 608 Type III Correct Questions & Answers

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 the tubes b) remove any water from the machine c) vent refrigerant d) determine if a tube leaks - ANSWER d) determine if a tube leaks Excessive running of a purge system on a low pressure chiller generally indicates that the: ___________. a) air sensors are faulty b) ambient temperature is too high c) efficiency of the purge unit is too low d) system is leaking - ANSWER d) system is leaking When recovering vapor from a low pressure refrigeration system: __________. a) water pumps should all be on, and the recovery compressor should be off b) system water pumps should be on, the recovery compressor should be on, and the recovery condenser water should be off c) the systems water pumps, the recovery compressor, and the recovery condenser water should all be on d) system water pumps should be off, and the recovery compressor should be on - ANSWER c) the systems water pumps, the recovery compressor, and the recovery condenser water should all be on ASHRAE Standard 15 - 1994 requires equipment room refrigerant sensors for what safety group classifications? a) A1