Question 17Refrigeration & AC - 1st Asst/Chief
70% to passThe rupture disc on a low pressure centrifugal refrigeration unit is used as an over pressure protection device and is set to relieve at 15 psig and is most likely to lift when the compressor is idle? Where is the rupture disc located?
Aon top of the condenser shell
Bat the top of the upper chamber of the economizer
Cat the discharge of the compressor
Don top of chiller evaporator shell
AI Explanation
The correct answer is D) on top of the chiller evaporator shell. The rupture disc is located on top of the chiller evaporator shell because this is the most likely location for over-pressure to occur. When the compressor is idle, the refrigerant in the evaporator can expand and create excessive pressure. The rupture disc is designed to release this pressure and prevent damage to the system. The other options are incorrect because they are not the primary locations for over-pressure protection in a low-pressure centrifugal refrigeration unit.
Related Questions
Q46:In general, the thermal bulb for a thermal expansion valve used in a reciprocati... Q136:The carbon seal ring of a refrigeration compressor crankshaft mechanical seal is... Q61:To add small amounts of refrigerant to the low side of an air conditioning syste... Q196:Technicians servicing small refrigeration appliances can employ what type of rec... Q72:If the discharge reed valves used in a refrigeration compressor are leaking badl...
Ready to test your knowledge?
Take a Refrigeration & AC - 1st Asst/Chief Practice ExamOfficial Resources