Question 52Refrigeration & AC - QMED
70% to passIn the multi-evaporator refrigeration system shown in the illustration, what is the proper name for the valve labeled "29"? Illustration GS-RA-12
Afreeze box thermostatic expansion valve
Bchill box evaporator pressure regulating valve
Cchill box thermostatic expansion valve
Dchill box solenoid valve
AI Explanation
The correct answer is C) chill box thermostatic expansion valve. The valve labeled "29" in the illustration GS-RA-12 is the thermostatic expansion valve for the chill box evaporator in a multi-evaporator refrigeration system. The thermostatic expansion valve controls the flow of refrigerant into the chill box evaporator based on the temperature in the chill box, ensuring proper cooling. The other options are incorrect because: A) a freeze box would have a separate thermostatic expansion valve, B) a pressure regulating valve controls pressure, not temperature, and D) a solenoid valve is an on/off valve, not a metering valve like the thermostatic expansion valve.
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