Question 55Refrigeration & AC - QMED
70% to passWhen the sensing bulb of a thermostatic expansion valve is charged with a fluid different from the charge used in the system, what name of the charge is associated with the power element?
Astraight charged
Bmixed charged
Ccross charged
Dblended charged
AI Explanation
The correct answer is C) cross charged. When the sensing bulb of a thermostatic expansion valve is charged with a fluid different from the charge used in the system, the power element is referred to as "cross charged." This is because the charge in the sensing bulb does not match the charge in the rest of the system, creating a "cross" between the two different charges. The other options are incorrect because "straight charged" refers to the sensing bulb and system using the same charge, "mixed charged" is not a recognized term, and "blended charged" does not accurately describe the mismatch between the sensing bulb and system charges.
Related Questions
Q105:Which of the conditions listed may be an indication of an excessive amount of re... Q39:Before charging a refrigeration unit, unless quick disconnect fittings are used,... Q72:An air-cooled refrigerated container unit using R-134a as a refrigerant has a bo... Q37:The amount of HCFC-123 in a storage cylinder is measured by what means? Q93:Which of the following electrically operated refrigeration system valves would b...
Ready to test your knowledge?
Take a Refrigeration & AC - QMED Practice ExamOfficial Resources