Question 178Refrigeration & AC - Assistant Engineer

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 charge in 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 refrigeration system. The other options are incorrect because "straight charged" refers to a sensing bulb charged with the same fluid as the system, "blended charged" is not a commonly used term, and "mixed charged" does not accurately describe a situation where the charges are different.