Question 128Refrigeration & AC - QMED

The correct answer is A. The evaporator coil horizontal return line of a container refrigeration system must be at least 0.875" in diameter, as per the regulations governing the design and installation of refrigeration systems on commercial vessels. A horizontal return line that is less than 0.875" would be considered too small and would not meet the regulatory requirements. The other answer choices (B, C, and D) are incorrect because they do not accurately reflect the required minimum size for the evaporator coil horizontal return line.