Question 11Refrigeration & AC - QMED

The correct answer is C) check the drains on the condenser heads with a halide torch. This is the correct answer because the drains on the condenser heads can be checked with a halide torch to quickly test for the presence of a refrigerant leak in a water-cooled condenser, without having to pinpoint the exact location of the leak. The halide torch will detect any refrigerant vapors escaping through the drains, indicating a leak in the condenser. The other options are incorrect because they do not provide a quick method to test for a refrigerant leak. Testing the cooling water pH, checking the receiver for water content, or hydrostatic testing of the condenser tubes would not directly indicate the presence of a refrigerant leak.