EPA 608 Type II Sample Test Questions {Questions With 100% Correct Answers} (2024 / 2025) (Verified by Expert)

Before charging a new system with refrigerant, what should be done? - ANSWER Pressurize with nitrogen (classified as an inert gas) and leak Which refrigerant can be used for leak detection as a trace gas and pressurized with nitrogen? - ANSWER R-22 What tools can you use to find general area of leaks and pinpoint leaks? a. Soap bubbles. b. Look for oil residue c. Electronic or ultrasonic leak detector will provide the general area of the leak d. Refrigerant dye - ANSWER c. Electronic or ultrasonic leak detector will provide the general area of the leak Traces of oil around a sight glass inlet fitting of a refrigeration system might be the indication of: a. A leak b. Excessive oil in the system c. An overcharge d. A restriction at the TXV - ANSWER a. A leak