Which method, used by itself, does not meet EPA's definition of a leak inspection on an R-11 chiller?
Leak detection · EPA 608 Type III. The correct answer, and the reasoning behind it.
Pressurizing low-pressure systems for leak tests, signs of leaks, inspections and reports.
The question
Which method, used by itself, does not meet EPA's definition of a leak inspection on an R-11 chiller?
- An electronic leak detector
- A standing vacuum decay testCorrect answer
- A bubble test at the joints
- An ultrasonic leak test
Why “A standing vacuum decay test” is correct
A leak inspection must find where the leaks are. Methods that only show that the appliance is leaking, such as standing pressure or vacuum decay tests, must be paired with a method that locates the leak, like an electronic detector, bubble test or ultrasonic test.
Source: 40 CFR 82.152
Why the other answers are wrong
- An electronic leak detector — A properly maintained detector can locate leaks, so it qualifies.
- A bubble test at the joints — Bubble tests locate leaks and are listed as a potential method.
- An ultrasonic leak test — Ultrasonic testing is named in the definition as a method that can locate leaks.
Practice more of this
More EPA 608 Type III practice questions, or see every EPA 608 practice test.
Unofficial, not affiliated with the EPA or any EPA-approved certifying organization. Questions are original practice written from public EPA material, not real exam questions.