In a recycling machine, what do the replaceable core filter-driers reduce?
The three Rs · EPA 608 Core. The correct answer, and the reasoning behind it.
What recover, recycle and reclaim each mean.
The question
In a recycling machine, what do the replaceable core filter-driers reduce?
- The amount of refrigerant in the cylinder
- Chlorine content of the refrigerant
- The refrigerant's ozone depletion potential
- Moisture, acidity and particlesCorrect answer
Why “Moisture, acidity and particles” is correct
40 CFR 82.152 notes that recycled refrigerant is generally cleaned by oil separation and passes through devices such as replaceable core filter-driers, which reduce moisture, acidity and particulate matter.
Source: 40 CFR 82.152
Why the other answers are wrong
- The amount of refrigerant in the cylinder — Filter-driers clean refrigerant; they are not meant to reduce the amount.
- Chlorine content of the refrigerant — Chlorine is part of the refrigerant molecule and is not filtered out.
- The refrigerant's ozone depletion potential — ODP is a property of the chemical and does not change.
Practice more of this
More EPA 608 Core 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.