Why should a technician wear safety glasses and gloves when installing or removing an access valve on a small appliance?
Safety · EPA 608 Type I. The correct answer, and the reasoning behind it.
Decomposition products of refrigerants at high temperatures, and safe handling.
The question
Why should a technician wear safety glasses and gloves when installing or removing an access valve on a small appliance?
- Escaping liquid refrigerant can freeze skin and injure eyesCorrect answer
- The access valve carries electrical current
- Refrigerant oil is radioactive
- Gloves are needed only to keep the fittings and hoses clean
Why “Escaping liquid refrigerant can freeze skin and injure eyes” is correct
Liquid refrigerant boils off very quickly at atmospheric pressure and can freeze skin or eyes on contact. Eye protection and gloves guard against a spray when a fitting is made or broken.
Source: EPA: Test Topics
Why the other answers are wrong
- The access valve carries electrical current — The valve is on refrigerant tubing, not the electrical circuit.
- Refrigerant oil is radioactive — Refrigerant oil is not radioactive.
- Gloves are needed only to keep the fittings and hoses clean — The main reason is protection from cold liquid refrigerant.
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