Core (Universal)第 16 / 240 题
A technician who services rooftop package units charged with R-410A (a high-pressure refrigerant) needs which certification type at minimum?
a.Type I
b.Type III
c.No certification, because HFCs have zero ODP
d.Type II
解析
Type II certification is required to service or dispose of high-pressure and very high-pressure appliances, which includes R-410A rooftop units. Type I covers only small appliances, Type III covers low-pressure systems, and certification is required for HFCs even though they have zero ODP. A Universal certification would also qualify because it includes Type II.
法律依据: 40 CFR §82.161免费刷完整 240 道题库 — 无需注册。
同考点相关题目
- A technician is about to replace a compressor on a residential R-410A split system. Before opening the sealed system, the technician must:
- Since November 15, 1995, it has been illegal to knowingly vent which refrigerants during service, maintenance, or disposal?
- A small household refrigerator contains less than 5 pounds of refrigerant. Which certification type covers recovering refrigerant from this small appliance?
- A technician services a large centrifugal chiller that uses R-123, a low-pressure refrigerant. Which certification type is required?
- A technician wants a single certification that allows work on small appliances, high-pressure systems, and low-pressure systems. Which does the technician need?
- How long does an EPA Section 608 technician certification remain valid?