Type II — High-Pressure第 157 / 240 题
A technician is unsure which required vacuum applies to a high-pressure appliance during recovery. Which two factors determine the required evacuation level?
a.The outdoor temperature and the refrigerant color
b.The technician's certification type and the day of the week
c.The oil type and the cylinder color
d.The appliance's refrigerant charge size (under vs. 200 lbs or more) and whether the recovery equipment was made before or after November 15, 1993
解析
The required recovery evacuation level for high-pressure appliances depends on whether the appliance holds less than 200 pounds or 200 pounds or more, and on whether the recovery equipment was manufactured before or after November 15, 1993. For example, post-1993 equipment must reach 10 inches Hg under 200 pounds and 15 inches Hg at 200 pounds or more. Outdoor temperature, oil type, and cylinder color do not set the requirement.
法律依据: 40 CFR §82.156免费刷完整 240 道题库 — 无需注册。
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