Type I — Small Appliances第 120 / 240 题
A technician plans to recover from a chest freezer whose compressor is seized (inoperable). Which combination correctly describes the required equipment and recovery level?
a.Passive equipment; 90% recovery
b.Any equipment; 100% recovery
c.Self-contained equipment; 4 inches Hg above atmospheric
d.Self-contained (active) equipment; 80% recovery or 4 inches Hg vacuum
解析
With a seized, inoperable compressor, the appliance cannot help move refrigerant, so self-contained (active) recovery equipment is needed and the required level is 80% recovery or 4 inches Hg vacuum. The 90% level applies only when the compressor operates. No method requires 100% recovery, and 4 inches Hg above atmospheric is not a vacuum.
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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