Core (Universal)第 24 / 240 题
What is 'system-dependent' (passive) recovery?
a.Recovery that uses a large self-contained machine with its own compressor
b.Recovery performed only by the manufacturer
c.Recovery that vents part of the charge to speed up the process
d.Recovery that relies on the appliance's own compressor or internal pressure to move refrigerant into a recovery container
解析
System-dependent or passive recovery uses the appliance's own compressor or its internal pressure to push refrigerant into a recovery container, and it is generally limited to small appliances. Self-contained (active) recovery uses a separate machine with its own compressor. Passive recovery must never involve venting any part of the charge.
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