Type II High-Pressure Systems Flashcards
7 cards from real EPA 608 609 practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 7 Type II High-Pressure Systems flashcards as text
When recovering refrigerant from a high-pressure system, the recovery cylinder should never be filled beyond what percentage of capacity?
Answer: 80%
Recovery cylinders must not be filled past 80% to allow for liquid expansion.
What is the standard color code for a refrigerant recovery cylinder?
Answer: Gray with yellow top
Recovery cylinders are gray with a yellow top to distinguish them.
Liquid recovery from a high-pressure system is faster than vapor recovery primarily because:
Answer: More mass moves per unit time
Liquid recovery removes more refrigerant mass per minute than vapor recovery.
During recovery, frost forming on the recovery machine suction line usually indicates:
Answer: Liquid refrigerant entering the compressor
Frosting on the suction line signals liquid slugging into the recovery compressor.
Which best describes 'recycling' of refrigerant?
Answer: Reducing contaminants with oil separation and filtration on site
Recycling cleans refrigerant on site through oil separation and filter-driers.
A technician must keep records of refrigerant recovered for resale for how long?
Answer: 3 years
Records related to refrigerant recovery for resale must be kept for three years.
What should be done with a recovery cylinder that has reached its hydrostatic test expiration?
Answer: Retest or remove from service
Cylinders past hydrostatic test dates must be retested or taken out of service.