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ASE Heating and Air Conditioning Practice Test
Multiple Choice
ASE Heating and Air Conditioning
Multiple Choice Practice Test
Question 1 of 3
45% Get this Question Right
When converting the ac system in an older vehicle to R134a what percentage of the original R12 charge amount should be used?
A
90%
B
75%
C
89-90%
D
100%
When charging a retrofitted system with R134a refrigerant the system will only require 80-90% of the R12 charge amount.
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