Type I mock exam, question 1 of 50
Type I mock exam — Core — question 1 of 50
An older centrifugal chiller is charged with R-11. What type of refrigerant is R-11?
You can move on without answering. Unanswered questions are counted as wrong.
Type I mock exam — Core — question 1 of 50
An older centrifugal chiller is charged with R-11. What type of refrigerant is R-11?
You can move on without answering. Unanswered questions are counted as wrong.