Author Question: Which of the following is the range of fin spacing on low-temperature coils? A) 14 pins per inch ... (Read 67 times)

LCritchfi · **on:** Jul 24, 2018

Which of the following is the range of fin spacing on low-temperature coils?

A) 14 pins per inch B) 15 pins per inch C) 69 pins per inch D) 79 pins per inch

Question 2

What should a technician do with a DOT 39 nonrefillable cylinder when it is empty?

A) Once most of the refrigerant has been used, the residual may be released to the air.
B) Recover any remaining refrigerant, open the valve, knock out the relief disk, and label it EMPTY.
C) The cylinder should be returned to the refrigerant manufacturer to be reused.
D) Knock out the relief disk to remove the residual refrigerant and label the cylinder empty.