Who may refill a DOT 39 nonrefillable cylinder? A) Only ...

[formula1]

Who may refill a DOT 39 nonrefillable cylinder?
 
  A) Only EPA-certified refrigerant recyclers B) Only certified technicians
  C) Only refrigerant manufacturers D) Nobody

Question 2

How do piercing pliers differ from braze-on piercing valves with regard to how they are used on sealed systems?
 
  A) Piercing pliers cannot be used to recover refrigerant.
  B) Piercing pliers cannot be a permanent solution.
  C) Piercing pliers require a bolted valve.
  D) Piercing pliers have a greater danger of causing overheating.

[kmb352]

Answer to Question 1

D

Answer to Question 2

B

[formula1]

Thanks for the timely response, appreciate it

[triiciiaa]

Excellent