SuperDuty
01-31-2007, 08:57 PM
Hi,
Im hoping someone sees this post and has some answers for me. I am testing tomorrow in Massachussetts for a Refrigeration Contractors liscense. It will be my second attempt. As I recall there were a few ammonia questions that I had no clue about. I wrote down a few of the questions I had last time and have had very little luck finding the answers. As best I can tell from my shorthand (scrawled in my truck after the last test) my questions are:
Ammonia oil pump pressure is what? I dont recall the choices
Ammonia oil pump safety can do what? Reset automatically
Shut down unit
Energize emergency pump
A few non ammonias that were asked that Im unsure of:
R-11 not compatible with what metal?
Most efficient condenser is? Fin
Shell and tube
Double Pipe
None of these
Manually adjustable pressure reducer can go to what % of maximum
allowable working pressure?
Any help would be much appreciated.
Thank you,
Jack:)
Im hoping someone sees this post and has some answers for me. I am testing tomorrow in Massachussetts for a Refrigeration Contractors liscense. It will be my second attempt. As I recall there were a few ammonia questions that I had no clue about. I wrote down a few of the questions I had last time and have had very little luck finding the answers. As best I can tell from my shorthand (scrawled in my truck after the last test) my questions are:
Ammonia oil pump pressure is what? I dont recall the choices
Ammonia oil pump safety can do what? Reset automatically
Shut down unit
Energize emergency pump
A few non ammonias that were asked that Im unsure of:
R-11 not compatible with what metal?
Most efficient condenser is? Fin
Shell and tube
Double Pipe
None of these
Manually adjustable pressure reducer can go to what % of maximum
allowable working pressure?
Any help would be much appreciated.
Thank you,
Jack:)