Explain why triple evacuations are not normally performed on large systems.
When servicing a small appliance for leak repair;
When servicing a small appliance for leak repair;
At what pressure range does the technician valve off the vac…
At what pressure range does the technician valve off the vacuum pump when evacuating to a deep vacuum?
The sale of CFC and HCFC refrigerant is ;
The sale of CFC and HCFC refrigerant is ;
EPA regulations include which of the following in the defini…
EPA regulations include which of the following in the definition of a small appliance?
System-dependent recovery methods may only be used on applia…
System-dependent recovery methods may only be used on appliances containing;
Recovery equipment used during maintenance service, or repai…
Recovery equipment used during maintenance service, or repair of small appliances must be certified by an EPA approved lab if manufactured after;
The component of a refrigeration system which changes a high…
The component of a refrigeration system which changes a high pressure vapor to a high pressure liquid is the:
Which of the following is true regarding refrigerant leaks o…
Which of the following is true regarding refrigerant leaks on small appliances?
If a large leak of refrigerant occurs such as from a filled…
If a large leak of refrigerant occurs such as from a filled cylinder in an enclosed area, what action should be taken when no self contained breathing apparatus is available?