There are ____________________ microns in 1 mm Hg.
A hydrostatic tube test kit will;
A hydrostatic tube test kit will;
On low pressure chillers, moisture most frequently enters th…
On low pressure chillers, moisture most frequently enters the refrigerant system through;
When it is essential to take measures to help release trappe…
When it is essential to take measures to help release trapped refrigerant from the compressor oil during refrigerant recovery;
Explain why triple evacuations are not normally performed on…
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;