When moisture is present in a refrigeration systems, it will react with the refr

Question

When moisture is present in a refrigeration systems, it will react with the refrigeration and the oil to from _____________. Carbon dioxide acid carbon monoxide all of the above Which of the following represents the lowest vacuum? 10 psia 5 degree Hg VAC 5 psig 1000 microns To pull a vacuum Means to ________________. Raise the pressure in a refrigeration system lower the pressure in a refrigeration system below atmospheric allow refrigeration to escape into the atmosphere A compound gauge _________. indicates pressures above 14.696 psia INDICATES pressures in inches Hg below atmospheric pressure is one of two gauges on a typical gauge manifold all of the above A micron gauge is used to measure ______________. atmospheric pressures at high altitudes atmospheric pressures at sea level absolute pressures below 1 mm Hg high pressure in a refrigeration system The best method of leak checking is when the refrigeration system is ________. in a vacuum open to the atmosphere operating with all fans activated standing with dry nitrogen pressure of 150 psig in the system Noncondensable gases _____________. are desirable in a refrigeration system are undesirable in a refrigeration system condense readily under normal atmospheric conditions help in pulling a vacuum

Explanation / Answer

Answers

1. When moisture is present in a refridgeration system,it will react with the refridgerant and the oil to form ______

Ans: b. Acid

2.Which of the following represents the lowest vaccum?

Ans: d.1000 microns

3. To pull a vaccum means to ____________

Ans: b. lower the pressure in a refridgeration system below atmospheric

4. A compound gauge ______

Ans:d. all of the above

5. A micron gauge is used to measure _______

Ans:c. absolute pressure below 1mm Hg

6. The best method to leak checking is when the refridgeration system is _________

Ans: d. standing with dry nitrogen pressure of 150 psig in the system

7. Noncondensable gases _______

Ans:b. are undesirable in a refridgeration system

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