RETA CARO - Chapter 7 / RETA -CHAPTER 7 EXAM
Lubricating Oil Function - ANSWER-Provide a film of oil between moving parts which reduces wear and friction
Viscosity - ANSWER-Measure of the pour or flow characteristics of a liquid
Standard Viscosity for Refrigeration Compressor oil - ANSWER-68 Vis...
Lubricating Oil Function - ✔✔✔ANSWER-Provide a film of oil between moving
parts which reduces wear and friction
Viscosity - ✔✔✔ANSWER-Measure of the pour or flow characteristics of a liquid
Standard Viscosity for Refrigeration Compressor oil - ✔✔✔ANSWER-68
Viscosity plus/minus 10 percent
Pour Point - ✔✔✔ANSWER-Temperature at which oil starts to flow
Oxidation - ✔✔✔ANSWER-Oil molecule shears or breaks apart, oxygen attaches
itself to exposed atoms causing oil to break down and decompose, forming acids,
varnish and sludge. Result of this is thicker oil
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