Refrigerants from a refrigeration system that has a burned out motor-compressor assembly can be dangerous because it could contain a high concentration of ____________________.
Fill in the blank(s) with the appropriate word(s).
acid
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A(n) _________ is a piece of trim that covers the hole where the pipe penetrates the wall.
a. slip joint nut b. trap adapter c. rotation limiter d. escutcheon
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When dividing numbers, we often get a whole number followed by a long decimal fraction.
Answer the following statement true (T) or false (F)
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The injector cam profile on a camshaft shows visible deterioration of the hard surfacing. What should be done?
A. polish with an emery cloth B. machine smooth C. replace camshaft D. repair by metalizing
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Welder power sources usually contain controls for adjusting arc voltage, slope, and _____
a. resistance b. inductance c. capacitance d. conductanc
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