What are the two major functions of refrigerant piping?
What will be an ideal response?
The two functions of refrigerant piping are to carry refrigerant and oil.
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Axle windup is most often a problem with ________
A) Vehicles with a live rear axle B) Front-wheel drive vehicles C) Both A and B D) Neither A nor B
Technician A says an incorrect tire and wheel size can affect bearing life. Technician B says changing tire and wheel sizes does not affect antilock brake systems. Who is correct?
A. A only B. B only C. both A and B D. neither A nor B
When using a motor other than a NEMA Design A or B with a VFD, what added precaution must be taken?
a. Use a totally enclosed motor b. Add special drive circuitry c. Add an IGBT to the motor d. Increase supply voltage by 10 percent
Water treatment is necessary to protect the system components against
A) scale, corrosion, and fouling B) fouling, freezing, and evaporating C) freezing, evaporation, and sublimation D) hypothermia, outgassing, and corrosion