As our industry has moved away from using CFC refrigerants and is in the process of moving away from HCFC refrigerants, more and more air conditioning and refrigeration applications are utilizing __________ and __________.
What will be an ideal response?
HFC refrigerants, HFC refrigerant blends
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What is the difference between custom and mass-produced products?
What will be an ideal response?
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Eggs that are to be hatched must be
What will be an ideal response?
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Which of the following is true of backhand welding?
A. It has good joint visibility and makes welds with less joint penetration. B. It works well on vertical up and overhead welds. C. It has good bead visibility and makes welds with deeper joint penetration. D. It has a good balance between penetration and reinforcement and is used on automated welding.
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Ultra-low-sulfur diesel fuel has how much sulfur content?
A) 1500 PPM B) 50 PPM C) 15 PPM D) 500 PPM
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