To clean refrigerant by the use of filter dryers is called ____.
A. recovery
B. renew
C. reclaim
D. recycle
Answer: D
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____________________ pipe is coated on the inside and outside with zinc
Fill in the blank(s) with the appropriate word(s).
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What enables a variable-rate, multi-leaf spring to become progressively stiffer as weight is added to a frame?
A. cam brackets make contact close to the center of the spring as it deflects B. the ends of lower leaves in the spring pack come into contact with the upper leaves C. both A and B D. neither A nor B
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Which of the following refrigerant conversions is not considered a drop-in?
a. HFC-134a for HCFC-22 b. HCFC-409A for CFC-12 c. HFC-407C for HCFC-22 d. HCFC-123 for CFC-11
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Describe the operation of servo action.
What will be an ideal response?
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