When brazing on a refrigeration line with an attached service valve:
A) The joint should be heated slowly to prevent overheating the valve.
B) The line should be attached with quick-setting cement instead of brazed.
C) The joint should be heated quickly to avoid overheating the valve.
D) The valve should be cut out of the system prior to brazing to avoid overheating.
C
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Given the graph below, the historical approach to supporting major crop prices involved the Commodity Credit Corporation (CCC):
A) Achieving a gain in producer surplus of areas 3 + 4.
B) Purchasing the excess supply that would occur at the desired price PG.
C) Causing consumer surplus to decline by area 5.
D) All of the above.
What is the major difference between discontinuities and defects??
What will be an ideal response?
A filter-drier always traps debris and contaminants on the first pass through the filter.
a. True b. False
What class fire extinguisher should be used to safely extinguish a flammable liquid?
A) Class A B) Class C C) Class B D) Class D