When evacuating a system, the technician should use __________ or __________ hoses as synthetic hoses are __________ (they allow gases to penetrate)

What will be an ideal response?


copper, corrugated stainless steel, permeable

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Determine the cost to finish the slab in Problem 51 using a productivity of 0.011 labor hours per square foot and an average labor rate of $29.92 per labor hour.

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Which of the following nations was NOT conquered by Hitler's Germany between September 1939 and June 1940?

A. Norway B. the Netherlands C. France D. Poland E. Finland

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In an air-conditioning system using a TX valve on the evaporator, if the head pressure increases 20 psig, the suction pressure will ______________________________.

Fill in the blank(s) with the appropriate word(s).

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The heat rejected by the condenser:

A) Has no relationship to either the evaporator or compressor. B) Equals the heat absorbed by the evaporator. C) Equals the heat added by the compressor. D) Equals the heat absorbed by the evaporator plus the heat added by the compressor.

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