____________ for refrigerant piping come in sizes up to about 2 1/8" in size and are used for larger applications.

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


Ball valves

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A packaged air-conditioning unit is manufactured in one piece with all components including the thermostat.

Answer the following statement true (T) or false (F)

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193 ft?lb @ 4500 RPM

What will be an ideal response?

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The 2.73:1 differential in a sports car is replaced with a 3.55:1 differential. The old speedometer gear has 27 teeth. How many teeth should a replacement gear have to account for the speedometer error created by this differential change?

What will be an ideal response?

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Identify the components of the HVAC system that should be checked at least annually to maintain good performance.

What will be an ideal response?

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