Air conditioning and refrigeration systems are intended to operate with the correct amount of refrigerant to help ensure efficient operation. List six problems that can result if a system operates from a deficiency of refrigerant.
What will be an ideal response?
inadequate cooling
increased system run time
increased energy usage
decreased equipment life
improper compressor cooling
increased humidity in the occupied space
mold issues
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A heat pump is to deliver 59 kW of heat to a warm space, while using 15 kW of power. Determine the coefficient of performance of the heat pump.
Given: Q?H = ?59 kW; W? = ?15 kW What will be an ideal response?
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When all four corners of a rectangle are ____ degrees, the diagonals are equal.
A. 30 B. 45 C. 90 D. 120
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List five methods of disposing of municipal solid wastes
What will be an ideal response?
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All of the following are elements for corrosion to occur EXCEPT:
A. Aluminum. B. Moisture. C. Oxygen. D. Heat.
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