Explain how an adaptive defrost cycle operates
What will be an ideal response?
Adaptive defrost systems initiate the defrost system based upon measured parameters rather than a timed cycle. As an example, if the registered air flow through the coil is reduced due to ice build-up then a defrost cycle will be initiated. The case controller does not necessarily require an actual air flow measurement. Electronically controlled expansion valves can act as mass flow meters. This can be accomplished by comparing the energy admission on the refrigerant side of the valve to the energy admission on the air side of the valve.
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? Identify and state the historical significance of common law.
What will be an ideal response?
A lot of practice is required to develop the speed and skill needed to prevent ____.
A. contaminants from forming B. iron from rusting C. the electrode from sticking to the plate D. an excessive drop in voltage
Silly Putty is ____.
A. ductile but has high impact strength B. ductile but has low impact strength C. brittle but has high impact strength D. tough but has low impact strength
Infectious diseases, which are usually contagious, are caused by microorganisms
Indicate whether the statement is true or false