How are water pumps in hydronic heating systems checked?

What will be an ideal response?


By measuring the waterflow in the system. Either using a flowmeter built into the system or by measuring the pressure drop across the water pump and comparing it to a pumping performance chart.

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

1. An implied datum is an assumed plane, axis, or point from which a dimensional measurement is made. 2. When dimensioning the location of a feature of size on a part, implied datums should be used. 3. A datum is the origin for dimensional measurements. 4. The datum feature symbol should be specified to be read from the top of a drawing. 5. Where a datum feature symbol or a datum reference frame symbol is repeated on a drawing, it is not necessary to designate them as reference.

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List three characteristics of fluids used in heat exchange pumps.

What will be an ideal response?

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When ductwork fittings are fafricated, there is more waste with fittings than straignt duct.

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

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____ is the most commonly used semiconductor material.

A. Silicon B. Germanium C. Carbon D. Indium

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