| sensitive element of a temperature-operated control.
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| 1. The ratio of the true power to the apparent power. 2. Correction coefficient for the changing current and voltage values of a-c power.
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| A legal instrument that authorizes one to act as the agent of another; the agent is called an attorney in fact, but does not have to be a licensed attorney.
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| A carpet layers tool; an extension-type version of the knee kicker, with larger teeth arranged in a patent head which can be adjusted for depth of bite, used to stretch larger areas of carpet than can be handled by the knee kicker.
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| An apparatus or device used in construction, powered by electric current.
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| see Mechanical Trowel.
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| 1. A source or means of supplying energy, such as electricity. 2. Time rate at which work is done or energy emitted.
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| A door used for human passage with a mechanism that helps to open the door, or relieves the opening resistance of a door, upon the activation of a switch or a continued force applied to the door itself.
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| Hydraulic cement obtained by grinding a mixture of fused natural material, such as volcanic ash or trass with hydrated lime; can be used to replace some of the portland cement to lower cost and in some cases improve the concrete; also spelled puzzolan.
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| Plastic Pipe and Fitting Association.
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| Polished Plate Glass.
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| Plastic Pipe Institute.
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| Parts Per Million.
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| A standard peaked roof truss configuration where the vertical web members and the top chord are in compression while the sloping web members and the bottom chord are in tension.
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| The practice of a skill, art, trade, or profession.
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| A concrete horizontal structural member that is cast and cured in other than its final position, on- or off-site.
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| A concrete column that has been cast and cured in other than its final position.
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| Concrete parts that are cast on- or off-site and, after curing and hardening, are installed in their final position of use.
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| A horizontal concrete beam placed over an opening that has been cast and cured in other than its final position.
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| An underground enclosed structure that has been cast and cured in other than its final position, usually cast in sections.
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| A concrete member, cast and cured in other than its final position and relatively thin with respect to other dimensions.
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| A sewage system underground tank that has been cast and cured in other than its final position.
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| A flat, horizontal, molded layer of reinforced concrete, cast and cured in other than its final position, sometimes referred to as precast planks, often containing hollow cores.
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| special shapes or ornamental objects of precast masonry or concrete.
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| Marble aggregate concrete that is cast and cured in other than its final position, and ground smooth for decorative purposes.
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| A wall that has been cast and cured in other than its final position.
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| A concrete component or member cast and cured in other than its final position.
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| 1. A substance separated from a solution by chemical action or by application of heat or cold. 2. Insoluble compound formed when chlorine or alum added to pool water reacts with other chemicals or minerals.
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| Rain, hail, or snow falling to the ground.
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| The initial coating of filter aid on the septum of a diatomaceous earth filter.
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