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  4. Principles and Practice of Engineering exam - Wikipedia

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    Principles and Practice of Engineering Examination; Acronym: PE: Type: Pencil-and-paper exam; Computer-based exam (Select exams only) Administrator: National Council of Examiners for Engineering and Surveying: Skills tested: Analytical reasoning, quantitative reasoning, discipline-specific subjects: Purpose: Professional licensure: Year started ...

  5. Heating, ventilation, and air conditioning - Wikipedia

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    Free cooling systems can have very high efficiencies, and are sometimes combined with seasonal thermal energy storage so that the cold of winter can be used for summer air conditioning. Common storage mediums are deep aquifers or a natural underground rock mass accessed via a cluster of small-diameter, heat-exchanger-equipped boreholes.

  6. Air conditioning - Wikipedia

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    Air conditioning equipment will reduce the absolute humidity of the air processed by the system if the surface of the evaporator coil is significantly cooler than the dew point of the surrounding air. An air conditioner designed for an occupied space will typically achieve a 30% to 60% relative humidity in the occupied space.

  7. General contractor - Wikipedia

    en.wikipedia.org/wiki/General_contractor

    A general contractor is a construction manager employed by a client, usually upon the advice of the project's architect or engineer. [7] General Contractors are mainly responsible for the overall coordination of a project and may also act as building designer and construction foreman (a tradesman in charge of a crew).

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