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  2. Drainage equation - Wikipedia

    en.wikipedia.org/wiki/Drainage_equation

    The blue figure shows an example of results of a computer aided calculation with the amplified drainage equation using the EnDrain program. [11] It shows that incorporation of the incoming energy associated with the recharge leads to a somewhat deeper water table .

  3. Downspout - Wikipedia

    en.wikipedia.org/wiki/Downspout

    The purpose of a downspout is to allow water from a gutter to reach the ground without dripping or splashing down the building structure. Downspouts are usually vertical and usually extend down to ground level, although may be routed at an angle to avoid architectural features and may discharge onto an intermediate roof.

  4. List of drill and tap sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_drill_and_tap_sizes

    Below is a comprehensive drill and tap size chart for all drills and taps: Inch, imperial, and metric, up to 36.5 millimetres (1.44 in) in diameter. In manufactured parts, holes with female screw threads are often needed; they accept male screws to facilitate the building and fastening of a finished assembly.

  5. 50 Divisions - Wikipedia

    en.wikipedia.org/wiki/50_Divisions

    50 Divisions refers to the 50 divisions of construction information, as defined by the Construction Specifications Institute (CSI)'s MasterFormat beginning in 2004 ...

  6. Pipe recovery operations - Wikipedia

    en.wikipedia.org/wiki/Pipe_recovery_operations

    Use the following equation to calculate the free point from the rig floor: L sp = 735,294(X 2 − X 1)W dp ÷ F where L sp = depth of stuck point (ft), (X 2-X 1)= The stretch of the pipe from the reference point (in.), W dp = weight of drill pipe (lbs/ft), and F = the additional pull required (lbs.) It is important to note that the stretch test ...

  7. Sewerage - Wikipedia

    en.wikipedia.org/wiki/Sewerage

    These include root intrusion, joint displacement, cracks, and hole formations that lead to a significant volume of leakage with an overall risk for the environment and public health. For example, it is estimated that 500 million m 3 of contaminated water per year can leak into soil and ground-water in Germany. [ 4 ]

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Drywall - Wikipedia

    en.wikipedia.org/wiki/Drywall

    Various sized cuts of 1 ⁄ 2 in (13 mm) drywall with tools for maintenance and installation . Drywall (also called plasterboard, dry lining, [1] wallboard, sheet rock, gib board, gypsum board, buster board, turtles board, slap board, custard board, gypsum panel and gyprock) is a panel made of calcium sulfate dihydrate (), with or without additives, typically extruded between thick sheets of ...