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  2. CAD standards - Wikipedia

    en.wikipedia.org/wiki/CAD_standards

    Out Line 0.20 or 0.25 White, Cyan, Yellow, Blue Hidden Line 0.00 or 0.05 Blue, Gray, 241 Center Line 0.10 or 0.15 Green, Red, Blue Note 0.18 or 0.20 White, Cyan, Green, 41 Thin Line 0.00 or 0.05 Gray, 08, 111 Reference Line 0.000 Magenta, Gray Hatch Line 0.000 Magenta, Green, Gray, red Color-9 to 256 0.000 Dimension line Leader Line with Arrows

  3. Floor marking tape - Wikipedia

    en.wikipedia.org/wiki/Floor_marking_tape

    OSHA does not have a specific standard for floor marking regarding color or design. However other rules and policy interpretations has provided some guidelines. 1910.176(a) and 1910.22(b)(2), requires when mechanical handling equipment, such as forklifts and Powered industrial trucks are used, that permanent aisles and passageways must be marked.

  4. Tape correction (surveying) - Wikipedia

    en.wikipedia.org/wiki/Tape_correction_(surveying)

    The tape will pulled less than its standard length when a tension less than the standard tension is applied, making the tape too long. A tape stretches in an elastic manner until it reaches its elastic limit, when it will deform permanently and ruin the tape. The correction due to tension is given by:

  5. Vanity height - Wikipedia

    en.wikipedia.org/wiki/Vanity_height

    The top 370m (equivalent to an 85-story building), or 37% of the building's total height, will be unusable. When vanity height is excluded, the height progression of the world's tallest buildings looks much more modest. [4] [5] The CTBUH requires a structure's vanity height to be under 50% to be defined as a "building."

  6. Clearance (civil engineering) - Wikipedia

    en.wikipedia.org/wiki/Clearance_(civil_engineering)

    In civil engineering, clearance refers to the difference between the loading gauge and the structure gauge in the case of railroad cars or trams, or the difference between the size of any vehicle and the width/height of doors, the width/height of an overpass or the diameter of a tunnel as well as the air draft under a bridge, the width of a lock or diameter of a tunnel in the case of watercraft.

  7. Technical lettering - Wikipedia

    en.wikipedia.org/wiki/Technical_lettering

    Central Line is the imaginary line in the middle of each line or line element which is a constitutive part of a graphic character set. If we consider d as the width of the line element and h as the height of the line element, then the two standard ratios for d/h are: 1/14 and 1/10, which are feasible because they result in a minimum number of ...

  8. Ceiling - Wikipedia

    en.wikipedia.org/wiki/Ceiling

    A ceiling can also be the upper limit of a tunnel. The most common type of ceiling is the dropped ceiling, [citation needed] which is suspended from structural elements above. Panels of drywall are fastened either directly to the ceiling joists or to a few layers of moisture-proof plywood which are then attached to the joists. Pipework or ducts ...

  9. Template:Line-height - Wikipedia

    en.wikipedia.org/wiki/Template:Line-height

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