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A machinist square or engineer's square is the metalworkers' equivalent of a try square. It consists of a steel blade inserted and either welded or pinned into a heavier body at an angle of 90°. Usually a small notch is present at the inside corner of the square.
A note that is called out in specific spots in the field of the drawing. It is numbered with a stylized flag symbol surrounding the number. A general note applies generally and is not called out with flags. FL Floor Level Floor Level of an existing or proposed building or concrete pad FN or F/N: flag note, flagnote; find number: 1.
It is traditionally defined as the area of one chain by one furlong (66 by 660 feet), which is exactly equal to 10 square chains, 1 ⁄ 640 of a square mile, or 43,560 square feet, and approximately 4,047 m 2, or about 40% of a hectare. Acrow prop – or BS prop is a piece of construction equipment. It is a telescopic tubular steel prop, used ...
(plural: atria) The inner court of a Roman house; in a multi-story building, a toplit covered court rising through all stories. Attic A small top story within a roof above the uppermost ceiling. The story above the main entablature of a classical façade.
Construction engineering, also known as construction operations, [1] is a professional subdiscipline of civil engineering that deals with the designing, planning, construction, and operations management of infrastructure such as roadways, tunnels, bridges, airports, railroads, facilities, buildings, dams, utilities and other projects. [2]
A square incorporating a plumb bob to check if something is level, and for making horizontal markings. Positioning square, or clamping square, or assembly square An L-shaped square used in woodworking for checking an inside or outside angle when assembling workpieces, such as boxes. They are designed to be rigid enough to be clamped in place ...
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A try square or try-square is a woodworking tool used for marking and checking 90° angles on pieces of wood. Though woodworkers use many different types of square, the try square is considered one of the essential tools for woodworking. [1] The square in the name refers to the 90° angle.