Cyclopedia of Civil Engineering: A General Reference Work on Surveying, Railroad Engineering, Structural Engineering, Roofs and Bridges, Masonry and Reinforced Concrete, Highway Construction, Hydraulic Engineering, Irrigation, River and Harbor Improvement, Municipal Engineering, Cost Analysis, Etc, Volumen1American School of Correspodence, 1909 - 391 páginas |
Otras ediciones - Ver todas
Términos y frases comunes
adjustment alidade azimuth base line border lines calculated center line chain Civil Engineers clamp clinometer compass cone construction convenient corners correction course cross-hairs curve cylinder determine diagonal direction distance divided double longitude draw drawn Dumpy level edge elevation ellipse equal error feet field frustum graduated ground line Gunter's chain height horizontal plane hyperbola inches long instrument intersection isometric latitude length and bearing letters line of collimation line of sight lower motion measure method needle oblique projection paper parallel perpendicular plate plumb-bob position prism Problem projection pyramid radius right angles rod reading scale screws shade lines shown in Fig side solar space spirit level square stadia stake station straight line surface survey T-square tangent tape target telescope topographic transit transit telescope triangle true length true meridian tube turn upper vernier vertical axis vertical circle vertical plane
Pasajes populares
Página 257 - A diameter of a circle is a straight line drawn through the center and terminated both ways by the circumference, as AC in Fig.
Página 375 - Accompanying these are examples for practice which will aid the reader in fixing the principles in mind. In the following pages are given a large number of test questions and problems which afford a valuable means of testing the reader's knowledge of the subjects treated.
Página 262 - A Circle is a plane figure bounded by a curved line every point of which is equally distant from a point within called the center.
Página 261 - A right cylinder or a cylinder of revolution is a cylinder generated by the revolution of a rectangle about one side as an axis.
Página 166 - the sections shall be numbered respectively, beginning with the number one in the northeast section, and proceeding west and east alternately, through the township, with progressive numbers till the thirty-sixth be completed.
Página 259 - In order to obtain accurate measurements each degree is divided into 60 equal parts called minutes and each minute into 60 equal parts called seconds.
Página 261 - A cone is a solid bounded by a conical surface and a plane which cuts the conical surface. The plane is called the base and the curved surface the lateral area.
Página 260 - The vertices of the triangles form the vertex of the pyramid. The altitude of the pyramid is the perpendicular distance from the vertex to the base. A pyramid is called triangular, quadrangular, etc., according to the shape of the base.
Página 168 - And in all cases where the exterior lines of the townships thus to be subdivided into sections or half sections shall exceed, or shall not extend six miles, the excess or deficiency shall be specially noted, and added to or deducted from the western or northern ranges of sections or half sections in such township, according as the error may be in running the lines from east to west or from south...
Página 114 - To make the line of collimation perpendicular to the horizontal axis of the instrument; and (6) to make the horizontal axis of the telescope perpendicular to the vertical axis of the instrument.