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, Volume 1American school of correspondence, 1909 - Civil engineering |
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Common terms and phrases
adjustment alidade azimuth base line border lines bubble calculated center line chain Civil Engineers clamp clinometer compass cone construction convenient corners correction course cross-hairs curve cylinder departure determine diagonal direction distance divided double longitude drawn 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 A B line of collimation line of sight lower motion measured method needle oblique projection paper parallel perpendicular placed plate plumb-bob position prism Problem projection pyramid radius rectangle right angles rod reading scale screws shade lines shown in Fig side slope solar space square stadia stake station straight line surface survey T-square tangent tape target telescope topographic transit transit telescope triangle true length tube turn UNIVERSITY OF CALIFORNIA upper vernier vertical axis vertical circle vertical plane
Popular passages
Page 249 - The diameter of a circle is a straight line drawn through the center and terminating in the circumference.
Page 363 - 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.
Page 254 - 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.
Page 166 - May 18th, 1796, provided for the appointment of a surveyor general, and directed the survey of the lands northwest of the Ohio River, and above the mouth of the Kentucky River.
Page 251 - 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.
Page 253 - 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.
Page 259 - Cycloid. The cycloid is a curve generated by a point on the circumference of a circle which rolls on a straight line tangent to the circle.
Page 265 - With ? as a center and any convenient radius (about 2£ inches) draw the indefinite arc ED cutting the line A C. Now with the same radius and with D as a center, draw an arc P Q. Set...
Page 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.
Page 239 - II. To draw the squares for the six figures, proceed as follows : Measure off two inches on either side of the vertical center line and draw light pencil lines through these points parallel to the vertical center line. These lines will form the sides AD and BC of Figs.