Projection of straight lines inclined to both planes pdf

Bis code of practice for general engineering drawing. Projection of lines 9th lect line inclined to both the planes duration. Draw an arc of radius 20 mm tangent to two given lines inclined at a 600, b 900, and c. True length and inclination of lines with reference plane. Ge8152 syllabus engineering graphics regulation 2017 anna. It is at an angle inclined to the horizontal and profile planes and therefore it appears foreshortened in the top and side views. Projection of straight lines in engineering graphics pdf. Here planes are inclined to both the reference planes. Determination of true lengths and true inclinations by rotating line method yes 12. Straight lines inclined to both of the reference planes. Line inclined to one plane and parallel to the other exercises xa 105. Find the shortest distance between the straight line ab and the line of intersection of planes of projection. A line pq 75mm long has its end p in both hp and vp.

Pdf ge8152 engineering graphics lecture notes, books. A straight line ab of 40 mm length has one of its ends a, at 10 mm from the hp and 15 mm from the vp. Location of a line the location of a line in projection quadrants is described by specifying the distances of its end points from the vp, hp and pp. Assignments problems for practical sheets prasad vijay kane. Ab100 mm, means that true length of the line is 100 mm. Draw the projections of the line if it is parallel to the vp and inclined at 30 to the hp.

Projection of straight lines only first angle projections inclined to both the principal planes determination of true lengths and true inclinations by rotating line method and traces projection of planes polygonal and circular surfaces inclined to both the principal planes by rotating object method. The lines in which the planes meet the reference planes i. Problem is still that the projection is normal to the newprojected plane. Engineering graphics getting started, points, lines tips for section of. The point c is 20mm above hp and 30mm in front of vp.

Surface a is perpendicular to the frontal projection plane. For any other position first assume the given line parallel to both the planes. This document is highly rated by mechanical engineering students and. Draw the projection of line ab and find its true length and inclinations with the hp.

Projection of lines inclined to both the reference planes, projections of a line when true length, true inclinations and position of one end is given, to determine the true length and true inclination of a line when its projections are given, trapezoid method to determine true length and inclinations. Co 1 draw the projection of points and lines located in different quadrants. A straight line pq inclined at 40 0 to vp has pq 60 mm and pq 50 mm. Line inclined to both hp and vp problem 1 a line cd measuring 80mm is inclined at an angle of 30 to hp and 45 to vp. Draw its projections when its end point p is 15 mm above the hp and 60 mm in front of vp. Projections of straight lines inclined to one or both of the reference planes pdf. Line inclined to one plane and parallel to the other plane. Projection of planes introduction no t1, t2 chapter 2 r2 14. Sheet no4 projection of straight linesii a given line may be inclined to both the reference planes i. Pdf this book includes practice problems for engineering drawing course.

Tips for projection of straight linesiiinclined to both. Projections of straight lines inclined to both the reference planes. Inclination of its surface with one of the reference planes will be given. Chapter on computer aided drafting cadr is entirely rewritten with inclusion of 50 projections of planes. Learn vocabulary, terms, and more with flashcards, games, and other study tools. A point t lies on a line p if its horizontal projection lies on the horizontal projection of the. The line is kept inclined at 400 to hp and parallel to vp.

Thus projection of a straight line is the foundation of engineering drawing. Different surfaces and planes form the configuration or shape of any object. A straight line ab of 40 mm length is parallel to the hp and inclined at 30 to. In such cases, length of line and its inclination with hp and vp may be given. Inclination of one of its edges with other reference plane will be given hence this will be a case of an object inclined to both reference planes. Orthogonal projection of a straight line if a straight line p is not a ray of projection not perpendicular to either projection plane, then its horizontal and vertical projections are lines p and p. Tips for projection of straight linesiiinclined to both planes your suggestions for my engineering graphics made easy book. I found a work arround using 3d sketching to drop lines from the end points along the y axis and then setting up a pierce constraint at the inclined plane using a spline approximationthrough points.

Introduction line parallel to one or both the planes 102. Well be positioning this line in different ways that is it may be parallel or inclined to either or both the reference planes hpvp and then draw its orthographic projection aka front and top. Straight line locus of a point, which moves linearly the shortest distance between any two given points. Projections of straight lines inclined to both the. A straight line pq is 100 mm long and makes an angle of 55 o to the hp and 35 o to the vp. The following are the important positions which a straight line can take with respect to two reference planes. Multi choice questions darshan institute of engineering. Hence, in monges projection, a straight line is represented by a pair of projections p,p. Tips for projection of straight lines ii inclined to both planes your suggestions for my engineering graphics made easy book. A straight line pq 80 mm long appears to be of length 50 mm and inclined at 30 0 to xy line in its side view. The end p is both in hp and vp, and 40 mm to the right of lpp. Projection of straight lines, situated in first quadrant only, inclined to both horizontal and vertical planes location of traces only. Lecture 12 projection of line inclined to both the plane free download as powerpoint presentation.

Here is an example problem for drawing the orthographic views for a straight line when inclined to both principal planes. Thus a straight line is the basic conceptual figure using which any object like a machine component or a structural element is represented. Line perpendicular to one plane and parallel to the other. Projections of straight lines inclined to one of the reference planes. Projection of straight lines inclined to both the principal planes yes 11. Perpendicular to both principal planes, parallel to one of the principal planes and inclined to one of the principal planes, perpendicular to other and inclined to both principal planes. May 11, 2020 projections of straight lines ppt, engineering drawing, semester mechanical engineering notes edurev is made by best teachers of mechanical engineering. Projections of such planes are drawn in three stages. Projection of line inclined to both the planes now combining the above two, we conclude that when line is inclined to both the planes. Notice that the surface a appears as a line in the front orthographic view.

Inclined plane sketch projection solidworks forums. This document is highly rated by mechanical engineering students and has been viewed 3294 times. Assume the line to be located in each of the four quadrants by turns. Projections of straight lines ppt, engineering drawing. Draw the projections of the following straight lines. Revolving or moving straight lines in different ways obtains these surfaces.

Engineering drawing basic interview question and answers. Engineering graphics slidespresentationsppt for ktu. Lecture 12 projection of line inclined to both the plane. Watch this video which explain the projections of points. The planes which are inclined to both the reference planes i. Determination of true length and true inclinations of straight lines from the projections not involving traces projection of plane surfaces like rectangle, square, pentagon, hexagon, circle surfaces. Pdf engineering graphics lab manual free download pdf. Projection of simple solids, cylinders, cones, parallelepiped pyramids in. Engineering graphics projections of a straight line. Notations used for straight line true length of the line. The top view is a line inclined at an angle to xy line. The shortest distance between any two points is called a straight line. The end point p of line pq is 10 mm above the hp and its vt is 10 mm below.