What is the true shape of section?
True shape of section: The true form of the cut surface is called true shape of section. It is obtained by viewing the object normal to the cut surface and projecting it on a plane parallel to the section plane.
Why do we take the section of a solid?
A primary reason for creating a section view is the elimination of hidden lines so that a drawing can be more easily understood or visualized. Traditional section views are based on the use of an imaginary cutting plane that cuts through the object to reveal interior features.
What are the possible positions of solids?
- TYPES OF SOLIDS.
- POSSIBLE POSITIONS.
- Axis parallel to both planes.
- Axis perpendicular to one plane (must be parallel to the other plane)
- Axis Inclined to one plane and parallel to the other plane.
- Axis inclined to both planes.
How do you draw a projection of a solid?
the solids are placed initially in the simple position and then one or two auxiliary planes are setup to obtain the views in the required position. one of the square faces containing that edge is inclined at 300 to HP and the edge on which it rests being inclined to 600 to VP. Draw its projections.
What is projection solid?
-The shape of the solid is described by drawing its two orthographic views usually on the two principle planes i.e. H.P. & V.P. PROJECTIONS OF SOLIDS Definition of Solid: A solid is a three dimensional object having length, breadth and thickness. ...
What are different types of solids in engineering drawing?
PROJECTIONS OF SOLIDS SH1132 Engineering Graphics F. Y. B. TECH. Triangular Square Pentagonal Hexagonal Cone Tetrahedron Pyramids ( A solid having Four triangular faces) Group B Solids having base of some shape and just a point as a top, called apex.
What are projection lines?
Projection lines are extensions of lines that assist in 2D drawing. ... For example, in a drawing, you can use projection lines on an auxiliary view to enable creation of additional views with proper alignment and size.
What are the points to be considered while obtaining the projection of a solid?
17. Therefore, the projection of a solid on the plane to which its axis is perpendicular will show the true shape and size of its base. Hence, when the axis is perpendicular to the ground, i.e. to the H.P., the top view should be drawn first and the front view projected from it.
When a solid is cut by a plane parallel to the base it is called?
(Ans: a) 24-If a solid is cut by a cutting plane parallel to the base of the solid and top part is removed, the remaining part is called. Frustum of a solid. Truncated solid.
When an object is cut by a section plane?
When an object is cut by a section plane, parallel to H.P. and perpendicular to V.P., then the sectional view of the object is obtained in top view. For ex - Frustum , which is initially a cone , but it is cut by a section plane, parallel to H.P. and perpendicular to V.P. , top view is obtained.
Which of the following is not the purpose of cutting plane?
Which of the following is not the purpose of using cutting (section) plane? ... Explanation: The projection of section plane on the plane to which it is perpendicular gives a straight line which is parallel, perpendicular, inclined as due to section if it is parallel, perpendicular, inclined to reference planes. 6.
What is right side view?
The right side view of an object shows the depth and the height dimensions. The right side view is projected onto the profile plane of projection, which is a plane that is parallel to the right side of the object.
What is the 1st angle projection?
First-angle projection: In this type of projection, the object is imagined to be in the first quadrant. Because the observer normally looks from the right side of the quadrant to obtain the front view, the objects will come in between the observer and the plane of projection.
What are the 6 principal views?
What are the six principal views of an object? Front, top, right side, left side, rear, and bottom.
What is left side view?
3D views are named from the perspective of the viewer The Left view, is on the left of the object when you look at the front, from the outside of the object.
What are the three principal views?
Beside above, what are three principal views? Figure 8.
What is the principal view?
Principal views There are six principal views in a multiview orthographic projection. These are the front, back, top, bottom, and left- and right-side views. Of these views or planes, three are referred to as primary planes of projection (vertical, horizontal, and profile).
What is a pictorial drawing?
Pictorial Sketches • A Pictorial drawing is a view of an object as it would be seen by an observer who looks at the object either in a chosen direction or from a selected point of view. • Pictorial drawings often are more readily made and more clearly understood than are front, top, and side views of an object.
What are the different types of pictorial drawing?
There are many types of pictorial drawings and these include isometric, oblique, axonometric and planometrics and the four drawings figures 164 – 167 illustrate the differences between them. Of these, isometric drawings are the most common.
What are the three main types of pictorial drawings?
The three main types of pictorial drawings that are extensively used in architectural presentations are perspective drawings, isometric drawings, and oblique drawings.
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