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(Solved): ENGINEERING DESIGN GRAPHICS Pages 143-149, Obliques and Isometrics 4. On how many isometric surface ...
ENGINEERING DESIGN GRAPHICS Pages 143-149, Obliques and Isometrics 4. On how many isometric surfaces can the 1. When the viewer looks at an isometric of a isometric ellipse template be used to reprecube, he sees (A) the point view of its diagsent cylindrical holes? (A) 1, (B) 2, (C) 3 , onal, (B) true size of one surface, (C) a true(4) 4 size of two surfaces, (B) an edge view of one surface 5. An oblique with the receding axis drawn half size is a (A) cavalier oblique, (B) cabinet 2. Which of the following is true of the axes in oblique, (C) minor oblique, (D) micro an isometric drawing? (A) all are equally foreshortened, (B) all three planes are un6. An advantage of oblique pictorials is that equal, (C) only two are equal, (D) one apcircles are (A) true size on the frontal pears as an edge plane, (B) true size on the top plane, (C) edge views, (D) all of the above 3. How should the major diameter of the elliptical end of a cylinder be positioned in an 7. The receding axis of a cavalier oblique must isometric drawing? (A) parallel to the cylinbe drawn at what angle with with the horider's axis, (B) at 30 degrees to the axis, (C) zontal? (A) 30 degrees, (B) 45 degrees, (C) perendicular to cylinder's axis, (D) at 30 60 degrees, (D) an angle between 0 and 90 degrees with any isometric axis degrees
Expert Answer
1. When a viewer looks at an isometric of a cube, they see a true-size of two surfaces. In an isometric drawing, each surface of the cube is projected onto the isometric plane without any distortion or foreshortening. Therefore, the viewer can see two surfaces of the cube in their true size, without any distortion. 2. In an isometric drawing, all three axes are equally foreshortened. This means that the distances along each axis are compressed by the same amount, so that the resulting drawing has a consistent appearance and proportions. 3. The major diameter of the elliptical end of a cylinder should be positioned perpendicular to the cylinder's axis in an isometric drawing. This is because in an isometric projection, the axis of the cylinder is projected at an angle of 30 degrees to the horizontal plane, so the major diameter appears as a true size on the frontal plane.