1.

The figure below represents the ________ view of the pentagonal base joined to a circular top.(a) side(b) front(c) top(d) bottomThe question was asked in final exam.My question is from Intersection of Surfaces topic in division Development of Surfaces, Isometric Projections, Perspective Projections & Transformation of Projections of Civil Engineering Drawing

Answer»

Correct option is (c) top

Easiest explanation: Figure 1 shows the top view and PICTORIAL view of two transition pieces: (a) the pentagonal base JOINED to a circular top and (b) circular base connected to a square top. The lateral surface of the transition piece must be divided in to curved and non-curved triangles as shown in figure 1.Divide the curved cross section in to a number of equal parts equal to the number of SIDES of non-curved cross-section. Division points on the curved cross section are obtained by drawing bisectors of each side of the non-curved cross section. The division points thus obtained when connected to the ends of the respective sides of the non-curved cross-section produces plane triangles. In between two plane triangles there LIES a curved triangle. After dividing in to a number of triangles, the development is drawn by TRIANGULATION method.



Discussion

No Comment Found

Related InterviewSolutions