Textbook of Engineering Drawing, Second Edition

(Jacob Rumans) #1

6.30 Textbook of Enginnering Drawing------------------


Problem: A right circular cone 50mm base diameter and 80mm height rests on the ground on one
of the points of the base circle. Its axis is inclined to H.P at 500 and to V.P at 300 • Draw the
projections ofthe cone.


Solution: (Fig.6.45)


x

Fig. 6.45

6.9 Application of Orthographic Projections


6.9.1 Selection of views


y

The number of views required to describe an object depends upon the extent of complexity involved


in it. The higher the symmetry the lesser the number of views required to be drawn.


6.9.2 Simple solids


The orthographic views of some ofthe simple solids are shown in Fig.6.46. In some cases a solid


can be fully described by one view, in some cases by two views.


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