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Engineering Drawing, 2nd Edition by B. C. Rana, M. B. Shah

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16

Reading Orthographic Projections

OBJECTIVES

After reading this chapter, you will be able to

  • Visualize the shape of objects from the given orthographic projections
  • Convert any given view into a sectional view and draw additional views
16.1 INTRODUCTION

Orthographic projections are meant to convey complete information about the shapes and sizes of the projected objects. A draughtsman prepares a drawing from his knowledge of the shape and size of the object, whereas an engineer reads a drawing. Reading a drawing implies visualizing the shape and size of the object by interpreting the projections of the boundaries of the surfaces of the object. By reading a drawing, the engineer on a shop floor should be able to correctly visualize the ...

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