Crawshaw, Fred D. (Fred Duane), b. 1874, Phillips, J. D. (James David), 1869- joint author · Chicago, New York, Scott, Foresman and company · leaf 67
qual?(c) On the same horizontal edge? (d) Are the perspectives ofequal vertical lengths at different distances from the observerequal ? 6. (a) What is the angle of inclination? (b) How does itvary? 62 MECHANICAL DRAWING 7. (a) In what position on the drawing board is the paperfastened? (b) How is… … Pig. 62, Bird House (Dimensioned Perspective) essential difference? (d) What movements are made to producethe line ? 10. (a) What is meant by constructive stage? (b) Finish-ing stage ? 11 In what way does a scale of levels assist in making aperspective of a rectangular object ? 12. (a) Where are…
Mechanical drawing
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