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Oblique sections are useful to show the _____________(a) interior shapes(b) oblique lines(c) foreshortened features(d) projected featuresThis question was addressed to me during an interview.This interesting question is from Oblique Projection topic in chapter Development of Surfaces, Isometric Projections, Perspective Projections & Transformation of Projections of Civil Engineering Drawing

Answer»

Right choice is (a) interior shapes

Explanation: Oblique DRAWING is ALSO the crudest “3D” drawing method but the easiest to master. One way to draw using an oblique view is to draw the side of the object you are looking at in two dimensions, i.e. flat, and then draw the other sides at an angle of 45°, but instead of drawing the sides full size they are only drawn with half the DEPTH creating ‘FORCED depth’ – adding an element of realism to the object. Even with this ‘forced depth’, oblique drawings look very unconvincing to the eye. For this reason oblique is rarely USED by professional designers and engineers.



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