Question 81Asked in UGC NET Computer Science, November 2017 (Paper II & III, Selected Questions)

Which of the following is not true in case Oblique Projections?

  1. AParallel projection rays are not perpendicular to the viewing plane
  2. BParallel lines in space appear parallel on the final projected image
  3. CUsed exclusively for pictorial purposes rather than formal working drawings
  4. DProjectors are always perpendicular to the plane of projection
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Correct answer: (D) Projectors are always perpendicular to the plane of projection

Explanation

In oblique projection, the parallel projection rays are not perpendicular to the viewing plane but strike it at an angle other than 90°; parallel lines in space appear parallel on the projected image; and it is used for pictorial purposes rather than formal working drawings. Projectors perpendicular to the plane of projection describe orthographic projection, so (d) is not true.

From UGC NET Computer Science PYQ, November 2017 (Paper II & III, Selected Questions)

This is question 81 of UGC NET Computer Science PYQ, November 2017 (Paper II & III, Selected Questions). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.