Question

194 Engineering Drawing
ICh.
ats
4. A point P is 15 mm above the H.P. and 20 mm in front of the V.P. Another point Q is 25 mm behind the V.P. and 40 mm below the H.P. Draw projections of P and Q keeping the distance between their projectors equal to 90 mm Draw straight lines joining (i) their top views and (ii) their front views.

Answer 1

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Answer 2

Standard notations are used to obtain point projections in space:

1. Capital letters A, B, C, D, etc. are used to represent the actual points in space.

2. The corresponding lowercase letters with dashes, such as a', b', c', d', etc., represent the front views, while the corresponding lowercase letters, such as a, b, c, d, etc., denote the top views.

3. Using a 2H pencil, projectors are always drawn as a series of continuous, thin lines.

4. A H pencil is used to draw the visible points.

5. A HB pencil is always used to create lettering. Point Projection in the I-Quadrant.

Here, according to the given information, we are given that, a point P is 15 mm above the H.P. and 20 mm in front of the V.P. Another point Q is 25 mm behind the V.P. and 40 mm below the H.P. Then, the projections are drawn using the above rules.

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