Textbook of Engineering Drawing, Second Edition

(Jacob Rumans) #1

5.26 Textbook of Enginnering Drawing------------------


Note: When a line is parallel to V.P. and inclined at an angle of e to H.P., this inclination e will be


seen in the front view. e denotes always the true inclination with H.P.



  1. Therefore from al draw a line at an angle of300 to xy and mark bl such that albl 50mm = true
    length.


To obtain the top view ab look from the top Tv:


Since the line is inclined to H.P., its projection on H.P. i.e., the top view will be in reduced length.



  1. From bl draw a projector to intersect the horizontal line drawn from a at b, ab is the top view
    ofAB.


Problem: A line EF 60 mm long is parallel to VP and inclined 30° to HP. The end E is 10 mm above
HP and 20 mm in front ofVP. Draw the projections of the line.


Solution: (Fig.5.33).


X-4-+-----~---y
o N
e.

Fig. 5.33

Problem: The length of the fromtview of a line CD which is parallel to HP and inclined 30° to VP,
is 50 nun. TheendC of the line is 15 mm in front ofVP and 25 mmabove HP. Draw the projections
of the line and fmd its ture length.
Solution: (Fig.5.34).

x -l--l-----+--y


Fig. 5.34
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