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ENGINEERING GRAPHICS By R.Nathan Assistant Professor Department of Mechanical Engineering C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER.

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Presentation on theme: "ENGINEERING GRAPHICS By R.Nathan Assistant Professor Department of Mechanical Engineering C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER."— Presentation transcript:

1 ENGINEERING GRAPHICS By R.Nathan Assistant Professor Department of Mechanical Engineering C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012

2 UNIT – 2 “ PROJECTION OF POINTS” Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012

3 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 QUADRANT H.P – HORIZONTAL PLANE V.P – VERTICAL PLANE H.P V.P

4 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 1 ST - QUADRANT ABOVE H.P & INFRONT OF V.P

5 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 2 ND - QUADRANT ABOVE H.P & BEHIND V.P

6 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 3 RD - QUADRANT BELOW H.P & BEHIND V.P

7 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 4 TH - QUADRANT BELOW H.P & INFRONT OF V.P

8 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 PROJECTION OF POINTS A POINT MAY BE SITUATED IN 1.ANY ONE OF THE FOUR QUADRANTS 2.ANY ONE OF THE TWO PLANES 3.BOTH THE PLANES (ie: ON THE XY LINE)

9 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 PROJECTION OF POINTS A POINT MAY BE SITUATED IN 1.ANY ONE OF THE FOUR QUADRANTS ● ● ● ● ●● ●●

10 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 PROJECTION OF POINTS A POINT MAY BE SITUATED IN 1.ANY ONE OF THE TWO PLANES ● ● ● ●

11 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 PROJECTION OF POINTS A POINT MAY BE SITUATED IN 1.BOTH THE PLANES (ie: on the XY Line) ● ●

12 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 PROJECTION OF A POINT SITUATED IN 1 ST - QUADRANT Front View - above XY line Top View - below XY line

13 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 PROJECTION OF A POINT SITUATED IN 2 nd - QUADRANT Front View - above XY line Top View - above XY line

14 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 PROJECTION OF A POINT SITUATED In 3 rd - QUADRANT Front View - below XY line Top View - above XY line

15 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 PROJECTION OF A POINT SITUATED In 4 th - QUADRANT Front View - below XY line Top View - below XY line

16 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 PROJECTION OF POINTS A POINT MAY BE SITUATED IN 1.ANY ONE OF THE TWO PLANES ● ● ● ●

17 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 PROJECTION OF POINTS LIES ON H.P

18 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 PROJECTION OF POINTS LIES ON V.P

19 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 PROJECTION OF POINTS SITUATED IN BOTH THE PLANES

20 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 EXAMPLE:- DRAW THE PROJECTIONS OF THE FOLLOWING POINTS ON THE SAME REFERENCE LINE (1)A IN THE H.P AND 20 mm INFRONT THE V.P (2)C IN THE V.P AND 30 mm ABOVE H.P (3)B IN BOTH V.P AND H.P

21 Engineering Graphics Lecture Notes C.R.ENGINEERING COLLEGE Alagarkovil, Madurai - 625301 I - SEMESTER 04.10.2012 ANNA UNIVERSITY QUESTIONS YEAR – JAN 2010 – R2008 Draw the projection of the following points on a common reference line. (1)A, on H.P and 35 mm behind V.P (2)B, 5 mm below H.P and 40 mm in front of V.P (3)C, 25 mm above H.P and on V.P YEAR – JAN 2010 – R2007 Mark the projections of the following points on a common reference lines. (1)A, 35 mm behind to V.P and 20 mm below the H.P (2)B, 30 mm in front of the V.P and 30 mm above the H.P (3)C, 40 mm behind the V.P and 10 mm above the H.P (4)D, 45 mm below the H.P and in the V.P (5)E, 35 mm behind the V.P and in the H.P

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