WELCOME TO

ENGINEERING GRAPHICS

S1 ME 2017

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SESSION 1

ORTHOGRAPHIC PROJECTIONS

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 2 n d
Q u a
d r a
n t

THE QUADRANT
F.V.
1 s t
Q u a
d r a
SYSTEM
n t
Y

3 r d X O b s
Q u a e r v
d r a e r
n t

4 t h
Q u a
d r a
n t

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 FIRST ANGLE
FOR T.V.
PROJECTION
IN THIS METHOD,
THE OBJECT IS ASSUMED TO BE
SITUATED IN FIRST QUADRANT V.P. P.P.
MEANS
ABOVE HP & INFRONT OF VP. F.V. S.V.
OBJECT IS INBETWEEN C T
OBSERVER & PLANE. J E
O B
VP PP

FV LSV . FO
S.V R
X Y R F.V
FO .
TV

HP

ACTUAL PATTERN OF
PLANES & VIEWS
IN
FIRST ANGLE METHOD
OF PROJECTIONS Downloaded from Ktunotes.in
 FOR T.V.
THIRD ANGLE
PROJECTION
IN THIS METHOD,
THE OBJECT IS ASSUMED TO BE
SITUATED IN THIRD QUADRANT
( BELOW HP & BEHIND OF VP. )

PLANES BEING TRANSPERENT

AND INBETWEEN
OBSERVER & OBJECT.
P.P.
T V.P.
E C
B J
O
TV
X Y S.V.
F.V.
LSV FV

ACTUAL PATTERN OF
PLANES & VIEWS
OF
THIRD ANGLE PROJECTIONS

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 FOR T.V.
1
F.V. S.V.

ORTHOGRAPHIC PROJECTIONS

FRONT VIEW L.H.SIDE VIEW

FO
R
. F.V
S. V .
R
FO

x y

PICTORIAL PRESENTATION IS GIVEN TOP VIEW

DRAW THREE VIEWS OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
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 FOR T.V.
2
S.V.
F.V.

ORTHOGRAPHIC PROJECTIONS

FRONT VIEW L.H.SIDE VIEW

X Y
. FO
. V R
S F.V
R .
FO

TOP VIEW

PICTORIAL PRESENTATION IS GIVEN

DRAW THREE VIEWS OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
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 FOR T.V.

S.V. 3
F.V.

ORTHOGRAPHIC PROJECTIONS

FRONT VIEW L.H.SIDE VIEW

FO
. R
S. V
FO
R
F.V
. X Y

TOP VIEW

PICTORIAL PRESENTATION IS GIVEN

DRAW THREE VIEWS OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
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 4
FOR T.V.

S.V.
F.V.
ORTHOGRAPHIC PROJECTIONS

FRONT VIEW L.H.SIDE VIEW

X Y
. FO
S.V R
F.V
R
FO .

TOP VIEW

PICTORIAL PRESENTATION IS GIVEN

DRAW THREE VIEWS OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
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 FOR T.V.
5

F.V. S.V.

ORTHOGRAPHIC PROJECTIONS

FRONT VIEW L.H.SIDE VIEW

V.
S.
R
FO FO
R
F.V X Y
.

TOP VIEW
PICTORIAL PRESENTATION IS GIVEN
DRAW THREE VIEWS OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
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 6
FOR T.V.

F.V. S.V. ORTHOGRAPHIC PROJECTIONS

FRONT VIEW L.H.SIDE VIEW

. FO X Y
S . V
R R
F.V
FO .

TOP VIEW

PICTORIAL PRESENTATION IS GIVEN

DRAW THREE VIEWS OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
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 7
FOR T.V.
S.V.
F.V.

ORTHOGRAPHIC PROJECTIONS

FRONT VIEW L.H.SIDE VIEW

FO
R
F.V
.
V.
S .
R X Y
FO

PICTORIAL PRESENTATION IS GIVEN TOP VIEW

DRAW THREE VIEWS OF THIS OBJECT

BY FIRST ANGLE PROJECTION METHOD
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 9
FOR T.V.
ORTHOGRAPHIC PROJECTIONS

FRONT VIEW L.H.SIDE VIEW

X Y

FO
. R
F.V
S.V .
R
FO

TOP VIEW
PICTORIAL PRESENTATION IS GIVEN
DRAW THREE VIEWS OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
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 10
FOR T.V. ORTHOGRAPHIC PROJECTIONS

FRONT VIEW L.H.SIDE VIEW

X Y

S.V.
R
FO
FO
R
F.V
.

PICTORIAL PRESENTATION IS GIVEN TOP VIEW

DRAW THREE VIEWS OF THIS OBJECT

BY FIRST ANGLE PROJECTION METHOD

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 FOR T.V. 11
ORTHOGRAPHIC PROJECTIONS

FRONT VIEW L.H.SIDE VIEW

FO
R
F.V X Y
.

V.
S.
R
FO

TOP VIEW

PICTORIAL PRESENTATION IS GIVEN

DRAW THREE VIEWS OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
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 12
FOR T.V.

ORTHOGRAPHIC PROJECTIONS

FRONT VIEW L.H.SIDE VIEW

X Y

. FO
S.V R
F.V
R .
FO

PICTORIAL PRESENTATION IS GIVEN TOP VIEW

DRAW THREE VIEWS OF THIS OBJECT

BY FIRST ANGLE PROJECTION METHOD

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 STUDY 13
Z
ILLUSTRATIONS FOR T.V.
ORTHOGRAPHIC PROJECTIONS

35
FV

35

10
x y

10 20 30

FO
R 40
F.V
. 70

TV
O
PICTORIAL PRESENTATION IS GIVEN
DRAW FV AND TV OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
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 STUDY 14
Z
ILLUSTRATIONS

FOR T.V. ORTHOGRAPHIC PROJECTIONS

FV

30 10 30 SV

30

10

30
x y

. FO
S.V R
R F.V
FO .

ALL VIEWS IDENTICAL

TV
PICTORIAL PRESENTATION IS GIVEN
DRAW THREE VIEWS OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
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 STUDY 15
Z
ILLUSTRATIONS
ORTHOGRAPHIC PROJECTIONS
FOR T.V.
ALL VIEWS IDENTICAL

FV SV

x y

10
40 60

40
TV
60
PICTORIAL PRESENTATION IS GIVEN
DRAW THREE VIEWS OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
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 FOR T.V.
ORTHOGRAPHIC PROJECTIONS 16
ALL VIEWS IDENTICAL

FV SV

x y
10

V. FO
S . R
R F.V
FO .
40 60

PICTORIAL PRESENTATION IS GIVEN 40 TOP VIEW

DRAW THREE VIEWS OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD 60

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 17

ORTHOGRAPHIC PROJECTIONS

FRONT VIEW L.H.SIDE VIEW

30 SQUARE
40 20

50

. FO 20
R
S.V F.V X 10
Y
R .
FO 30
O 60
F.V.
S.V.
PICTORIAL PRESENTATION IS GIVEN
DRAW FV AND SV OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD

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 FOR T.V.
ORTHOGRAPHIC PROJECTIONS 18

FV
40

X 10 Y
O
30 D 45

FO
R
F.V
.
O
10
50
PICTORIAL PRESENTATION IS GIVEN
DRAW FV AND TV OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
80

TV

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 19
FOR T.V.

ORTHOGRAPHIC PROJECTIONS

FV 40

X O 10 Y
100
10
25 FO
TV R
10 30 10 F.V
25 .
30 R O
20 D
PICTORIAL PRESENTATION IS GIVEN
DRAW FV AND TV OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD

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PICTORIAL PRESENTATION IS GIVEN ORTHOGRAPHIC PROJECTIONS 20
DRAW FV AND TV OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
30
FOR T.V.
FV
RECT.
SLOT

10 50
35

10
X Y

20 D

FO
R TV
F.V
.

60 D
30 D

TOP VIEW

O Downloaded from Ktunotes.in

 21

ORTHOGRAPHIC PROJECTIONS
10

25 15

25
40 10

25

. FO
R
S.V F.V 25
R .
FO O O
80 25

F.V. S.V.

PICTORIAL PRESENTATION IS GIVEN

DRAW FV AND SV OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
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 FOR T.V.
22
ORTHOGRAPHIC PROJECTIONS

450

30
FV

40

X Y

30 D
FO
R
F.V
.
40 TV

O
PICTORIAL PRESENTATION IS GIVEN
15
DRAW FV AND TV OF THIS OBJECT 40
BY FIRST ANGLE PROJECTION METHOD
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 23

ORTHOGRAPHIC PROJECTIONS

FO HEX PART
R
F.V 20
30
.
20
.
S.V
40
20
R
FO
O 50
20
15

O 30
100 60
PICTORIAL PRESENTATION IS GIVEN FRONT VIEW L.H.SIDE VIEW
DRAW FV ABD SV OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
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 FOR T.V.
ORTHOGRAPHIC PROJECTIONS 24

20 40

FRONT VIEW

F.V.
30

10
X Y
O

10

30
FO
R
F.V 10
.
30
O 80
PICTORIAL PRESENTATION IS GIVEN T.V. TOP VIEW
DRAW FV AND TV OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD
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 25

ORTHOGRAPHIC PROJECTIONS

10 10 15

25

25
X Y
O 50 10
V.
FV LSV S .
R FO
FO R
F.V
.

PICTORIAL PRESENTATION IS GIVEN

DRAW FV AND LSV OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD

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 PICTORIAL PRESENTATION IS GIVEN
26 DRAW FV AND SV OF THIS OBJECT
BY FIRST ANGLE PROJECTION METHOD

ORTHOGRAPHIC PROJECTIONS
FO
R
F.V
.
30 20 10 20

15
10

15
V.
S .
R O
FO 30
15

15
X Y
50
F.V. LEFT S.V.

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 PROJECTIONS OF A POINT IN FIRST QUADRANT.
POINT A ABOVE HP POINT A ABOVE HP POINT A IN HP
& INFRONT OF VP & IN VP & INFRONT OF VP
For Tv
For Tv

PICTORIAL PICTORIAL For Tv

PRESENTATION A PRESENTATION
a’ a’
For
A Fv
Y Y
Y For
Fv a a’
a
X a X X A For
Fv

ORTHOGRAPHIC PRESENTATIONS
OF ALL ABOVE CASES.

Fv above xy, Fv above xy, Fv on xy,

Tv below xy. Tv on xy. Tv below xy.
VP VP VP

a’ a’

X Y X Y X
a’ Y
a

a a

HP HP HP
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 END OF SESSION 1

NEXT SESSION
PROJECTION OF LINES

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