A Text Book on Engineering Graphics - Central Board of Secondary ...
A Text Book on Engineering Graphics - Central Board of Secondary ...
A Text Book on Engineering Graphics - Central Board of Secondary ...
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ISOMETRIC PROJECTION<br />
B<br />
C<br />
30<br />
(i)<br />
5<br />
b<br />
6<br />
30º<br />
30º<br />
ENGINEERING GRAPHICS<br />
C<br />
b<br />
B<br />
O<br />
4 3<br />
1<br />
5 4<br />
1 a 2<br />
HELPING FIGURE<br />
(ii)<br />
a<br />
2<br />
A<br />
3<br />
A<br />
B<br />
OC = ISO 70mm<br />
Fig 1.4<br />
HORIZONTAL LINE<br />
30º<br />
VERTICAL LINE<br />
C<br />
O<br />
(iii)<br />
30º<br />
HORIZONTAL LINE<br />
O<br />
F<br />
ISOMETRIC PROJECTION<br />
(iv) (v)<br />
B<br />
b<br />
6<br />
O<br />
(v)<br />
30º<br />
5<br />
1<br />
30º<br />
a<br />
4<br />
2<br />
3<br />
A<br />
F<br />
30<br />
30<br />
30º<br />
30º<br />
30º<br />
70<br />
O<br />
ISOMETRIC PROJECTION<br />
(vi)<br />
30º<br />
A<br />
F<br />
F<br />
F<br />
70<br />
5
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