Lesson no.21 Engineering Language in Hindi
Engineering drawing mein two types ka projection hota ous mein ek hota hai
1) Orthographic Projection
2) Isomatric Projection
1) Orthographic Projection:- ek vastu ka aakar sapasht karney hetu ous part ka alag alag view cover kiya jata hai ous methode ko Orthographic Projection kaha jata hai
Iss Methode ke two types hote hai
1) First Angle Projection
2) Theard Angle Projection
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First Angle Projection Fig. No.1 |
1) First angle Projection:- Iss method mein 45 degree ke Angle job ko rakh kar ous ka projection kiya jata hai ouse aap first Angele Projection kaha jata hai iss methode mein x,y line ke upar front view x,y line ke nichey top view aata hai
2) Thard Angle Projection :-iss method mein vastu vertical plain back side or horizontal plain down side rahti hai ouse aap Thard angele Projection kaha jata hai iss Method mein Theard angle ka vichar kiya jata hai iss mein x,y line ke upar top view x,y line ke below Front view aata hai
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Theard Angele Projection Fig. No.2 |
First Angle yeh method British standard hoti hai Thard angle Projection yeh American standard method hoti hai
Iss tarah ka method ka use karke drawing complete kiya jata hai
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