Why we need two angle of projections ( 1st angle and 3rd
angle)? Cant we standardize to one.

Answer Posted / subbu

Generally 1st angle projection is used in India and 3rd
angle projection is used in European countries. In 1st and 3rd angle projections there is no overlapping of principal planes while drawing side and top views. but in 2nd and 4th angle projections the principal planes are overlapped while drawing top and side views. It results confusion in drawing. For this reason 1st and 3rd angle projections are used commonly.

Is This Answer Correct ?    26 Yes 9 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Explain the importance of thermodynamics laws in mechanical engineering?

641


Define a process flow diagram?

631


what do you mean by resistivity survey of tubewell

1763


how can i access syllabus of different psu.plZ help me

1827


what is the difference between anf & centrifuge?

2350






Explain how the cylinder lubrication on main engine is done?

1498


What is meant by transmissivity?

622


What are materials used for manufacturing of gears ?

652


How i injecter setting qsk series cummins engine and i can using click type torqurench or dial gauge type

1698


hii sir. how will CAE/CFD courses useful to B.tech freshers? is this courses useful to getting job in automobile industry? plz give rply..

1548


Which reactor uses natural uranium as fuel ?

624


why is heat treatment of steel metal crucial?

674


what is the difference between set up of cast iron manufacturing industry and steel manufacturing industry?

1455


What is heavy water and what is its use in nuclear plants ?

638


please msg me tecnical question of hpcl

1679