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because in 2nd and 4th angle,both the view is going to overlap with each other,so we cant able to visualise the drawing properly,so we are not drawing in 2nd and 4th angle. kash answer

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When you do not use second and fourth angle projection in AutoCAD?

you do not use it when you multiply


Which countries are using second angle of projection?

any country using in second r fourth angle projection r else what r the advantages between first angle and third angle projetion


Why you not using 2nd and 4th angle projection?

Second and fourth angle projections are rarely used in technical drawing because they can lead to confusion and misinterpretation. These methods do not align with standard practices, which favor first and third angle projections for clarity and consistency across industries. By adhering to the more commonly accepted projections, engineers and designers ensure that their drawings are easily understood by others. Thus, using first and third angle projection simplifies communication and reduces the risk of errors in manufacturing or assembly.


What is the difference between first and third angle protection?

First angle projection and third angle projection are two methods of orthographic projection used in technical drawings. In first angle projection, the object is placed in the first quadrant, meaning the view is projected onto the plane behind the object, resulting in the top view appearing below the front view. In contrast, third angle projection places the object in the third quadrant, with the views projected onto the planes in front of the object, making the top view appear above the front view. These conventions are used to standardize how drawings are interpreted, with first angle commonly used in Europe and third angle in the United States.


What is the definition of angle of projection?

the angkle of projection is an angle and the projection


Why can not use second angle and four angle projection method in Engineering drawing?

Because in second angle both quaderent comes negative that's why we cant use second angle method


What are the 2 types of oblique drawing?

first angle projection and third angle projection.


What direction do you face in orthographic projections?

its always in front of d vertical plane..however there are 4 methods of projection 1st angle second angle 3rd angle and fourth angle..but 1st and 3rd are preffered as the views come distinct in second and forth the views are placed one over the other causing trouble in identifying d views


How do you interprate first and third angle projection drawings?

First angle projection is commonly used in Europe and involves positioning the object between the observer and the projection plane, resulting in the top view appearing below the front view. In contrast, third angle projection, prevalent in the United States, places the projection plane between the observer and the object, making the top view appear above the front view. To interpret these drawings, one should recognize the orientation of views and how they relate to the object's spatial arrangement, ensuring accurate visualization and understanding of dimensions and features. Always check the symbols indicating which projection method is used to avoid confusion.


What are the advantages of third angle projection over the first angle projection?

Neglecting term "opposite".. In third angle projection, what we see are what are we going to draw


Why second and third angle projections not used in orthographic projections?

because 2nd and 4th angle projection overlap each other


Why do you not use second angle projection and fourth angle projection?

Method of Projections tell us the positions of the views where they are projecting on the Planes. Consider 1st Angle of projection, All the views from a particular direction are projected on the opposite side, while in 3rd Angle of projection, All the views from a particular direction are projected on the same side. Take a case of 2nd Angle of Projections( means object lies in 2nd Quadrant) since the image is to be formed on the planes only that is why we have to keep right side view on the same side from viewing while top view on the opposite side from viewing. This contradicts view placement( i.e. once you are placing on same side and once on Opposite). Same is applicable in 4th Angle of Projection also.