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Both third angle and first angle projection display the standard three orthographic
views of a part or assembly on a drawing.. The key difference between third angle and first angle is the layout of the part on the sheet.
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∙ 11y ago
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How do you factorise 9 minus y squared?
1st of all, if you mean 9-y2 its simply a difference between two squares formula (3-y) (3+y)
7 11 19 35 what is the next number?
Difference between the terms: 1st & 2nd = 4 2nd & 3rd = 8 3rd & 4th = 16 4th & 5th = ?? The pattern of the differences can be seen as to be multiplying by two as the series progresses. It can be predicted that the next difference will be 16*2 = 32. Therefore, the next number will be 35 + 32 = 67.
Why is 2 to the first power 1?
Any number to the 1st power is the same number, unchanged. Two to the 1st power is 2.
What is 7 to the negative 1st power?
7-1 equals 0.14285714285
What is the the 1st 3 terms of 25-3n?
They are: 22, 19 and 16
What are the 2 types of oblique drawing?
first angle projection and third angle projection.
What is different between 1st angle and 3rd angle?
Basically its just where you position the views of the main object, in first angle projection, if you view the object from the left, the view is drawn to the right of the object, in third angle projection, its drawn on the viewing side.
What is auto-graphic projection in tachnical drawing?
In first angle auto graphic projection the planed, view is drawn exactly below the front elevation. What is viewed from the left is drawn from the right side of the front, it is drawn in the 1st angle and 3rd angle.
How do you interpret first and third angle projection?
The front elevation is in the centre in both projections. In 1st angle projection the end elevation is on the opposite side of the front elevation and the plan view is below the front elevation. In 3rd angle projection the plan view is above the front elevation and the end elevations are on the same side as viewed
How do you draw isometric projection?
We convert inches to mm sizes. 1 inch = 25.4 mm
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.
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
Why can not we use second angle projection method in Engineering drawing?
In 1st angle projection the front view will be in the top of the xy plane and the top view will be in the bottom of the xy plane .In 3rd angle projection the top view will be in the top of the xy plane and front view will be in bottom of the xy plane. dis will give a clear view.i hope u know dis... but in 2 angle projection both the views(front and top) will be in the top of the xy plane and in 4th angle projection both the views (front and top) will be in the bottom of the xy plane... since both the views will be in one side of the xy plane, its not possible to draw... both views will merge... to get more clear view, refer any basic engineering drawing book.......
What is the difference between law of return to variable proportion and law or return to scale?
There is a big difference between both the laws.The basi difference between them is that i dont know 1st but i know the 2nd one
What is the difference between 1989 Chevy 350 and 1985 Chevy 350?
In 89, Chevy introduced the 1st generation vortec head. It has a different angle, thus using a different intake manifold, and self adjusting rocker arm.
What is the difference from the iPod third generation and the first generation iPod?
The difference between the 1st and 3rd generation iPod is slightly different. the cases will still work, the difference between the two generations is that the 3rd generation is slightly slimmer than the 1st generation.
What do you call the difference between the 1st and 3rd quartiles?
The inter-quartile range.
