Contents

## What is first angle projection?

First-angle projection: In this type of projection, the object is imagined to be in the first quadrant. Because the observer normally looks from the right side of the quadrant to obtain the front view, the objects will come in between the observer and the plane of projection.

## What is angle of projection?

(i) Angle of projection – It is the angle with the surface with which the projectile is projected. The maximum range angle of the projectile should be 45.

## How do you read 1st and 3rd angle drawings?

The difference between first and third angle projection is in the position of the plan, front and side views. In third angle, what you see from the right would be drawn on the right. In first angle, the view from the right would be projected through and drawn on the left.

## What are the different types of projection?

6.4. 2 Types of Projection

• 6.4. 2.1 Perspective projection. …
• 6.4. 2.2 Orthographic projection. …
• 6.4.2.3 Fisheye projection. This is a spherical projection. …
• 6.4. 2.4 Ultra wide angle projection. …
• 6.4. 2.5 Omnimax projection. …
• 6.4. 2.6 Panoramic projection. …
• 6.4. 2.7 Cylindrical projection. …
• 6.4. 2.8 Spherical projection.
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