DPS Sem01 REVIEW

Front

What is an Orthographic Projection?

Back

A method of representing three-dimensional objects in two dimensions, showing different views (top, front, side) without perspective.

Front

What is Isometric Projection?

Back

A method of visually representing three-dimensional objects in two dimensions, where the three axes are equally foreshortened and the angle between any two axes is 120 degrees.

Front

How do you calculate the number of line segments needed for a scaled drawing?

Back

Multiply the actual length by the scale factor. For example, at a scale of 1:1", a 3-foot line (36 inches) would require 36 line segments.

Front

What is the depth of a model in isometric projection?

Back

The depth is the measurement from the front to the back of the object, represented in the isometric view.

Front

What is the significance of scale in technical drawings?

Back

Scale allows for accurate representation of the size of an object in a drawing, ensuring that measurements can be interpreted correctly.

Front

What are the three main views in Orthographic Projection?

Back

Top view, front view, and side view.

Front

What is the difference between Isometric and Orthographic projections?

Back

Isometric projection shows a 3D view with equal foreshortening, while Orthographic projection shows flat views without depth.

Front

How do you determine the correct projection from an isometric image?

Back

Analyze the angles and dimensions in the isometric view to match them with the corresponding orthographic views.

Front

What is the purpose of using projections in technical drawings?

Back

To provide clear and accurate representations of objects for manufacturing, construction, and design purposes.

Front

What does a scale of 1:1 mean in technical drawings?

Back

It means that the drawing is at full size; 1 unit on the drawing equals 1 unit in reality.