Which of the following facts is true regarding the V/A ratios of the riser and the casting in a sand casting mold?

Which is geometric modeling schemes used in CAD systems?

Which machine is appropriate for cutting large diameter holes, holes with very close tolerance, and to do shaped holes?

Which product is produced by extrusion?

Which is alternative names for thermal spraying?

A jig differs from a fixture in that it ______ while a fixture does not.

Which way can be used in product designing so that they can be less environmentally damaging and less costly to produce?

In CAD, polar coordinates are adopted for drawing which of the following?

The process of verifying a product's speed, consumption and reliability is called

Which is major components of a CNC machine?

Which casting metal is most important economically?