This is a solid shape that fits inside the mold and forms a hole in a cooled cast metal or molten plastic object:

A. Core

B. Cavity

C. Prototype

D. Hole mold

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. This line pattern is composed of three dashes, one long dash on each end with a short dash in the middle:
  2. A fillet is a rounded surface on the ________ corner of a part.
  3. Dimensions are used on the elevation plan to describe ________.
  4. The standard number of threads per inch for various diameters is the:
  5. The MASSPROP shortcut will provide the following information.
  6. When positioning this feature of perspective projection, the centerline of the cone of visual rays should…
  7. These drawings are given to contractors to perform work or manufacture individual parts:
  8. This is a conical-shaped recess around a hole, often used to receive a tapered screw head:
  9. CAD programs which incorporate parametric modeling utilize a system in which the dimensions control…
  10. Traditional drafters need to be able to create several different line widths because ________.
  11. The ________ dimension tool will place the length of an angled line.
  12. EDM is the acronym for:
  13. If a designer is developing a plan for a project in which the entire part is made out of ¾ thick…
  14. How can the drafter prevent Auto-CAD from placing or stacking another center mark on a circle when adding…
  15. The organized and orderly approach to solving problems is known as the:
  16. When creating a block the drafter needs to pay particular attention to selecting a base point because…
  17. In multi-view drawing it is common practice to include three views, the front, the top and the right…
  18. If a plane is parallel to the plane of projection, it appears:
  19. In order to set drawing limits for a C size architectural drawing the drafter should set the limits…
  20. These are lines drawn on a map to locate, in the plan view, points of equal ground elevation:
  21. The offset distance for the width (front to back) distance of the auxiliary view is the same distance…
  22. This means that a feature of a finished product contains the maximum amount of material permitted by…
  23. When using the descriptive geometry method to create an auxiliary view the drafter should __________.
  24. In some circumstances an entire drawing can be inserted into a different drawing as a block. When this…
  25. Before starting an isometric drawing in Auto-CAD the drafter needs to ________.
  26. Students can complete an associate's degree in drafting which normally takes about ________ years to…
  27. Drawings created with commercial software are typically saved as:
  28. The architectural drafter usually begins a set of working drawings by creating the ________ plan first.
  29. The most common geometric form used in gears today is this:
  30. In this type of dimensioning, allowance must be made for bends: