Pattern terminology in sand moulding: When a pattern is constructed in three parts for complex geometry, the statement ‘‘the bottom part of the pattern assembly is known as a cope’’ is — select the correct evaluation using standard cope–drag–cheek nomenclature.

Difficulty: Easy

Correct Answer: False

Explanation:


Introduction / Context:

In sand casting, the moulding box (flask) is typically split into an upper half and a lower half; for more complex castings, a third middle section can be added. Understanding the standard names avoids assembly errors and miscommunication on the foundry floor.


Given Data / Assumptions:

  • Three-part pattern/mould arrangement.
  • Conventional terminology is used throughout foundry practice.
  • No inversion or special jigs altering naming conventions.


Concept / Approach:

The cope is the upper portion of the mould or pattern assembly; the drag is the lower portion; when present, the cheek is the middle section inserted between cope and drag. Therefore, calling the bottom part a ‘‘cope’’ is incorrect; the correct name is drag.


Step-by-Step Solution:

1) Recall standard names: cope (top), drag (bottom), cheek (middle).2) Map statement: ‘‘bottom part is cope’’ contradicts the definitions.3) Conclude the statement is false.


Verification / Alternative check:

Foundry texts and shop practice consistently use cope/drag/cheek in this manner; gating and risering diagrams likewise label the halves accordingly.


Why Other Options Are Wrong:

  • True / conditional variants: conflict with universal nomenclature unless a hypothetical inverted labeling system is adopted (not standard).


Common Pitfalls:

  • Confusing flask orientation during handling with the naming convention, which remains fixed.


Final Answer:

False

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