BME Engineering Drawing and CAD 3

Question 1

In CAD assembly modeling, a 'mate' constraint between two flat faces makes them:

Accepted Answer

Coplanar and facing each other

Answer

A mate constraint in CAD assembly aligns two faces coplanar and facing (opposing normal directions), simulating physical contact between parts.

Question 2

The title block of an engineering drawing typically does NOT include:

Accepted Answer

Customer's bank account

Answer

Title blocks contain part name, number, material, scale, drawing number, revision, company name, and drafter information — not financial data.

Question 3

In GD&T, flatness tolerance controls:

Accepted Answer

How flat a surface is (with no datum reference)

Answer

Flatness in GD&T controls all points on a surface lying within two parallel planes separated by the tolerance value; it requires no datum reference.

Question 4

A bill of materials (BOM) in a CAD assembly drawing lists:

Accepted Answer

All component parts with quantities, part numbers, and descriptions

Answer

A BOM is a structured list of all components in an assembly, including item numbers, quantities, part numbers, descriptions, and often material and supplier information.

Question 5

The 'feature control frame' in GD&T contains, in order:

Accepted Answer

Symbol, tolerance value, datum reference(s)

Answer

A GD&T feature control frame reads left to right: geometric characteristic symbol, tolerance value (with any modifiers), then primary/secondary/tertiary datum references.

BME - Bachelor of Mechanical Engineering Practice Test

BME - Bachelor of Mechanical Engineering Practice Test

BME Engineering Drawing and CAD 3