题目

BK10A6101 Technical Documentation and 3D Modeling - Monimuoto-opetus 2.9.2024-20.4.2025 Individual Exercise 4

多项选择题

Which of the following tolerances do not require a datum?

选项

A.A. Parallelism

B.B. Cylindricity

C.C. Flatness

D.D. Circularity

E.E. Position

F.F. Angularity

查看解析

标准答案

Please login to view

思路分析

To tackle this question, let's lay out which tolerances can stand alone without a datum reference and which typically rely on datums. Option A: Parallelism. This tolerance describes how parallel a feature is to a datum axis or plane and almost always uses a datum reference to define the direction relative to another feature. It requires at least one datum to establish the orientation constraint, so th......Login to view full explanation