Final answer:
Dimensioning and tolerancing in engineering ensure interchangeability and proper assembly of parts.
Step-by-step explanation:
In engineering, dimensioning and tolerancing are important concepts that ensure the proper fit and functionality of mechanical parts and products. Dimensioning refers to the process of specifying the size and shape of a part, while tolerancing determines the acceptable range of variation in the dimensions.
Dimensioning and tolerancing shall be consistent and precise so there is interchangeability and proper assembly. This means that all dimensions and tolerances on a drawing should be clear, accurate, and specified in a consistent manner to allow for parts to be manufactured and assembled correctly.
For example, if you were designing a car engine, dimensioning and tolerancing would ensure that all the components fit together properly, such as the pistons fitting into the cylinders or the gears meshing correctly. Without proper dimensioning and tolerancing, the parts may not fit together, resulting in poor performance or even failure of the engine.