Question

question 16
the method of dimensioning in which an overall dimension is located furthest from the view and broken - chain dimensions show feature placements is the ___ method.
a chain dimension
b datum dimensioning
c extension and dimension line
d ordinate dimensioning
question 17

Explanation:

• Chain dimension: In chain dimensioning, dimensions are placed end - to - end like links in a chain. There is no overall dimension located furthest from the view in the way described in the question.
• Datum dimensioning: Datum dimensioning uses a datum (a reference point, line, or plane). An overall dimension can be located furthest from the view, and broken - chain dimensions (dimensions relative to the datum) show feature placements.
• Extension and dimension line: Extension lines and dimension lines are just elements of dimensioning (extension lines show the extent of the dimension, dimension lines show the measurement). This is not a method of dimensioning as described.
• Ordinate dimensioning: Ordinate dimensioning is a system where dimensions are measured from a common datum (usually in a rectangular coordinate system). But it does not match the description of an overall dimension located furthest from the view with broken - chain dimensions for feature placements as well as datum dimensioning does.

Answer:

B. datum dimensioning