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Operations performed on a particular feature are indicated by using extension lines.

(a) True

(b) False

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The above asked question is from Terminology of Dimensioning topic in portion Lines, Lettering and Dimensioning of Engineering Drawing

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Correct answer is (b) False

Explanation: A note is used to indicate the operations done on a feature if there any. The note accompanied by a leader line which terminates in arrowhead on one side and a period on another side. For example, the threads on feature may have a note indicating whether it is a single start or double start.

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