Question

19. Identify the “a' in the given picture of Fig. 4
R15
Fig. 4​

Answer 1

Answer:

where is the given picture?

Answer 2

Answer:

It is the centre line.

Explanation:

• The centre line is typically depicted as a chain that is thin and long-dashed with dots.
• It also depicts the axis of cylindrical objects, lines of symmetry, trajectories, pitch circles of gears, and pitch circles of holes (narrow).
• The study of specifying and allowing for the locations and shapes of features on objects is known as geometrics.
• The process of measuring an object's area or volume is known as dimensioning.
• One of the most often used tools in engineering drawings is the centerline.
• Their primary use is to depict in a drawing the numerous round and cylindrical characteristics present in mechanical parts.
• Bolt holes, pins, discs, and other common instances of such features contain them.
• When sizing circular features, centerlines are employed as a reference.

The centre line is depicted in the diagram.

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