What is the cross section of a flat file?

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ALP CBT 2 Fitter Previous Paper: Held on 21 Jan 2019 Shift 3
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  1. Rectangular
  2. Square
  3. Circular
  4. Triangular

Answer (Detailed Solution Below)

Option 1 : Rectangular
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Explanation:

  • Files are manufactured in different types and grades to meet the various needs. 
  • Common files of different shapes: Flat file, Hand file, Square file, Round file, Half-round file, Triangular file, and Knife-edge file.
  • Flat file: These files are used for general purpose work. They are useful for filing and finishing external and internal surfaces.
  • Hand file: They are useful for filing surfaces which are at right angles to surfaces already finished.
  • Square File: It is used for filing square holes, internal square corners, rectangular openings, keyways, and splines.
  • Round file: It is used for enlarging the circular holes and filing profiles with fillets.
  • Half-round file: A half-round file is in the shape of a segment of a circle. It is used for filing internal curved surfaces.

  • Knife-edge file: It is used for filing narrow grooves and angles above 10°.
  • Triangular file: It is used for filing corners and angles which are more than 60°.

 filecross

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