IOCL Junior Operator Fitter MCQ || IOCL Junior Operator General Science Questions and Answers121. Knife edge files are specifically designed for filing:1 . Internal curves 2 . Large, flat surfaces 3 . Circular holes 4 . Narrow grooves and angles above 10 degrees Answer and SolutionAnswer: "Narrow grooves and angles above 10 degrees " Knife edge files are specifically designed for filing narrow grooves and angles above 10 degrees. Knife edge files have a cross-section shaped like a sharp triangle, which allows them to effectively reach and file narrow grooves and acute angles. The tapering to a knife point enables precise work in tight spaces. Discuss122. Approximately how much of the length of a knife edge file is tapered?1 . One-fourth 2 . One-third 3 . One-half 4 . Two-thirds Answer and SolutionAnswer: "One-third " Knife edge files have a taper for one-third of their length. These files have a sharp triangular cross-section and are used for filing narrow grooves and angles above 10°. They are available both single and double cuts. Discuss123. What is the cross-sectional shape of a triangular file?1 . Square 2 . Round 3 . Triangular 4 . Half-round Answer and SolutionAnswer: "Triangular " A triangular file has a triangular cross-section. Triangular files are used for filing corners and angles which are more than 60°. Discuss124. Triangular files are best suited for filing:1 . Corners and angles greater than 60 degrees 2 . Flat surfaces 3 . Circular holes 4 . Internal curved surfaces Answer and SolutionAnswer: "Corners and angles greater than 60 degrees " Triangular files are suited for filing corners and angles, especially those greater than 60 degrees. This unique shape allows them to access and work effectively in tight corners and angles that other file shapes cannot easily reach. Discuss12345678910111213
