IOCL Junior Operator Fitter MCQ || IOCL Junior Operator General Science Questions and Answers81. Which type of metal are single cut files best suited for?1 . Soft metals like brass and aluminum 2 . Cast iron 3 . Tool steel 4 . Hardened steel Answer and SolutionAnswer: "Soft metals like brass and aluminum " Single-cut files are best suited for filing soft metals like brass, aluminum, bronze, and copper. They have rows of teeth cut in one direction across the face. These files are designed to produce a smooth finish on the material. Discuss82. How many rows of teeth does a double cut file have?1 . One 2 . Two 3 . Three 4 . Four Answer and SolutionAnswer: "Two " A double-cut file has two rows of teeth that intersect each other. The first row is known as the overcut, and the second row is known as the upcut. These rows of teeth are positioned diagonally on the file face at opposite angles to each other. This design enables the file to remove material more quickly than a single-cut file. Discuss83. What is the angle of the overcut teeth in a double cut file?1 . 51 degrees 2 . 60 degrees 3 . 70 degrees 4 . 90 degrees Answer and SolutionAnswer: "70 degrees " In a double-cut file, the first row of teeth, known as the overcut, is cut at an angle of approximately 70 degrees. The second row of teeth, known as the upcut, is cut diagonally to the overcut, typically at an angle around 51 degrees. This arrangement of two rows of intersecting teeth enables the double-cut file to remove material more quickly compared to a single-cut file. Discuss84. What is the angle of the upcut teeth in a double cut file?1 . 51 degrees 2 . 70 degrees 3 . 60 degrees 4 . 90 degrees Answer and SolutionAnswer: "51 degrees " The angle of the upcut teeth in a double-cut file is approximately 51 degrees. The first row, known as the overcut, is cut at an angle of 70°. The second row, known as the upcut, is finer and lies at an angle of approximately 51°. The double cut file is used with heavier pressure than the single cut and removes material faster from the workpiece. Discuss85. The overcut and upcut teeth in a double cut file are cut:1 . Parallel to each other 2 . Perpendicular to each other 3 . At the same angle 4 . Diagonally to each other Answer and SolutionAnswer: "Diagonally to each other " In a double cut file, the overcut and upcut teeth are cut diagonally to each other. This creates the criss-cross pattern that is characteristic of double cut files, allowing for more aggressive material removal. Discuss86. Which type of file is best suited for filing wood, leather, and other soft materials?1 . Single cut 2 . Double cut 3 . Rasp cut 4 . Curved cut Answer and SolutionAnswer: "Rasp cut " Rasp cut files are best suited for filing wood, leather, and other soft materials. Rasp cut files have individual, sharp, pointed teeth that protrude from the file surface. The individual, pointed teeth efficiently remove material without generating excessive heat or damaging the workpiece, which is a common concern when using other types of files on softer materials. Discuss87. What is the shape of a rasp cut file?1 . Flat 2 . Half round 3 . Triangular 4 . Square Answer and SolutionAnswer: "Half round " The shape of a rasp-cut file is commonly half round. Rasp-cut files are designed with individual, sharp, pointed teeth and are effective for filing wood, leather, and other soft materials. These files are commonly available in a half-round shape. However, flat rasp files are also available Discuss88. Curved cut files are particularly effective on which types of materials?1 . Hardened steel 2 . Wood and leather 3 . Aluminum, tin, copper, and plastic 4 . Cast iron Answer and SolutionAnswer: "Aluminum, tin, copper, and plastic " Curved-cut files are particularly effective on soft materials like aluminum, tin, copper, and plastic. They have a deeper cutting action that is well-suited for these materials Discuss89. What is a characteristic feature of the teeth on a rasp cut file?1 . They are diagonal. 2 . They are small and closely spaced. 3 . They are arranged in a wave pattern. 4 . They are individual, sharp, and pointed. Answer and SolutionAnswer: "They are individual, sharp, and pointed. " Rasp-cut files are characterized by their individual, sharp, and pointed teeth that protrude from the file surface. This design is what makes them effective at aggressively removing material from softer substances like wood, plastic, and leather. Discuss90. Which shape are curved cut files available in?1 . Half-round 2 . Flat 3 . Triangular 4 . Any of the above Answer and SolutionAnswer: "Flat " Curved cut files are available only in a flat shape. This shape allows for effective material removal across a wide surface area, which is beneficial for the deeper cutting action of curved cut files. Discuss12345678910111213
