IOCL Junior Operator Fitter MCQ || IOCL Junior Operator General Science Questions and Answers11. What is the angle of the point on a prick punch typically used for positioning dividers?1 . 90° 2 . 60° 3 . 30° 4 . Both 2 & 3 Answer and SolutionAnswer: "Both 2 & 3 " The angle of the point on a prick punch typically used for positioning dividers is 30° or 60. The 30° point punch is used for making light punch marks needed to position dividers. The 60° punch is used for marking witness marks also known as dot punch. Prick punches have a sharper angled tip compared to center punches, allowing for narrower and deeper indentations. Discuss12. What are the two major parts of a hammer?1 . Head and grip 2 . Face and pein 3 . Head and handle 4 . Cheek and eyehole Answer and SolutionAnswer: "Head and handle " The two major parts of a hammer are the head and the handle. The head is typically made of drop-forged carbon steel and is the working part of the hammer that delivers the impact. The handle, often made of wood, fiberglass, or steel, provides leverage and control when swinging the hammer Discuss13. What is the purpose of the wooden handle in a hammer?1 . To provide a comfortable grip 2 . To absorb shock 3 . To increase the striking force 4 . Both a and b Answer and SolutionAnswer: "Both a and b "The purpose of the wooden handle in a hammer is To provide a comfortable grip: The wooden handle is shaped to fit comfortably in the hand, allowing for a secure and controlled grip. To absorb shock: Wood has natural shock-absorbing properties, which help to reduce the vibration and impact felt by the user when striking a surface. This reduces fatigue and the risk of injury. Discuss14. Which part of the hammer is used for striking?1 . Pein 2 . Cheek 3 . Face 4 . Eyehole Answer and SolutionAnswer: "Face " The part of the hammer used for striking is the Face. The face is the flat, usually hardened, surface of the hammer head designed for delivering the main impact force. Discuss15. What is the purpose of the pein on a hammer?1 . To strike flat surfaces 2 . To shape and form metal 3 . To protect the handle 4 . To balance the hammer Answer and SolutionAnswer: "To shape and form metal " The purpose of the pein on a hammer is to shape and form metal. The pein is the shaped end of the hammerhead, opposite the flat striking face. Ball pein hammers are used for tasks like rounding off edges of metal pins and fasteners, such as rivets. The ball shape helps in shaping and expanding meta Discuss16. Which of the following is NOT a type of pein?1 . Ball pein 2 . Cross pein 3 . Straight pein 4 . Round pein Answer and SolutionAnswer: "Round pein "Round pein is NOT a type of pein. Ball pein hammers have a hemispherical peen used for rounding edges and shaping metal. Cross pein hammers feature a wedge-shaped pein oriented perpendicular to the handle. Straight pein hammers have a wedge-shaped pein that is parallel to the handle. Discuss17. What is the function of the cheek of a hammer?1 . To provide a striking surface 2 . To house the handle 3 . To indicate the weight of the hammer 4 . To shape metal Answer and SolutionAnswer: "To indicate the weight of the hammer " The function of the cheek of a hammer is to indicate the weight of the hammer. The cheek is the side part of the hammerhead, and it’s usually where the hammer’s weight is stamped. So, it tells you how heavy the hammer is. Discuss18. What is the eyehole of a hammer used for?1 . Attaching the handle 2 . Striking small objects 3 . Balancing the hammer 4 . Protecting the user’s hand Answer and SolutionAnswer: "Attaching the handle " The eyehole of a hammer is used for attaching the handle. It is the hole in the hammer head where the handle is inserted and secured The eye is more common on hammers with wooden handles. Hammers used for wood have an eye, while hammers for rock and metal may not. Discuss19. What is the primary function of V-blocks?1 . To hold workpieces for welding 2 . To mark and set up work on machines 3 . To measure angles accurately 4 . To cut metal Answer and SolutionAnswer: "To mark and set up work on machines " The primary function of V-blocks is to mark and set up work on machines. V-blocks are tools that hold round or cylindrical objects steady so you can accurately mark, inspect, or work on them with machines like drills or milling machines. The “V” shape in the block helps center the round object Discuss20. What is the included angle of the V in a standard V-block?1 . 45° 2 . 120° 3 . 60° 4 . 90° Answer and SolutionAnswer: "90° " The included angle of the V in a standard V-block is 90 degrees. The 90-degree angle ensures that round objects, like shafts or cylinders, are accurately centered within the V-block. This is essential for tasks like precision measurements, drilling, and milling. Discuss12345678910111213
