Oet Trainer Interview Questions and Answers for Freshers

Welding is a fabrication process that joins materials, usually metals, by melting them together.

• Welding involves using heat to melt and fuse materials together

• Common types of welding include MIG, TIG, and stick welding

• Welding is used in various industries such as construction, automotive, and aerospace

• Examples of welded products include bridges, pipelines, and metal sculptures

Chuck in a lathe machine is a device used to hold and rotate the workpiece during machining.

• Chuck is typically made of metal and has jaws that can be adjusted to securely grip the workpiece.

• There are different types of chucks such as three-jaw chuck, four-jaw chuck, and collet chuck.

• Chuck allows for precise positioning and rotation of the workpiece for accurate machining.

• Chuck can be manually operated or powered by the lathe machine.

Hook's law states that the force needed to extend or compress a spring by a distance is directly proportional to that distance.

• Force needed to extend or compress a spring is directly proportional to the distance

• Mathematically expressed as F = kx, where F is the force, k is the spring constant, and x is the distance

• The law applies to elastic materials like springs and rubber bands