UST Interview Questions and Answers

Operations like turning, facing, drilling, boring, knurling, etc. can be done on a lathe machine.

• Turning: Rotating the workpiece to remove material and create a cylindrical shape.

• Facing: Cutting a flat surface perpendicular to the axis of rotation.

• Drilling: Making a hole in the workpiece.

• Boring: Enlarging an existing hole.

• Knurling: Creating a pattern of small ridges on the surface of the workpiece.

• Parting: Cutting off a section of the workpiece to create a separate piece.

• Thre...read more

The accuracy of vernier and micrometer depends on their resolution and the skill of the user.

• The accuracy of vernier calipers is typically around 0.02 mm or 0.001 inches.

• Micrometers can have an accuracy of 0.001 mm or 0.0001 inches.

• The accuracy also depends on the skill of the user in reading and using the instruments.

• Regular calibration and maintenance can ensure consistent accuracy.

• The accuracy can also vary depending on the quality and brand of the instrument.

Steel is an alloy of iron and carbon, while stainless steel contains iron, carbon, and at least 10.5% chromium.

• Steel is more susceptible to rust and corrosion than stainless steel.

• Stainless steel is more expensive than regular steel.

• Stainless steel is commonly used in kitchen appliances, medical equipment, and construction.

• Steel is commonly used in construction, automotive, and manufacturing industries.

Thermodynamics is the study of energy and its transformations in relation to heat and work.

• Thermodynamics deals with the transfer of energy between systems and their surroundings.

• It focuses on the principles of heat, temperature, and energy conversion.

• Laws of thermodynamics govern the behavior of energy in various processes.

• Applications include power generation, refrigeration, and combustion engines.

• Example: Understanding how a car engine converts fuel into mechanical work.

Rolling process is a metal forming process in which a metal stock is passed through a pair of rolls to reduce its thickness and increase its length.

• Rolling process is used to produce sheets, plates, bars, and other metal products.

• The rolls used in the process can be either flat or grooved.

• The process can be hot rolling or cold rolling depending on the temperature of the metal being rolled.

• Hot rolling is used for metals that are difficult to deform at room temperature, while c...read more