TransUnion Interview Questions and Answers

Fade system is a method used in injection molding to gradually reduce the pressure and speed of the injection process. Core and cavity are the two halves of a mold used in injection molding. To plate mold is a type of mold where a metal plate is used to create the mold cavity. Pitch diameter of a bolt is the diameter of an imaginary cylinder that passes through the threads of the bolt.

• Fade system is used in injection molding to gradually reduce pressure and speed during the i...read more

Jigs are used to guide cutting tools and fixtures hold the workpiece in place during machining operations.

• Jigs are used to guide cutting tools, while fixtures hold the workpiece in place

• Jigs are used for drilling, reaming, and tapping operations, while fixtures are used for milling, grinding, and turning operations

• Jigs are more complex and expensive than fixtures

• Jigs are often used for mass production, while fixtures are used for one-off or small batch production

A single cavity mould is a type of mould that only produces one part per cycle.

• Single cavity moulds are used for low volume production.

• They are simpler and cheaper compared to multi-cavity moulds.

• Examples include prototype moulds and custom moulds for unique parts.

The nominal diameter of a bolt refers to the size of the bolt shaft, excluding the threads.

• Nominal diameter is the diameter of the bolt shaft, not including the threads

• It is typically measured in millimeters or inches

• For example, a bolt with a nominal diameter of 10mm has a shaft diameter of 10mm

A stress-strain curve is a graphical representation of the relationship between stress (force per unit area) and strain (deformation) in a material.

• It shows how a material deforms under increasing load.

• The curve typically consists of distinct regions such as elastic, plastic, and fracture.

• The slope of the curve in the elastic region represents the material's stiffness or Young's modulus.

• The ultimate tensile strength is the maximum stress a material can withstand before failur...read more

Waste in production department refers to any activity that does not add value to the final product.

• Overproduction - producing more than needed

• Waiting - idle time between production steps

• Defects - errors that require rework

• Transportation - unnecessary movement of materials

• Inventory - excess raw materials or finished goods

• Motion - unnecessary movement of workers

• Overprocessing - using more resources than necessary

Key areas in production include planning, scheduling, quality control, maintenance, and safety.

• Planning: creating production schedules, setting goals, and allocating resources

• Scheduling: coordinating tasks, managing timelines, and optimizing efficiency

• Quality control: ensuring products meet standards, conducting inspections, and implementing corrective actions

• Maintenance: upkeep of equipment, preventing breakdowns, and minimizing downtime

• Safety: promoting a safe work environm...read more