Innovalance Learning Systems Interview Questions and Answers

TIG welding uses a non-consumable tungsten electrode and inert gas, while MIG welding uses a consumable wire electrode and inert gas.

• TIG welding is more precise and produces higher quality welds compared to MIG welding.

• MIG welding is faster and more suitable for thicker materials than TIG welding.

• TIG welding requires more skill and control from the operator than MIG welding.

• TIG welding is commonly used for welding thin materials like stainless steel, aluminum, and copper, whi...read more

To maintain PM work, one must prioritize tasks, communicate effectively, and adapt to changes.

• Prioritize tasks based on importance and deadlines

• Communicate effectively with team members and stakeholders

• Adapt to changes in project scope, timeline, or requirements

• Regularly review and update project documentation

• Monitor progress and identify potential risks or issues

• Delegate tasks to team members and provide necessary support

• Continuously improve project management skills through...read more

The appropriate gas flow ratio for welding depends on the type of welding process and materials being used.

• Gas flow ratio is typically determined by the welding process being used (e.g. MIG, TIG, stick)

• Consult the manufacturer's guidelines for recommended gas flow ratios

• Adjust gas flow based on material thickness and welding position

• Common gas flow ratios range from 10-30 cubic feet per hour (CFH) for MIG welding

• For TIG welding, typical gas flow rates range from 10-40 CFH

Chemical used for penetration is typically a surfactant or wetting agent.

• Surfactants reduce surface tension and allow liquids to spread more easily.

• Examples include detergents, soaps, and emulsifiers.

• Wetting agents help liquids penetrate surfaces more effectively.

Weld bead offset can be caused by various factors such as incorrect welding parameters, poor fit-up, or improper torch angle.

• Incorrect welding parameters such as voltage, current, or travel speed

• Poor fit-up of the parts being welded

• Improper torch angle leading to uneven deposition of weld metal

• Inadequate cleaning of the base metal before welding

• Lack of operator skill or experience