4EST Interview Questions and Answers

Mechanical and metallurgical failures in furnace and their remedies.

• Mechanical failures can be caused by wear and tear, improper maintenance, or design flaws.

• Metallurgical failures can be caused by improper heat treatment, contamination, or material defects.

• Remedies for mechanical failures include regular maintenance, proper design, and replacement of worn parts.

• Remedies for metallurgical failures include proper heat treatment, material testing, and quality control measures.

The cycle for NPD parts is decided based on material type, part geometry, required properties, and customer specifications.

• Consider the material type and its heat treatment response

• Analyze the part geometry and its heat treatment requirements

• Determine the required properties such as hardness, toughness, and wear resistance

• Take into account the customer specifications and any regulatory requirements

• Perform trials and testing to optimize the cycle

• Document the cycle and ensure r...read more

Mechanical engineering is a branch of engineering that focuses on designing, analyzing, and manufacturing mechanical systems.

• Involves designing and analyzing mechanical systems such as engines, machines, and tools

• Includes studying materials, thermodynamics, fluid mechanics, and dynamics

• Incorporates principles of physics and mathematics to solve engineering problems

• Examples include designing car engines, HVAC systems, and manufacturing equipment

I have extensive knowledge in operating and maintaining various machines, including industrial equipment and computer systems.

• Experience with troubleshooting and repairing mechanical equipment

• Proficiency in programming and operating computer-controlled machinery

• Familiarity with maintenance procedures for industrial machines

• Knowledge of safety protocols for operating heavy machinery

OEE is calculated by multiplying Availability, Performance, and Quality.

• Calculate Availability by dividing Operating Time by Planned Production Time.

• Calculate Performance by dividing Actual Production by Maximum Possible Production.

• Calculate Quality by dividing Good Parts Produced by Total Parts Produced.

• Multiply Availability, Performance, and Quality to get Overall Equipment Effectiveness (OEE).

Geometric Dimensioning and Tolerancing (GD&T) is a system for defining and communicating engineering tolerances.

• GD&T is a symbolic language used on engineering drawings to specify the allowable variations in form, size, and orientation of features.

• It uses symbols, such as squares, circles, and triangles, to define the tolerance zones for different features.

• GD&T helps ensure that parts are manufactured to the correct dimensions and fit together properly in assemblies.

• It is com...read more