UNO Minda Trainee Mechanical Engineer Interview Questions and Answers

Quality control is a process used to ensure that products or services meet specified requirements and standards.

• Quality control involves monitoring and testing products or services to ensure they meet predetermined standards

• It helps identify defects or errors in the production process

• Quality control aims to prevent defects and improve the overall quality of products or services

• Examples include inspecting products for d...read more

Inspection is a thorough examination or assessment of a building or equipment to ensure safety and compliance with regulations.

• Inspections involve checking for potential hazards, defects, or violations of codes and standards.

• Inspectors may use tools such as cameras, measuring devices, or testing equipment during the inspection.

• The purpose of an inspection is to identify and address any issues that could pose a risk to ...read more

Manufacturing is the process of producing goods through the use of labor, machines, tools, and chemical or biological processing.

• Manufacturing involves transforming raw materials into finished products

• It includes various processes such as casting, molding, cutting, welding, and assembling

• Manufacturing can be done in industries like automotive, aerospace, electronics, and pharmaceuticals

Types of manufacturing include additive manufacturing, subtractive manufacturing, and formative manufacturing.

• Additive manufacturing: building up materials layer by layer, such as 3D printing

• Subtractive manufacturing: removing material from a solid block to create the final product, such as CNC machining

• Formative manufacturing: shaping materials into the desired form, such as forging or casting

The 5 process types are continuous, batch, job shop, project, and line.

• Continuous process involves uninterrupted flow of production, like in oil refineries.

• Batch process produces a group of products at one time, like in pharmaceuticals.

• Job shop process is customized and flexible, like in machine shops.

• Project process is unique and temporary, like in construction projects.

• Line process is repetitive and standardized, lik

Structured processes can be production processes producing products and services. The process of an assembly line is a good example. Not all production processes are structured, but there is a tendency to make them as structured as possible.

There are three main types of maintenance: preventive, predictive, and corrective.

• Preventive maintenance involves regularly scheduled inspections and maintenance to prevent breakdowns.

• Predictive maintenance uses data and analytics to predict when equipment will fail and perform maintenance before it happens.

• Corrective maintenance is done after a breakdown occurs to restore equipment to working condition.

• Examples: Chang...read more

Preventive maintenance involves regularly scheduled inspections, repairs, and replacements to prevent equipment breakdowns.

• Regularly inspecting equipment for signs of wear and tear

• Replacing worn out parts before they fail

• Cleaning and lubricating machinery to prevent corrosion and friction

• Creating a maintenance schedule based on manufacturer recommendations

• Using predictive maintenance techniques such as vibration analys...read more

There are various types of bearings used in mechanical systems, each with specific uses such as reducing friction and supporting loads.

• Ball bearings: used for low friction applications like wheels and conveyor belts

• Roller bearings: used for heavy radial loads like in car transmissions

• Thrust bearings: used for axial loads like in propellers

• Plain bearings: used for high load capacity and shock resistance like in cranksha

A compressor works by increasing the pressure of a gas to compress it into a smaller volume.

• Compressors use a motor to drive a piston or rotor that compresses the gas.

• The compressed gas is then stored in a tank or released for use in various applications.

• Common types of compressors include reciprocating, rotary screw, and centrifugal compressors.