60+ TDK India Private Limited Interview Questions and Answers

IATF stands for International Automotive Task Force and its current revised name is IATF 16949:2016.

• IATF stands for International Automotive Task Force

• Its current revised name is IATF 16949:2016

Rework of produced parts affects the factors of Overall Equipment Efficiency (OEE).

• Rework increases the time required to produce a part, reducing the availability factor of OEE.

• Rework increases the number of defects, reducing the quality factor of OEE.

• Rework increases the amount of scrap or waste, reducing the performance factor of OEE.

• Rework can lead to increased downtime for equipment setup and adjustments, reducing the availability factor of OEE.

• Rework can result in additi...read more

A histogram is used to represent the distribution of numerical data. Frequency is the number of occurrences and interval is the range of values.

• Histograms are useful for visualizing data and identifying patterns.

• Frequency refers to the number of times a value appears in the data set.

• Interval refers to the range of values that are grouped together in the histogram.

• Histograms are commonly used in statistics, finance, and quality control.

• For example, a histogram can be used to s...read more

Companies are going for TPM to improve productivity, reduce downtime, and increase efficiency.

• TPM helps in identifying and eliminating equipment failures before they occur

• It ensures that equipment is maintained properly and in a timely manner

• TPM also helps in reducing the need for emergency repairs and downtime

• It improves overall equipment effectiveness and reduces costs

• Companies that have implemented TPM have seen significant improvements in productivity and efficiency

• Exampl...read more

Quality tools are techniques used to ensure quality in a product or service.

• Quality control charts

• Pareto charts

• Fishbone diagrams

• Histograms

• Control charts

• Scatter diagrams

• Statistical process control

Main power handling and performance analysis are important for an Assistant Engineer Production.

• Main power handling involves understanding the electrical power requirements of the production process and ensuring that the equipment can handle it.

• Performance analysis involves monitoring the production process to identify areas for improvement and optimizing efficiency.

• Why analysis involves identifying the root cause of any issues that arise and implementing solutions to prevent...read more

A capacitor is an electronic component that stores electrical energy in an electric field. It is used in various electronic circuits.

• Capacitors are used to filter out noise and stabilize voltage in power supplies.

• They are used in timing circuits, oscillators, and filters.

• Capacitors are also used in audio equipment to filter out unwanted frequencies.

• They can be found in electronic devices such as TVs, computers, and smartphones.

• Capacitors come in different types such as cerami...read more

High frequency in transformers is used in applications such as power distribution, induction heating, and medical equipment.

• High frequency transformers are used in power distribution systems to step up or step down voltage levels efficiently.

• They are also used in induction heating applications for processes like welding, melting, and heat treatment.

• In medical equipment, high frequency transformers are used in devices like MRI machines and X-ray machines for power conversion a...read more

I have extensive knowledge and experience with transducers, switching circuits, RTD, and SCADA PLC automation from my previous job roles.

• Transducers are devices that convert one form of energy into another, such as a pressure transducer converting pressure into an electrical signal.

• Switching circuits are used to control the flow of current in electronic devices, such as relays or MOSFETs.

• RTD stands for Resistance Temperature Detector, which measures temperature by changes in ...read more

The check points given by the customer in the power bank include battery capacity, charging time, safety features, and compatibility.

• Battery capacity: Customers may specify the desired capacity of the power bank, such as 10,000mAh or 20,000mAh.

• Charging time: Customers may expect the power bank to charge their devices within a specific time frame, like 2 hours or less.

• Safety features: Customers may require the power bank to have overcharge protection, short circuit protection,...read more

SPC stands for Statistical Process Control. Cp and Cpk are statistical tools used to measure process capability.

• SPC is a method of monitoring and controlling a process to ensure it is operating within acceptable limits.

• Cp is a measure of how well the process is centered between the upper and lower specification limits.

• Cpk is a measure of how well the process is capable of producing within the specification limits.

• Cp and Cpk values range from 0 to 1, with values closer to 1 in...read more

Major losses affecting OEE include availability, performance, and quality losses.

• Availability losses occur when equipment is not running due to breakdowns, changeovers, or lack of materials.

• Performance losses occur when equipment is running below its maximum speed or efficiency.

• Quality losses occur when defective products are produced and need to be scrapped or reworked.

• Other losses may include startup and shutdown losses, minor stoppages, and reduced yield.

• Overall Equipment ...read more

Transformers are electrical devices that transfer electrical energy between two or more circuits through electromagnetic induction.

• Transformers are used to increase or decrease voltage levels in electrical circuits.

• There are two main types of losses associated with transformers: copper losses and iron losses.

• Copper losses occur due to the resistance of the copper windings in the transformer and are proportional to the square of the current flowing through the windings.

• Iron lo...read more

Power loss in electrical systems can be categorized into core losses, hysteresis loss, and eddy current loss.

• Core losses occur in the magnetic core of transformers and include hysteresis and eddy current losses.

• Hysteresis loss is caused by the reversal of magnetization in the core material, leading to energy dissipation in the form of heat.

• Eddy current loss is caused by circulating currents induced in the core material due to changing magnetic fields, resulting in heat genera...read more

Strategies for reducing losses in the transformation process include implementing lean manufacturing principles, improving maintenance practices, and investing in employee training.

• Implementing lean manufacturing principles to eliminate waste and improve efficiency

• Improving maintenance practices to prevent breakdowns and reduce downtime

• Investing in employee training to enhance skills and knowledge

• Utilizing technology to automate processes and reduce human error

Autonomous maintenance is a maintenance approach where operators take responsibility for routine maintenance tasks.

• Operators are trained to perform routine maintenance tasks

• Operators conduct inspections and minor repairs

• Autonomous maintenance reduces downtime and improves equipment reliability

• It also frees up maintenance staff to focus on more complex tasks

Maintaining daily line activity in shop floor involves monitoring production progress, identifying and resolving issues, and ensuring adherence to safety and quality standards.

• Monitor production progress and identify any issues that may arise

• Ensure that all equipment is functioning properly and safely

• Maintain a clean and organized work environment

• Ensure that all production processes are in compliance with quality standards

• Communicate with team members and management to ensure...read more

DC current flows in one direction while AC current changes direction periodically. Neither is more powerful, they serve different purposes.

• DC current is used in batteries and electronic devices that require a steady flow of electricity in one direction.

• AC current is used in homes and businesses to power appliances and electronics that require a changing flow of electricity.

• Neither current is more powerful, as they serve different purposes and are measured in different units (...read more

Resistance is the opposition to the flow of electric current, while voltage is the force that drives the current.

• Resistance is measured in ohms and is determined by the material and dimensions of the conductor.

• Voltage is measured in volts and is the potential difference between two points in a circuit.

• The relationship between resistance, voltage, and current is described by Ohm's Law: V = IR.

• In a circuit with multiple resistors, the voltage is divided between them according t...read more

Capacitor start and run motors are types of motors commonly used in various applications.

• Capacitor start motors use a capacitor to provide high starting torque and are commonly used in appliances like air conditioners and refrigerators.

• Capacitor run motors use a capacitor to improve the motor's efficiency and power factor, and are often found in fans, pumps, and compressors.

• Both types of motors have advantages and disadvantages depending on the specific application and requir...read more

OEE can be calculated by multiplying Availability, Performance, and Quality percentages.

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

• Calculate Performance by dividing Actual Production by Maximum Production.

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

• Multiply Availability, Performance, and Quality percentages to get OEE.

Induction motor and universal motor are different in terms of construction, operation, and applications.

• Induction motor is AC motor while universal motor is DC motor

• Induction motor is used for high power applications while universal motor is used for low power applications

• Induction motor has a stator and a rotor while universal motor has a commutator and brushes

• Induction motor is more efficient than universal motor

• Induction motor is used in industrial applications while unive...read more

Kaizen is a Japanese term for continuous improvement, while suggestion refers to ideas or proposals for improvement.

• Kaizen focuses on making small, incremental improvements in processes or systems

• Suggestion involves offering ideas or proposals for improvement to enhance efficiency or quality

• Kaizen and suggestion are key components of continuous improvement initiatives in organizations

• Examples of kaizen include implementing 5S methodology, standardizing work processes, and red...read more

GPS and GSM are both technologies used for communication and tracking. GPS is used for location tracking while GSM is used for communication.

• GPS stands for Global Positioning System and uses satellites to determine the location of an object or person

• GSM stands for Global System for Mobile Communications and is a cellular network used for communication

• GPS is used for location tracking and navigation while GSM is used for communication purposes

• GPS is more accurate than GSM in t...read more

5S is a methodology for organizing a workplace for efficiency and effectiveness. Shop floor refers to the area where production or manufacturing takes place.

• 5S stands for Sort, Set in Order, Shine, Standardize, and Sustain.

• It involves organizing the workplace to eliminate waste, improve efficiency, and ensure safety.

• Examples include labeling tools and equipment, creating designated storage areas, and implementing regular cleaning schedules.

• Shop floor refers to the physical sp...read more

To give a zero rejection report, we need to implement a robust quality control system and ensure adherence to it.

• Establish clear quality standards and communicate them to all team members

• Conduct regular quality checks at every stage of the production process

• Implement corrective actions immediately when quality issues are identified

• Train team members on quality control procedures and provide regular feedback

• Maintain accurate records of quality checks and corrective actions tak...read more

OEE calculation is a measure of manufacturing productivity that combines availability, performance, and quality metrics.

• OEE stands for Overall Equipment Effectiveness

• It is calculated by multiplying availability, performance, and quality metrics

• Availability measures the percentage of time the equipment is available for production

• Performance measures the speed at which the equipment is producing compared to its maximum potential

• Quality measures the percentage of good quality pr...read more

The materials required for shaft, gear, and pulley manufacturing include metals such as steel, cast iron, and aluminum.

• Shafts are commonly made from steel due to its strength and durability.

• Gears can be manufactured from materials like cast iron, steel, or even plastic depending on the application.

• Pulleys are often made from aluminum or steel, with steel being preferred for heavy-duty applications.

• Other materials like bronze, brass, or titanium may also be used depending on s...read more

Electric current is the flow of electric charge through a conductor.

• Electric current is measured in amperes (A)

• It is caused by the movement of electrons

• Direct current (DC) flows in one direction while alternating current (AC) changes direction periodically

• Electric current is used to power electrical devices such as lights, motors, and computers

A p-n junction is the boundary between a p-type and n-type semiconductor material, forming a diode.

• It is a type of semiconductor junction formed by doping two different types of semiconductors.

• The p-type semiconductor has an excess of holes, while the n-type semiconductor has an excess of electrons.

• When the two types of semiconductors are brought together, the electrons and holes diffuse across the junction, creating a depletion region.

• This depletion region acts as a barrier ...read more

Direction control valves are used to control the flow of fluid in a hydraulic or pneumatic system.

• Solenoid-operated directional control valve

• Manual directional control valve

• Pilot-operated directional control valve

• Proportional directional control valve

• Check valve

TPM stands for Total Productive Maintenance and TQM stands for Total Quality Management.

• TPM focuses on maximizing the efficiency of equipment and machinery to prevent breakdowns and defects.

• TQM focuses on improving the quality of products and processes through continuous improvement and customer satisfaction.

• Both TPM and TQM aim to optimize production processes and reduce waste.

• Examples of TPM activities include regular equipment maintenance and operator training.

• Examples of ...read more

Conductors allow free flow of electrons while semiconductors have limited flow due to their structure.

• Conductors have high conductivity while semiconductors have moderate conductivity.

• Conductors have low resistance while semiconductors have high resistance.

• Examples of conductors include metals like copper and aluminum while examples of semiconductors include silicon and germanium.

The electronic equipment and subject names in 2nd semester books are related to technology and engineering.

• Electronic equipment: examples include oscilloscope, multimeter, soldering iron

• Subject names: examples include digital electronics, circuit analysis, microprocessors

Power factor is a measure of how effectively electrical power is being used in a circuit.

• Power factor is the ratio of real power (kW) to apparent power (kVA) in an AC circuit.

• It indicates the efficiency of power usage and the presence of reactive power.

• A power factor of 1 indicates all power is being used effectively, while a power factor less than 1 indicates inefficiency.

• Inductive loads (e.g., motors) have lagging power factor, while capacitive loads (e.g., capacitors) have...read more

The motor starter is a device that starts and stops the motor by controlling the flow of electrical power.

• The motor starter consists of a contactor, overload relay, and control circuit.

• When the start button is pressed, the control circuit energizes the coil of the contactor, closing its contacts and allowing current to flow to the motor.

• The overload relay protects the motor from excessive current by sensing the current flow and tripping the circuit if it exceeds the set limit...read more

Poka-yoke is a quality control technique used to prevent errors or mistakes in a process.

• Poka-yoke is a Japanese term meaning 'mistake-proofing' or 'error-proofing'.

• It involves designing a process or system in a way that makes it impossible or difficult to make mistakes.

• Poka-yoke techniques can include using sensors, alarms, guides, or physical devices to prevent errors.

• Examples of poka-yoke include car ignition systems that prevent the car from starting unless the clutch is ...read more

RADAR is a technology that uses radio waves to detect and locate objects.

• RADAR stands for Radio Detection and Ranging.

• It is used in aviation, military, weather forecasting, and navigation.

• Advantages include long-range detection, all-weather capability, and high accuracy.

• Examples of RADAR systems include air traffic control, weather RADAR, and military surveillance RADAR.

Capacitors are electronic components that store and release electrical energy. They come in various types and have different functions.

• Electrolytic capacitors are commonly used in power supply circuits to smooth out voltage fluctuations.

• Ceramic capacitors are used for high-frequency applications and noise suppression.

• Film capacitors are suitable for applications requiring high voltage and high current handling.

• Tantalum capacitors are used in compact electronic devices due to ...read more

I have worked on Allen Bradley, Siemens, and Mitsubishi PLCs. I have a good understanding of machines and their operations.

• I have experience working with Allen Bradley, Siemens, and Mitsubishi PLCs

• I have a good understanding of how machines operate and their components

• I am familiar with programming languages such as ladder logic and structured text

• I have worked on various types of machines including conveyor systems, packaging machines, and robotic arms

OEE (Overall Equipment Effectiveness) is a measure of how well a manufacturing process is performing.

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

• Availability is the ratio of actual production time to planned production time.

• Performance is the ratio of actual production speed to ideal production speed.

• Quality is the ratio of good units produced to total units produced.

• OEE provides a comprehensive view of process efficiency and helps iden...read more

PPLH improvement refers to the process of improving productivity, profitability, lead time, and quality in a manufacturing setting.

• PPLH stands for Productivity, Profitability, Lead Time, and Quality in a manufacturing process.

• Improving PPLH involves optimizing production processes, reducing waste, enhancing efficiency, and ensuring high product quality.

• Examples of PPLH improvement strategies include implementing lean manufacturing principles, using automation to streamline op...read more

Rejection analysis involves identifying and addressing the root causes of rejected products or processes.

• Identify the specific reasons for rejection, such as defects in materials, design flaws, or manufacturing errors

• Collect data and analyze trends to determine common issues leading to rejection

• Implement corrective actions to address the root causes and prevent future rejections

• Monitor the effectiveness of the corrective actions through follow-up analysis

• Continuous improvemen...read more

A better team can be made by fostering open communication, providing opportunities for growth, and promoting a positive work culture.

• Encourage open communication and active listening

• Provide opportunities for professional development and growth

• Promote a positive work culture through team building activities and recognition programs

A capacitor is an electronic component that stores and releases electrical energy.

• A capacitor consists of two conductive plates separated by an insulating material called dielectric.

• It stores electrical energy in an electric field between the plates.

• Capacitors are commonly used in electronic circuits for energy storage, filtering, timing, and coupling.

• They can be found in various devices such as power supplies, amplifiers, and motors.

• Examples of capacitors include electrolyti...read more

Dielectric is a material that does not conduct electricity but can store and transmit electric charge.

• Dielectric materials have high electrical resistance.

• They are used in capacitors to store and release electrical energy.

• Examples of dielectric materials include glass, rubber, and plastic.

• Dielectric strength is a measure of a material's ability to withstand electrical stress without breaking down.

• Dielectric constant is a measure of a material's ability to store electrical ene...read more

A sequence valve is a type of pressure control valve that opens and allows flow when a set pressure is reached.

• Sequence valves are used to ensure a specific sequence of operations in hydraulic systems.

• They are typically used in applications where multiple hydraulic cylinders need to be actuated in a specific order.

• When the pressure in the system reaches the set pressure of the sequence valve, it opens and allows flow to the next actuator.

• This helps prevent simultaneous operat...read more

TPM stands for Total Productive Maintenance, a system that aims to maximize equipment effectiveness and minimize downtime.

• TPM involves all employees in the maintenance process

• It focuses on proactive maintenance to prevent breakdowns

• TPM aims to improve overall equipment effectiveness (OEE)

• It includes regular cleaning, inspection, and lubrication of equipment

• TPM also involves training employees on maintenance and safety procedures

Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

• Ohm's Law is represented by the equation I = V/R, where I is the current, V is the voltage, and R is the resistance.

• It helps in calculating the current, voltage, and resistance in a circuit.

• For example, if the voltage is 12 volts and the resistance is 4 ohms, then the current flowing through the circuit would be 3 amperes.

• It is a fundamental l...read more

mAh stands for milliampere-hour, a unit of electrical charge commonly used to measure the capacity of a battery.

• mAh is a unit of electrical charge used to measure the capacity of a battery

• It is commonly used in specifications of portable electronic devices like smartphones, tablets, and power banks

• Higher mAh rating indicates longer battery life

Capacity sheet is a document used to track and manage the capacity of resources in a production facility.

• Identify all resources involved in the production process

• Determine the capacity of each resource in terms of units or time

• Create a spreadsheet with columns for each resource and rows for time periods

• Input the capacity of each resource for each time period

• Update the sheet regularly to reflect changes in capacity or production requirements

TPM stands for Total Productive Maintenance and 5S is a workplace organization method.

• TPM is a maintenance strategy that aims to maximize equipment effectiveness and minimize downtime.

• 5S is a method for organizing and maintaining a clean and efficient workplace.

• The 5S's stand for Sort, Set in Order, Shine, Standardize, and Sustain.

• Examples of 5S implementation include labeling tools and equipment, creating designated storage areas, and regularly cleaning workspaces.

LOB stands for Line of Business, referring to a specific product or service within a company.

• LOB helps to categorize different business activities within an organization.

• It can also refer to a specific department or division that focuses on a particular product or service.

• For example, a company may have a separate LOB for their software products and another for their hardware products.

7QC tools are a set of quality control tools used to identify and solve production problems.

• 7QC tools include Pareto chart, cause-and-effect diagram, control chart, histogram, scatter diagram, flowchart, and check sheet.

• These tools help in identifying the root cause of defects and improving the quality of the product.

• They are widely used in manufacturing and assembly industries to ensure efficient production processes.

• The tools are also useful in reducing waste, improving pro...read more

TPM stands for Total Productive Maintenance, a type of maintenance strategy focused on maximizing the efficiency and effectiveness of equipment.

• TPM involves proactive maintenance to prevent breakdowns and improve overall equipment effectiveness

• It emphasizes employee involvement and ownership of equipment maintenance

• TPM aims to eliminate the 6 big losses: breakdowns, setup and adjustment time, idling and minor stoppages, reduced speed, defects, and yield losses

• Examples of TPM ...read more