70+ Interview Questions and Answers

Engineering is the application of scientific and mathematical principles to design and create solutions to real-world problems.

• Engineering involves using scientific and mathematical knowledge to solve practical problems.

• Engineers design and create solutions that improve the quality of life and make tasks more efficient.

• Engineering encompasses various disciplines such as civil, mechanical, electrical, and software engineering.

• Engineers apply their knowledge to develop new tech...read more

There are different types of files and fulfilling customer requirements involves understanding their needs.

• There are different types of files such as text, image, audio, video, executable, etc.

• Understanding customer requirements involves active listening and asking questions to clarify their needs.

• We can fulfill customer requirements by providing quality service, timely delivery, and addressing any concerns or issues they may have.

• Examples of fulfilling customer requirements ...read more

Corrective action is taken to address and resolve existing problems, while preventive action is taken to prevent potential problems from occurring.

• Corrective action focuses on addressing and resolving existing problems or nonconformities.

• Preventive action focuses on identifying and eliminating potential problems before they occur.

• Corrective action is reactive, while preventive action is proactive.

• Corrective action aims to prevent recurrence of the same problem, while preventi...read more

SPC stands for Statistical Process Control. It is a method of quality control that uses statistical methods to monitor and control a process.

• SPC involves collecting and analyzing data to identify and reduce variation in a process

• It helps to ensure that a process is operating within its specified limits and is capable of producing consistent results

• Examples of SPC tools include control charts, histograms, and Pareto charts

• SPC is commonly used in manufacturing, but can also be ...read more

Yes, entropy can be measured using instruments such as calorimeters and thermometers.

• Entropy can be measured indirectly through changes in temperature or heat flow.

• Calorimeters can measure the heat released or absorbed during a reaction, which can be used to calculate entropy.

• Thermometers can measure changes in temperature, which can also be used to calculate entropy.

• Entropy can also be estimated using statistical methods.

• The unit of entropy is joules per kelvin (J/K).

To increase profits, focus on cost reduction, improving efficiency, increasing sales, and exploring new markets.

• Identify and reduce unnecessary costs

• Streamline supply chain processes to improve efficiency

• Implement lean manufacturing techniques to minimize waste

• Optimize inventory management to reduce carrying costs

• Negotiate better deals with suppliers to lower procurement costs

• Improve product quality and customer satisfaction to increase sales

• Develop and execute effective mark...read more

Hardness is the measure of a material's resistance to indentation or scratching.

• Hardness is a property of materials that determines their ability to withstand deformation

• It is often measured using tests like the Rockwell, Brinell, or Vickers hardness tests

• Hardness can be influenced by factors such as the material's composition, heat treatment, and microstructure

• Higher hardness generally indicates greater strength and durability

• For example, diamond is one of the hardest materi...read more

FIFO and LIFO are inventory management methods used to track the flow of goods in and out of a store.

• FIFO (First-In, First-Out) method assumes that the oldest inventory items are sold first, so the goods that were purchased first are also the first to be used or sold.

• LIFO (Last-In, First-Out) method assumes that the newest inventory items are sold first, so the goods that were purchased last are the first to be used or sold.

• FIFO is commonly used in industries where products h...read more

Considerations for selecting materials for mechanical components include strength, durability, corrosion resistance, cost, and compatibility with other materials.

• Strength: Ensure the material can withstand the required loads and stresses.

• Durability: Choose a material that will not degrade or wear out quickly over time.

• Corrosion resistance: Select a material that is resistant to corrosion if the component will be exposed to harsh environments.

• Cost: Balance the cost of the mate...read more

The company manufactures electronic devices such as smartphones, tablets, and smartwatches.

• Produces a wide range of electronic devices

• Includes smartphones, tablets, and smartwatches

• May also manufacture accessories like headphones or chargers

Transistor is a semiconductor device used for amplification and switching. Thermistor is a type of resistor whose resistance varies with temperature. Motor is a machine that converts electrical energy into mechanical energy. Feedback is the process of returning a portion of the output signal back to the input of a system.

• Transistor is used in electronic devices such as radios, televisions, and computers.

• Thermistor is used in temperature sensing applications such as thermostat...read more

A saturation curve shows the relationship between the concentration of a substance and its ability to bind to a receptor.

• The curve starts at zero binding when there is no substance present.

• As the concentration of the substance increases, more receptors become occupied and the binding increases.

• Eventually, all the receptors become occupied and the binding reaches a maximum, which is the saturation point.

• Further increases in substance concentration do not increase binding, as a...read more

Kaizen is a Japanese business philosophy of continuous improvement in processes and practices.

• Kaizen focuses on making small, incremental changes to improve efficiency and quality.

• It involves all employees in the organization, from top management to frontline workers.

• Kaizen emphasizes the importance of standardizing processes and eliminating waste.

• Examples of kaizen include implementing 5S methodology, conducting regular Gemba walks, and using PDCA cycles for problem-solving.

The main components of AC cycle are compressor, condenser, expansion valve and evaporator.

• Compressor compresses the refrigerant gas and raises its temperature.

• Condenser cools down the refrigerant gas and converts it into a high-pressure liquid.

• Expansion valve reduces the pressure of the liquid refrigerant and converts it into a low-pressure liquid.

• Evaporator absorbs heat from the surrounding and converts the low-pressure liquid into a low-pressure gas.

• The cycle repeats as the...read more

The male of the sensor used in the BMD Department is called a sensor connector.

• The male of a sensor is the part that plugs into the female connector.

• It is designed to provide a secure and reliable connection between the sensor and the equipment it is connected to.

• Examples of sensor connectors include USB connectors, HDMI connectors, and audio jack connectors.

To upgrade suppliers, establish clear quality standards, conduct regular audits, provide feedback and support for improvement, and consider alternative suppliers.

• Establish clear quality standards and communicate them to suppliers

• Conduct regular audits to assess supplier performance and identify areas for improvement

• Provide feedback and support to suppliers to help them meet quality standards

• Consider alternative suppliers to ensure competitiveness and continuous improvement

Andon system is a visual management tool used in manufacturing to signal problems or abnormalities in the production process.

• Andon system typically uses lights or displays to indicate the status of production lines.

• It helps in quickly identifying issues and taking corrective actions to minimize downtime.

• Examples of andon systems include Toyota's famous jidoka system and modern digital displays in factories.

The steps for demin wheels involve cleaning, inspecting, repairing, and testing.

• Clean the wheels thoroughly to remove any dirt or debris.

• Inspect the wheels for any damage or defects.

• Repair any issues found, such as replacing worn-out parts or fixing cracks.

• Test the wheels to ensure they meet quality standards and perform as expected.

The most commonly used refrigerant at this time is R-410A, which is a hydrofluorocarbon (HFC) blend.

• R-410A is a popular choice due to its high energy efficiency and environmental friendliness.

• It is commonly used in air conditioning systems and heat pumps.

• R-410A is a hydrofluorocarbon (HFC) blend, which means it does not contain chlorine and is less harmful to the ozone layer compared to older refrigerants like R-22.

Supplier selection criteria are the factors and considerations used to evaluate and choose suppliers for a company's procurement needs.

• Quality and reliability of products or services

• Supplier's financial stability and ability to meet demand

• Supplier's track record and reputation

• Cost and pricing

• Supplier's location and proximity to the company

• Supplier's compliance with industry standards and regulations

• Supplier's capacity for innovation and continuous improvement

• Supplier's commun...read more

The tiers are black to indicate the level of expertise or access in a hierarchical system.

• Black is often associated with power, authority, and sophistication, making it a suitable choice for tiers in a hierarchical structure.

• Using different colors for tiers may cause confusion or misinterpretation of the hierarchy.

• Black is a neutral color that can easily be paired with other colors for design purposes.

• Consistency in color coding helps in maintaining clarity and organization w...read more

The least count of a vernier caliper is 0.02 mm and the least count of a screw gauge is 0.01 mm.

• Vernier caliper least count: 0.02 mm

• Screw gauge least count: 0.01 mm

PPM can be found by dividing the weight of solute by the weight of solution and multiplying by 10^6.

• Determine the weight of the solute and the weight of the solution.

• Divide the weight of the solute by the weight of the solution.

• Multiply the result by 10^6 to get the PPM value.

• Example: If 1 gram of solute is dissolved in 1 million grams of solution, the PPM would be 1.

• PPM stands for parts per million and is used to express the concentration of a solution.

Thermodynamics laws governing energy transfer and transformation.

• First law: Energy cannot be created or destroyed, only transferred or transformed.

• Second law: Entropy of a closed system always increases over time.

• Third law: As temperature approaches absolute zero, entropy approaches a minimum.

• Enthalpy is the heat content of a system at constant pressure.

• Entropy is a measure of the disorder or randomness of a system.

• Enthalpy change can be calculated using the formula: ΔH = ΔU ...read more

Preventive maintenance involves regular inspections, adjustments, cleaning, and replacement of parts to prevent breakdowns and prolong equipment life.

• Regularly inspecting equipment for signs of wear and tear

• Performing routine cleaning and lubrication

• Replacing worn out parts before they fail

• Scheduling regular maintenance checks based on manufacturer recommendations

• Keeping detailed records of maintenance activities

• Implementing predictive maintenance techniques to anticipate iss...read more

SPC stands for Statistical Process Control. It is a method of quality control that uses statistical methods to monitor and control a process.

• SPC involves collecting and analyzing data to identify and reduce variation in a process

• It helps to ensure that a process is operating within its specified limits and is capable of producing consistent results

• Examples of SPC tools include control charts, histograms, and Pareto charts

• SPC can be used in a variety of industries, including m...read more

TPM stands for Total Productive Maintenance. Horsepower is a unit of power used to measure the output of engines.

• TPM is a maintenance strategy that aims to maximize the productivity of equipment by reducing downtime and improving efficiency.

• Horsepower is a unit of power that measures the rate at which work is done. It is commonly used to describe the output of engines, such as in cars or industrial machinery.

• Many refers to the number of units or items being produced or inspec...read more

Thermodynamics is the branch of physics that deals with the relationships between heat and other forms of energy.

• It studies the behavior of systems in response to changes in temperature, pressure, and volume.

• It is concerned with the conversion of heat energy into other forms of energy and vice versa.

• It has three laws that govern the behavior of thermodynamic systems.

• Examples include the study of engines, refrigeration, and power generation.

• It has applications in various field...read more

To solve technical issues, I follow a systematic approach that involves identifying the problem, analyzing it, and finding a solution.

• Identify the problem by gathering information and data

• Analyze the problem by breaking it down into smaller parts and examining each part

• Find a solution by brainstorming ideas, testing them, and selecting the best one

• Implement the solution and monitor its effectiveness

• Continuously improve the process by learning from past experiences

Heat is the transfer of energy from one body to another due to a temperature difference. Entropy is a measure of disorder or randomness.

• Heat is a form of energy that flows from hotter to cooler objects

• Entropy is a measure of the number of ways in which the energy of a system can be distributed among its particles

• Heat can be transferred through conduction, convection, and radiation

• Entropy always increases in a closed system

• Examples of heat include the warmth of the sun, a hot ...read more

The question is unclear and seems to be a combination of multiple questions. It is difficult to provide a specific answer.

• It is unclear which aspect of work the question is referring to

• The reason for working varies from person to person

• Process can refer to a specific workflow or methodology

• Control can refer to quality control or project management

• Parameter can refer to a variable or factor that affects a process or outcome

A compressor is a mechanical device that increases the pressure of a gas by reducing its volume.

• Compressors are commonly used in various industries such as manufacturing, HVAC, and refrigeration.

• They work by taking in a gas at a low pressure and volume, and then compressing it to a higher pressure and lower volume.

• The compressed gas can then be used for various applications such as powering pneumatic tools or refrigeration systems.

• Examples of compressors include reciprocating...read more

Core values are fundamental beliefs that guide behavior and decision-making.

• Core values are the foundation of a company's culture.

• They are the principles that employees are expected to uphold.

• Examples of core values include integrity, teamwork, and innovation.

• Core values should be communicated clearly and consistently.

• They should be reflected in all aspects of the company, from hiring to performance evaluations.

Understanding the principles of refrigeration and thermal engineering is essential for an Operations Manager to effectively lead their team.

• Refrigeration principles involve the transfer of heat from one location to another using a refrigerant.

• Thermal engineering principles involve the study of heat transfer and thermodynamics.

• Leadership skills are necessary to effectively manage a team and ensure that operations run smoothly.

• An Operations Manager must be able to apply their k...read more

AC cycle works by using a refrigerant to absorb heat from inside a space and release it outside, creating a cooling effect.

• AC cycle starts with the refrigerant absorbing heat from inside the space, cooling the air.

• The refrigerant then moves to the compressor where it is pressurized and heated.

• Next, the hot refrigerant moves to the condenser coil where it releases heat to the outside air.

• The refrigerant then goes through an expansion valve, reducing its pressure and temperatur...read more

Inventory control is the process of managing and overseeing the ordering, storage, and usage of a company's inventory.

• It involves monitoring inventory levels to ensure optimal stock levels are maintained.

• Inventory control helps prevent stockouts and overstock situations.

• It includes tracking inventory turnover rates and identifying slow-moving or obsolete items.

• Utilizes tools like barcode scanners, inventory management software, and regular physical counts.

• Effective inventory ...read more

The first film of an actor is often a significant milestone in their career.

• The first film of an actor is usually the one that introduces them to the audience and sets the tone for their future work.

• It can be a breakthrough role that propels them to stardom or a small part that leads to bigger opportunities.

• Examples: Leonardo DiCaprio's first film was 'Critters 3', Meryl Streep's first film was 'Julia'.

The reporting line diagram shows the hierarchy of reporting relationships within the maintenance department.

• Maintenance Technicians report to Maintenance Supervisors

• Maintenance Supervisors report to the Maintenance Manager

• Maintenance Manager reports to the Plant Manager

Quality is meeting or exceeding customer expectations. 5S is a methodology for workplace organization and efficiency.

• Quality is achieved by understanding customer needs and expectations, setting standards, and continuously improving processes.

• Managing 5S involves sorting, simplifying, sweeping, standardizing, and sustaining workplace organization and cleanliness.

• Implementing 5S can improve safety, productivity, and quality.

• Regular audits and employee training are important fo...read more

Quality core tools are essential techniques used in quality engineering to ensure product quality and process improvement.

• Failure Mode and Effects Analysis (FMEA)

• Control Plans

• Statistical Process Control (SPC)

• Measurement Systems Analysis (MSA)

• Advanced Product Quality Planning (APQP)

• Production Part Approval Process (PPAP)

Troubleshooting casting defects and process

• Identify the type of defect and its root cause

• Analyze process parameters and make necessary adjustments

• Ensure proper maintenance of equipment and molds

• Train and educate operators on best practices

• Implement quality control measures to prevent defects

• Collaborate with engineering and production teams to improve processes

Petrol engines use spark ignition, while diesel engines use compression ignition.

• Petrol engines use a spark plug to ignite the fuel-air mixture, while diesel engines rely on compression to ignite the fuel.

• Petrol engines are lighter and more responsive, while diesel engines are more fuel-efficient and have higher torque.

• Petrol engines are typically used in cars and motorcycles, while diesel engines are commonly found in trucks, buses, and heavy machinery.

Different OEMs have different standards for quality requirements.

• Different OEMs may have unique quality standards and specifications

• Understanding and meeting the specific requirements of each OEM is crucial

• Examples include automotive OEMs like Toyota, Ford, and BMW each having their own quality standards

Expected CTC is negotiable and I am willing to relocate nearby for the job.

• Expected CTC is negotiable based on the job role and responsibilities.

• I am open to relocating to a nearby location for the Store Incharge position.

• I am flexible with the location as long as it is within a reasonable distance for commuting.

• I am excited about the opportunity and willing to discuss further details during the interview.

MTTR stands for Mean Time To Repair and MTBF stands for Mean Time Between Failures.

• MTTR is the average time taken to repair a failed component or system.

• MTBF is the average time between failures of a component or system.

• MTTR is usually measured in hours or minutes, while MTBF is measured in hours.

• MTTR is a key metric in maintenance management to assess the efficiency of maintenance processes.

• MTBF is a key metric in reliability engineering to assess the reliability of a system...read more

I have experience working as a designer on AutoCAD and CATIA V5.

• Proficient in creating 2D and 3D models using AutoCAD and CATIA V5

• Knowledge of drafting, modeling, and assembly design

• Experience in creating technical drawings and blueprints

• Ability to collaborate with engineers and other team members to develop designs

• Familiarity with industry standards and best practices in design

A machine is a device that uses energy to perform a specific task or function.

• Machines can be powered by electricity, fuel, or human effort.

• Examples of machines include cars, computers, and washing machines.

• Machines can be simple or complex, depending on their intended use and function.

• Machines have revolutionized the way we live and work, making tasks easier and more efficient.

CNC machines can be classified based on the number of axes they operate on.

• CNC machines can be classified as 2-axis, 3-axis, 4-axis, 5-axis, or multi-axis machines.

• The number of axes determines the complexity and flexibility of the machine.

• For example, a 2-axis CNC machine can move in two directions (X and Y), while a 5-axis machine can move in five directions (X, Y, Z, A, and B).

To stop Windows update, you can temporarily disable the Windows Update service.

• Open the Run dialog by pressing Windows key + R, then type 'services.msc' and press Enter.

• Scroll down to find 'Windows Update' in the list of services.

• Right-click on 'Windows Update' and select 'Stop'.

• To prevent Windows Update from starting again, you can set the startup type of the service to 'Disabled'.

Refrigerant is a substance used in cooling systems to absorb and release heat, enabling the transfer of heat from one location to another.

• Refrigerants are commonly used in air conditioning systems, refrigerators, and freezers.

• They undergo a phase change from a gas to a liquid and back again, allowing them to absorb and release heat.

• Common refrigerants include hydrofluorocarbons (HFCs), chlorofluorocarbons (CFCs), and hydrochlorofluorocarbons (HCFCs).

Refrigerate means to cool or preserve food or other items at a low temperature.

• Refrigerate is the process of storing food or other items in a refrigerator or other cold storage to keep them fresh and prevent spoilage.

• Examples of items that need to be refrigerated include dairy products, meats, fruits, and vegetables.

• Refrigeration slows down the growth of bacteria and other microorganisms that can cause food to spoil.

• It is important to follow proper refrigeration guidelines to...read more

A synchronous motor is a type of AC motor in which the rotation of the shaft is synchronized with the frequency of the supply current.

• Synchronous motors operate at a constant speed determined by the frequency of the electrical supply.

• They are commonly used in applications where precise speed control is required, such as in industrial processes or power generation.

• Synchronous motors are more efficient than induction motors at higher speeds.

• Examples of synchronous motors includ...read more

The motor used in a fan is typically an induction motor.

• Most fans use single-phase induction motors

• Ceiling fans typically use capacitor-start induction motors

• Industrial fans may use three-phase induction motors

Quality assurance focuses on preventing defects, while quality control focuses on identifying and correcting defects.

• Quality assurance involves creating processes and procedures to ensure that products or services meet specified requirements.

• Quality control involves inspecting and testing products or services to identify any defects or deviations from the specified requirements.

• Quality assurance aims to prevent defects from occurring in the first place, while quality control ...read more

Thermodynamic rules govern the behavior of energy and its transformation in a system.

• The first law of thermodynamics states that energy cannot be created or destroyed, only transferred or converted.

• The second law of thermodynamics states that the total entropy of a closed system always increases over time.

• The third law of thermodynamics states that the entropy of a perfect crystal at absolute zero is zero.

• Thermodynamic processes can be classified as isothermal, isobaric, isoc...read more

An internal combustion engine (IC engine) is a type of engine that generates power by burning fuel inside the engine.

• IC engines are commonly used in vehicles, such as cars, motorcycles, and trucks.

• There are two main types of IC engines: spark-ignition engines (petrol engines) and compression-ignition engines (diesel engines).

• IC engines work by converting the chemical energy of fuel into mechanical energy through combustion.

• The combustion process in an IC engine involves a ser...read more

AC cycle refers to the alternating current cycle, which is the flow of electric current that periodically reverses direction.

• AC cycle is the flow of electric current that changes direction periodically.

• It is commonly used in household electrical systems to power appliances.

• AC cycles typically have a frequency of 50 or 60 Hz, depending on the region.

• The AC cycle consists of two half cycles - positive and negative.

• AC cycles are represented by sine waves on an oscilloscope.

My dwm stands for dynamic window manager, a tiling window manager for X11.

• Dwm is a lightweight and efficient window manager that arranges windows in a non-overlapping layout.

• It allows users to control windows using keyboard shortcuts rather than a mouse.

• Dwm is highly customizable through editing its source code.

• Some popular alternatives to dwm include i3, awesome, and bspwm.

The energy formula calculates the amount of energy in a system.

• The energy formula is E = mc^2, where E represents energy, m represents mass, and c represents the speed of light.

• This formula is derived from Einstein's theory of relativity.

• It states that energy and mass are interchangeable and can be converted into each other.

• The formula is widely used in physics and has significant implications in various fields, including nuclear energy and particle physics.

5S is a methodology for organizing and improving the workplace.

• Sort - separate necessary items from unnecessary ones

• Set in order - arrange necessary items in a logical manner

• Shine - clean and inspect the workplace regularly

• Standardize - establish procedures and guidelines for maintaining the workplace

• Sustain - ensure that the 5S system is maintained and continuously improved

• Example: Implementing 5S in a manufacturing plant to improve efficiency and safety

APQP (Advanced Product Quality Planning) is a structured process used in the automotive industry to ensure quality and reliability of products.

• APQP involves defining and documenting the steps needed to ensure that a product meets customer requirements.

• It includes activities such as product design and development, process design and development, product and process validation, and feedback assessment.

• APQP helps in identifying potential risks and issues early in the product dev...read more

Least count of screw gauge is the smallest measurement that can be read on the scale of the screw gauge.

• The least count of a screw gauge is determined by the pitch of the screw and the number of divisions on the circular scale.

• It is calculated as the pitch divided by the number of divisions on the circular scale.

• For example, if the pitch is 0.5 mm and there are 100 divisions on the circular scale, the least count would be 0.005 mm.

I started my career as a maintenance technician and worked my way up to Maintenance Manager through dedication and hard work.

• Started as a maintenance technician

• Gained experience in troubleshooting and repairing equipment

• Promoted to supervisor role

• Managed a team of technicians

• Implemented preventive maintenance programs

• Achieved cost savings through efficient maintenance practices

R-134a is a commonly used refrigerant in air conditioning and refrigeration systems.

• R-134a is a hydrofluorocarbon (HFC) refrigerant.

• It has a low global warming potential (GWP) and ozone depletion potential (ODP).

• R-134a is non-toxic and non-flammable.

• It is used in automotive air conditioning systems, commercial refrigeration, and heat pumps.

• Other refrigerants include R-410A, R-22, and R-404A.

Project management involves planning, organizing, and overseeing the execution of a project to achieve specific goals within a set timeframe and budget.

• Project management includes defining project goals and objectives

• It involves creating a detailed project plan with tasks, timelines, and resources

• Project managers coordinate and communicate with team members to ensure project progress

• Monitoring and controlling project activities to stay on track and within budget

• Adapting to ch...read more