1500+ Quality Engineer Interview Questions and Answers

The welding procedure for P91 material involves preheating, maintaining interpass temperature, and post-weld heat treatment.

• P91 material is a type of high-strength, low-alloy steel used in high-temperature applications.

• The welding procedure for P91 material typically includes preheating the base metal to a specific temperature range.

• Interpass temperature control is crucial to prevent cracking and maintain the mechanical properties of the weld.

• Post-weld heat treatment is neces...read more

The Lathe machine Tool is typically placed at a specific angle based on the type of operation being performed.

• The angle of the Lathe machine Tool is determined by the type of material being worked on and the desired outcome of the operation.

• For turning operations, the tool is usually placed at a 90-degree angle to the workpiece.

• For facing operations, the tool is placed parallel to the workpiece.

• Different angles may be used for specific operations such as threading or grooving...read more

I investigate a quality issue by gathering data, analyzing root causes, implementing corrective actions, and monitoring results.

• Gather relevant data and documentation related to the quality issue

• Analyze the data to identify potential root causes of the issue

• Develop and implement corrective actions to address the root causes

• Monitor the effectiveness of the corrective actions and make adjustments as needed

To solve problems in internal rejection, identify root causes, implement corrective actions, and continuously monitor and improve processes.

• Identify root causes of internal rejection through data analysis and process evaluation.

• Implement corrective actions to address identified issues, such as training, process changes, or equipment upgrades.

• Establish a system for monitoring internal rejection rates and track improvements over time.

• Involve cross-functional teams in problem-so...read more

Our company manufactures high-quality automotive parts for various vehicles.

• Specializes in producing components such as engine parts, suspension systems, and braking systems

• Works closely with automotive manufacturers to meet specific requirements and standards

• Utilizes advanced technology and quality control measures to ensure precision and durability

• Examples: engine pistons, shock absorbers, brake pads

The chances of finding a great white depend on the location and time of year.

• Great whites are commonly found in coastal areas with cooler water temperatures.

• They are more likely to be spotted during their feeding season, which varies by location.

• The chances of encountering a great white while swimming or surfing are relatively low.

• However, if you are actively seeking them out on a shark diving expedition, your chances are higher.

There are several types of transformer testing including routine, type, special, and field testing.

• Routine testing is done during the manufacturing process to ensure the transformer meets standard specifications.

• Type testing is done on a sample transformer to ensure it meets specific requirements before being put into service.

• Special testing is done on transformers that have been in service for a long time or have undergone repairs or modifications.

• Field testing is done on tr...read more

To draw a particular component in AutoCAD, you can use the various drawing tools and commands available in the software.

• Open AutoCAD software and create a new drawing file.

• Use the Line, Circle, Arc, and other drawing tools to sketch the component.

• Use the Modify tools to edit and refine the drawing as needed.

• Add dimensions and annotations to accurately represent the component.

• Save the drawing file in the desired format for future reference.

Supplier improvement can be achieved through collaboration, feedback, and performance monitoring.

• Establish clear communication channels with suppliers to provide feedback on areas of improvement.

• Implement regular performance evaluations to track supplier quality and delivery metrics.

• Collaborate with suppliers to identify root causes of issues and work together on corrective actions.

• Provide training and resources to suppliers to help them meet quality standards.

• Consider divers...read more

Visual inspection is a method of evaluating the quality of a product or process by visually examining it.

• Visual inspection involves using the human eye to detect defects, flaws, or deviations from the desired standards.

• It is a non-destructive testing method that can be performed at various stages of production or during final inspection.

• Visual inspection can be aided by tools such as magnifying glasses, microscopes, or cameras.

• Examples of visual inspection include checking fo...read more

Slump can be managed by adjusting the water content and adding admixtures as per client requirements.

• Adjust water content to increase or decrease slump

• Add admixtures like plasticizers or superplasticizers to increase or decrease slump

• Test slump regularly to ensure it meets client requirements

• Document all adjustments made to slump for quality control purposes

BR stands for Brake Resistor in E 250 BR.

• BR is an abbreviation for Brake Resistor.

• It is used in E 250 BR, which is a type of electric motor.

• The Brake Resistor is used to dissipate the energy generated by the motor when it is stopped.

• This prevents damage to the motor and other components.

• Examples of applications where E 250 BR might be used include conveyor belts, cranes, and hoists.

Boilers are classified into different types based on their design, fuel type, and usage.

• Fire-tube boilers

• Water-tube boilers

• Electric boilers

• Gas boilers

• Oil boilers

• Solid fuel boilers

• Condensing boilers

• Combi boilers

Technical documentation in Quality control includes procedures, work instructions, specifications, test methods, and records.

• Procedures outline the steps to be followed for quality control processes.

• Work instructions provide detailed instructions on how to perform specific tasks.

• Specifications define the requirements that a product or process must meet.

• Test methods describe the methods used to test product quality.

• Records document the results of quality control activities for...read more

The five core tools are a set of quality management tools used in various industries.

• The five core tools are: APQP (Advanced Product Quality Planning), PPAP (Production Part Approval Process), FMEA (Failure Mode and Effects Analysis), MSA (Measurement System Analysis), and SPC (Statistical Process Control).

• These tools are used to ensure product and process quality, identify and prevent potential issues, and improve overall quality performance.

• For example, APQP is used to plan...read more

Quality assurance is the process of ensuring that products or services meet specified requirements and standards.

• Quality assurance involves establishing and implementing processes to prevent defects and errors.

• It includes activities such as planning, designing, and executing tests to verify product quality.

• Quality assurance also involves monitoring and evaluating processes to identify areas for improvement.

• Examples of quality assurance techniques include statistical process c...read more

A quality inspector is responsible for ensuring that products or services meet specified quality standards.

• Quality inspectors perform inspections and tests on products or services to identify any defects or deviations from quality standards.

• They use various tools and techniques such as visual inspections, measurements, and testing equipment to assess quality.

• Quality inspectors may also review documentation and records to ensure compliance with quality procedures and regulatio...read more

The carbon percent in carbon steel varies from 0.05% to 2.0% depending on the grade.

• Carbon steel is an alloy of iron and carbon.

• The amount of carbon in carbon steel determines its strength and hardness.

• Low carbon steel has less than 0.3% carbon, while high carbon steel has more than 0.6% carbon.

• Examples of carbon steel grades include ASTM A36, SAE 1045, and AISI 1095.

8D and CAPA are problem-solving methodologies used in quality management.

• 8D stands for 8 Disciplines and is used to identify, correct and prevent problems

• CAPA stands for Corrective and Preventive Action and is used to identify and eliminate the root cause of a problem

• Both methodologies involve a structured approach to problem-solving and require documentation of the process and results

• They are commonly used in industries such as manufacturing, automotive, and healthcare

The least count of micrometer is the smallest measurement that can be read on the micrometer scale.

• The least count of micrometer is typically 0.01 mm or 0.001 cm.

• It can be calculated by dividing the pitch of the screw by the number of divisions on the thimble.

• For example, if the pitch is 0.5 mm and there are 50 divisions on the thimble, the least count would be 0.01 mm.

• The least count is important for accurate measurements and should be considered when using a micrometer.

I have experience working with JBM Green energy systems in implementing quality control measures and ensuring compliance with industry standards.

• Implemented quality control measures to ensure products meet industry standards

• Collaborated with cross-functional teams to improve processes and reduce defects

• Conducted audits and inspections to identify areas for improvement

• Utilized statistical analysis tools to monitor and improve product quality

A fishbone diagram is a visual tool used to identify and organize potential causes of a problem or effect.

• Also known as Ishikawa diagram or cause-and-effect diagram

• Categories of potential causes are represented as branches off the main spine

• Helps in identifying root causes of a problem

• Commonly used in quality management and process improvement

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

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

• It helps ensure that parts fit together properly and function as intended.

• GD&T uses symbols, such as concentricity, flatness, and perpendicularity, to communicate tolerance requirements.

• It is commonly used in engineering drawings and manufacturing proce...read more

To reduce rejection, focus on improving quality control measures, enhancing employee training, and implementing effective problem-solving techniques.

• Implement robust quality control measures to identify and rectify defects early on.

• Enhance employee training programs to ensure they have the necessary skills and knowledge to produce high-quality products.

• Implement effective problem-solving techniques, such as root cause analysis, to identify and address the underlying causes of...read more

Precision refers to the closeness of measurements to each other, while accuracy refers to the closeness of measurements to the true value.

• Precision is about consistency and reproducibility of measurements.

• Accuracy is about how close measurements are to the true value.

• A diagram can show a target with multiple shots clustered closely together (precision) but not necessarily near the bullseye (accuracy).

GD&T stands for Geometric Dimensioning and Tolerancing. It is a system used to define and communicate engineering tolerances.

• GD&T is a symbolic language used to specify the dimensions, tolerances, and geometric characteristics of a part

• It helps ensure that parts are manufactured and assembled correctly, leading to improved quality and functionality

• GD&T uses symbols, such as concentricity, perpendicularity, and flatness, to define the allowable variations in a part's geometry

• I...read more

Steel is an alloy of iron and carbon, while stainless steel is a type of steel with added chromium for corrosion resistance. Types of steel include carbon steel, alloy steel, and tool steel.

• Steel is an alloy of iron and carbon

• Stainless steel contains chromium for corrosion resistance

• Types of steel include carbon steel, alloy steel, and tool steel

Corrective and preventive actions are taken when nonconformities are identified or potential issues are anticipated.

• Corrective actions are taken after a nonconformity has occurred to prevent its recurrence.

• Preventive actions are taken to prevent potential issues from occurring in the future.

• Corrective actions address root causes, while preventive actions focus on potential risks.

• Examples of corrective actions include retraining employees, updating procedures, or implementing ...read more

Nitrogen pinholes are typically smaller and more numerous compared to hydrogen pinholes.

• Nitrogen pinholes are usually smaller in size and more numerous than hydrogen pinholes.

• Hydrogen pinholes are larger in size and less frequent than nitrogen pinholes.

• Nitrogen pinholes are commonly found in aluminum castings, while hydrogen pinholes are more common in steel castings.

Process parameters such as temperature, pressure, and time can significantly impact the mechanical properties of a material.

• Temperature: Higher temperatures can increase ductility but decrease strength.

• Pressure: Higher pressure can improve density and strength.

• Time: Longer processing times can lead to better homogeneity and mechanical properties.

• Example: Heat treatment of steel involves specific temperature and time parameters to achieve desired mechanical properties.

Measuring instruments used in quality engineering include calipers, micrometers, and gauges. Quality processes involve continuous improvement and adherence to standards like ISO certification.

• Common measuring instruments used in quality engineering are calipers, micrometers, and gauges.

• Quality processes focus on continuous improvement through methods like Six Sigma and Lean manufacturing.

• ISO certification ensures that a company's quality management system meets international ...read more

GTP of 5MVA Power Transformers refers to the Guaranteed Technical Particulars.

• GTP includes specifications such as rated power, voltage ratio, impedance, and losses.

• It is a contractual agreement between the manufacturer and the customer.

• GTP ensures that the transformer meets the required performance standards.

• For a 5MVA transformer, the GTP would specify details such as 11kV/433V voltage ratio, 6% impedance, and 2.5% losses.

The vernier caliper least count is the smallest measurement that can be read on the caliper scale.

• The least count of a vernier caliper is determined by the number of divisions on the main scale and the vernier scale.

• It is calculated by dividing the smallest division on the main scale by the number of divisions on the vernier scale.

• For example, if the smallest division on the main scale is 0.1 mm and the vernier scale has 10 divisions, the least count would be 0.01 mm.

• The leas...read more

Draft an email to send to a supplier for a complaint related issue.

• Start with a polite greeting and introduce yourself.

• Clearly state the reason for the complaint and provide specific details.

• Include any relevant documentation or evidence to support your claim.

• Request a prompt resolution and provide a deadline if necessary.

• End the email with a polite closing and thank the supplier for their attention.

7 QC tools and SPC are essential quality control techniques used in manufacturing and other industries.

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

• SPC involves statistical analysis of data to identify and control process variation.

• Both techniques are used to improve quality, reduce defects, and increase efficiency.

• They are widely used in industries such as automotive, electronics, and healthc...read more

Confidence is belief in oneself while overconfidence is excessive belief in oneself.

• Confidence is a positive trait that helps individuals achieve their goals.

• Overconfidence can lead to underestimating risks and making mistakes.

• Confidence is based on experience and knowledge while overconfidence is based on assumptions and arrogance.

• Confidence is important in the workplace while overconfidence can lead to conflicts and poor decision-making.

• Examples of confidence include speaki...read more

The major phases of quality are planning, assurance, control, and improvement.

• Planning phase involves defining quality standards and creating a plan to achieve them.

• Assurance phase involves implementing the plan and ensuring that the standards are met.

• Control phase involves monitoring and measuring the quality of the product or service.

• Improvement phase involves analyzing data and making changes to improve quality.

• Examples of quality tools used in these phases include Six Sig...read more

The seven QC tools are basic statistical tools used to identify and solve quality problems.

• Check sheets - used to collect data in a structured manner

• Pareto charts - used to identify the most frequent problems

• Histograms - used to show the distribution of data

• Cause-and-effect diagrams - used to identify the root cause of a problem

• Control charts - used to monitor a process over time

• Scatter diagrams - used to show the relationship between two variables

• Flowcharts - used to show th...read more

APQP stands for Advanced Product Quality Planning.

• APQP is a structured approach to product development and manufacturing.

• It is a framework used to ensure that quality is built into a product from the beginning.

• APQP involves cross-functional collaboration and proactive planning.

• It includes various phases such as planning, design, development, and production.

• APQP helps in identifying and mitigating potential risks and ensuring customer satisfaction.

• It is widely used in industri...read more

Severity in PFMEA is declared based on the potential impact of a failure mode on the overall process or product.

• Severity is typically rated on a scale from 1 to 10, with 1 being the least severe and 10 being the most severe.

• Consider the consequences of a failure mode on customer safety, regulatory compliance, product functionality, and overall process performance.

• Examples of high severity failure modes include those that could result in serious injury or death, non-compliance...read more

Chemical properties refer to the behavior of materials in different chemical environments, while mechanical properties refer to how materials respond to applied forces.

• Chemical properties include corrosion resistance, chemical stability, and reactivity with other substances.

• Mechanical properties include strength, hardness, ductility, and toughness.

• Different grades of casting materials will have varying chemical and mechanical properties based on their composition and processi...read more

Electronics components include resistors, capacitors, diodes, transistors, integrated circuits, and more.

• Resistors

• Capacitors

• Diodes

• Transistors

• Integrated circuits

Electronics deals with the flow of electrons, while electrical focuses on the generation, distribution, and use of electricity.

• Electronics is concerned with the behavior and control of electrons in devices and systems.

• Electrical engineering deals with the generation, transmission, and use of electrical power.

• Electronics involves designing and building electronic circuits and devices, such as computers and smartphones.

• Electrical engineering includes working with power systems,...read more

7 QC tools include Pareto chart, fishbone diagram, scatter diagram, etc. 5 core tools include APQP, PPAP, FMEA, MSA, and SPC.

• 7 QC tools: Pareto chart, fishbone diagram, scatter diagram, control chart, histogram, check sheet, and stratification.

• 5 core tools: Advanced Product Quality Planning (APQP), Production Part Approval Process (PPAP), Failure Mode and Effects Analysis (FMEA), Measurement Systems Analysis (MSA), and Statistical Process Control (SPC).

The 5 core tools of Quality are essential techniques used in quality management to ensure products and processes meet standards.

• 1. Process Flowcharts: Used to visually represent the steps in a process.

• 2. Cause and Effect Diagrams (Fishbone Diagrams): Used to identify and analyze potential causes of a problem.

• 3. Control Charts: Used to monitor process variation over time.

• 4. Check Sheets: Used to collect and analyze data in a systematic way.

• 5. Pareto Charts: Used to prioritize ...read more

Resistor limits current flow, resistance opposes current flow, resistivity is material property.

• Resistor is a component that limits current flow in a circuit.

• Resistance is the measure of how much a material opposes the flow of electric current.

• Resistivity is a material property that determines how well a material resists the flow of electric current.

• Resistor example: A light bulb in a circuit.

• Resistance example: The filament in a light bulb.

• Resistivity example: Copper has low...read more

Bolt grade refers to the strength and hardness of a bolt. It is indicated by a number stamped on the head of the bolt.

• Bolt grade is determined by the material and manufacturing process of the bolt.

• Higher grade bolts are stronger and can withstand more stress.

• Bolt grade is indicated by a number stamped on the head of the bolt, such as 8.8 or 10.9.

• The first number indicates the ultimate tensile strength in MPa, while the second number indicates the yield strength in MPa.