1500+ Quality Engineer Interview Questions and Answers

MSA is Measurement System Analysis used to assess the quality of a measurement system.

• MSA helps to identify the sources of variation in a measurement system.

• There are two types of MSA: Variable MSA and Attribute MSA.

• Variable data is continuous data that can be measured, while Attribute data is discrete data that can be counted.

• False and Miss rates are defined to calculate the accuracy of a measurement system.

• For example, if a measurement system is used to measure the length o...read more

The 7 QC tools are a set of problem-solving techniques used in quality management. They include Pareto analysis, X-chart and R-chart, why-why analysis, red bin analysis, and root cause analysis.

• Pareto analysis is a technique used to prioritize problems or causes based on their frequency or impact.

• X-chart and R-chart are statistical control charts used to monitor process variation and identify any out-of-control conditions.

• Why-why analysis is a method of repeatedly asking 'why...read more

Prioritize defect resolution while balancing release timelines and stakeholder communication.

• Assess the severity and impact of the P1 defect on users and business operations.

• Communicate transparently with stakeholders about the defect and potential risks of release.

• Evaluate if a workaround can be implemented to mitigate the defect's impact temporarily.

• Consider delaying the release if the defect poses significant risks to user experience or safety.

• Document the defect and ensur...read more

The number of mangoes the monkey ate on the first day can't be determined with the given information.

• The question provides information about the monkey's apple consumption and the total number of mangoes eaten in 100 days.

• However, there is no direct information about the number of mangoes eaten on the first day.

• Without additional data or calculations, it is impossible to determine the exact number of mangoes eaten on the first day.

IATF audit is a quality management system audit for automotive suppliers. It was created to improve quality and reduce waste in the industry.

• IATF stands for International Automotive Task Force

• The audit is based on the ISO 9001 standard and includes additional requirements specific to the automotive industry

• The cause of IATF was to create a globally recognized quality management system for automotive suppliers

• The relationship between IATF and OEM companies is that OEMs require...read more

The question involves solving mathematical puzzles related to arranging objects and counting.

• For the calculator image, check for missing buttons, incorrect numbers, or distorted display.

• To arrange 10 pearls on a rectangle, place 2 pearls on each side and 2 pearls in each corner.

• To find a correct pair of socks, you need to take out 13 socks.

• To determine the number of men and horses, set up equations based on the number of heads and legs.

PPAP stands for Production Part Approval Process. It is a standardized process in the automotive industry to ensure quality of parts.

• PPAP is a set of documents and procedures used to ensure that a supplier's parts meet the customer's requirements and specifications.

• There are five levels of PPAP documentation, with each level requiring more extensive testing and documentation.

• Some of the documents included in a PPAP submission are: control plan, FMEA, dimensional results, mate...read more

The types of defects I face in my parts include dimensional inaccuracies, surface imperfections, material flaws, and assembly errors.

• Dimensional inaccuracies: Parts not meeting specified measurements

• Surface imperfections: Scratches, dents, or blemishes on the surface

• Material flaws: Defects in the material composition or structure

• Assembly errors: Incorrectly assembled parts leading to functionality issues

There are several types of pipes used in water supply projects, including PVC, HDPE, copper, galvanized steel, and PEX.

• PVC pipes are commonly used due to their affordability, durability, and resistance to corrosion.

• HDPE pipes are known for their flexibility, high strength, and resistance to chemicals.

• Copper pipes are often used for indoor plumbing due to their excellent heat and corrosion resistance.

• Galvanized steel pipes are used in older water supply systems but are being p...read more

FoA, MoA, LoA are types of documents used in quality engineering.

• FoA stands for Field of Application, which defines the scope and limitations of a product or process.

• MoA stands for Method of Analysis, which outlines the procedures and techniques used to analyze a product or process.

• LoA stands for Limit of Acceptance, which specifies the acceptable range or criteria for a product or process.

• Other types of documents in quality engineering include SOPs (Standard Operating Proced...read more

7 QC tools, 5S, 8D, Papp, Kaizen, Poka-yoke, and SPC are quality management tools used to improve processes and reduce defects.

• 7 QC tools are a set of problem-solving tools used to identify and solve quality-related issues.

• 5S is a workplace organization method that improves efficiency and safety.

• 8D is a problem-solving method used to identify, correct, and prevent recurring problems.

• Papp is a method used to analyze and improve processes.

• Kaizen is a continuous improvement meth...read more

Answers to questions related to Quality Engineering including GD&T, PPAP, SPC, MSA, IATF 16949 audit, PQCS, and FMEA.

• GD&T is Geometric Dimensioning and Tolerancing used to define and communicate engineering tolerances

• Flatness can be checked using a surface plate and a dial indicator

• Run-out is the amount of wobble in a rotating part and can be checked using a dial indicator

• Concentricity is the condition where two or more features share the same axis and can be checked using a ...read more

Yes, I have experience in project monitoring and inspection of water supply projects.

• I have worked on multiple water supply projects where I was responsible for monitoring and inspecting the quality of the water supply.

• I have conducted regular inspections to ensure compliance with quality standards and regulations.

• I have implemented quality control measures to identify and address any issues or deficiencies in the water supply system.

• I have collaborated with engineers and tec...read more

To confirm the proper vertical alignment of Tubewell pipe lowering, measurements and visual inspections can be conducted.

• Measure the verticality of the pipe using a plumb bob or laser level.

• Inspect the pipe for any visible signs of misalignment or tilting.

• Compare the measurements and visual observations with the specified tolerances.

• Ensure that the pipe is securely anchored to prevent any movement or deviation from the desired alignment.

• Perform regular checks during the lower...read more

I regularly use Python in my work. I am certified in Six Sigma and Lean Manufacturing.

• Regularly use Python for scripting and automation tasks

• Certified in Six Sigma for process improvement

• Certified in Lean Manufacturing for optimizing production processes

Answering questions related to quality engineering and mechanical engineering.

• First angle and third angle symbol representation are used in engineering drawings to indicate the orientation of the object being drawn.

• Quality refers to the degree of excellence of a product or service.

• Mechanical engineering is a branch of engineering that deals with the design, manufacturing, and maintenance of mechanical systems.

• Seven quality tools are Check Sheets, Control Charts, Histograms, P...read more

Answering questions related to quality engineering including 5S, 7QC tools, QC vs QA, GD&T, ISO standards, and measurement tools.

• 5S is a methodology for workplace organization and standardization

• 7QC tools include Pareto charts, cause-and-effect diagrams, control charts, etc.

• Sampling plan is a method for selecting a subset of items for inspection

• QC focuses on detecting and correcting defects, while QA focuses on preventing defects

• GD&T is a system for specifying and tolerancing...read more

Bukholz relay is a protective device used in oil-immersed transformers to detect the faults inside the transformer.

• Bukholz relay is installed in the oil conservator tank of the transformer.

• It detects the faults like overheating, overloading, and short circuits inside the transformer.

• It works on the principle of gas detection and oil flow detection.

• It sends an alarm signal to the control room in case of any fault detected.

• It also stops the transformer from further damage by tr...read more

Quality control, FMEA, CAPA, process control, BIS standards, IQC/PAC/OQC, sampling plan, CTQ/CTP are all important aspects of product launch.

• Quality control involves ensuring that a product meets the desired quality standards.

• FMEA (Failure Mode and Effects Analysis) is a systematic approach to identifying and preventing potential product failures.

• CAPA (Corrective and Preventive Action) is a process for identifying and addressing issues that arise during product development an...read more

The firing order of a 4 cylinder engine is 1-3-4-2.

• Firing order refers to the sequence in which each cylinder fires during the engine's cycle.

• The firing order is determined by the engine's design and can vary between different types of engines.

• In a 4 cylinder engine, the firing order is usually 1-3-4-2.

• This means that the first cylinder to fire is the one closest to the front of the engine, followed by the third cylinder, then the fourth, and finally the second.

Measuring instruments used in quality engineering include calipers, micrometers, gauges, and CMMs.

• Calipers are used to measure dimensions of objects with high precision.

• Micrometers are used to measure small distances or thicknesses with great accuracy.

• Gauges are used to check the conformity of a part to its specifications.

• Coordinate Measuring Machines (CMMs) are used to measure the geometrical characteristics of objects.

• Other measuring instruments include height gauges, profi...read more

Vernier caliper and micrometer are both precision measuring instruments, but they differ in their design and measurement range.

• Vernier caliper measures both internal and external dimensions with a range of 0-150mm or 0-6 inches.

• Micrometer measures thickness or outside dimensions with a range of 0-25mm or 0-1 inch.

• Vernier caliper uses a sliding scale and a vernier scale for measurement, while micrometer uses a screw mechanism.

• Micrometer provides more accurate measurements than...read more

To save costs and sell products at a reasonable price while maintaining quality, we can optimize production processes, source materials efficiently, and minimize waste.

• Optimize production processes to reduce waste and increase efficiency

• Source materials efficiently by negotiating with suppliers for better prices

• Minimize waste by implementing lean manufacturing principles

• Invest in research and development to find innovative ways to use low-cost materials without compromising q...read more

Yes

• Yes, I am familiar with preparing checklists for every component of an item to be executed as per the RFP.

• I understand the importance of having a comprehensive checklist to ensure all requirements are met.

• I have experience in creating checklists for quality control processes and inspections.

• I am proficient in identifying critical components and their associated requirements.

• I can prioritize checklist items based on their significance and impact on quality.

• I am detail-orien...read more

Angle probe selection for rail inspection is based on the thickness of the rail, following the rule 90°-T.

• Angle probe selection depends on the thickness of the job

• For inspecting the head of the rail, a 45° angle probe is used

• For inspecting the web and foot of the rail, a 70° angle probe is used

• The rule for selecting the angle probe is 90°-T, where T is the thickness of the job

Occurrence FMEA is used to identify and prioritize potential failure modes based on their frequency of occurrence.

• Occurrence FMEA helps in identifying potential failure modes that occur frequently and prioritizing them for corrective action.

• It helps in reducing the risk of failure and improving product quality.

• CAPA (Corrective and Preventive Action) is a process used to identify, investigate, and correct problems that arise in a product or process.

• Customer relations are impro...read more

My approach to project management strategy is to prioritize clear communication, establish realistic goals, and continuously monitor progress.

• Prioritize clear and effective communication with all stakeholders

• Establish realistic and achievable goals and milestones

• Continuously monitor project progress and make necessary adjustments

• Implement quality control measures to ensure adherence to standards

• Regularly assess risks and develop contingency plans

• Encourage collaboration and te...read more