300+ Senior Quality Engineer Interview Questions and Answers

The least count of vernier caliper, micrometer, and height gauge varies based on their precision.

• Least count of vernier caliper ranges from 0.02 mm to 0.05 mm

• Least count of micrometer ranges from 0.001 mm to 0.01 mm

• Least count of height gauge ranges from 0.02 mm to 0.05 mm

• Least count is the smallest measurement that can be read on the instrument

Control plan is a documented procedure to ensure consistent quality of a product or service.

• Identify critical process steps and potential failure modes

• Develop controls to prevent or detect failures

• Assign responsibility for each control

• Establish monitoring and response plans

• Review and update the control plan regularly

Interview questions for Senior Quality Engineer position

• findElements returns a list of web elements while findElement returns a single web element

• OOPS concepts include inheritance, polymorphism, encapsulation, and abstraction

• TestNG framework allows for easy test case management and reporting

• Reports in TestNG can be generated using the TestNG XML file or by using listeners

• Defect life cycle includes identification, logging, prioritization, fixing, and verification

• Priority and s...read more

PPAP stands for Production Part Approval Process. It is a standardized process used in the automotive industry to ensure that suppliers meet quality requirements.

• PPAP is a set of guidelines and requirements that suppliers must follow to demonstrate their ability to consistently produce parts that meet customer specifications.

• It involves submitting documentation and samples to the customer for approval before production begins.

• The documentation includes items such as control p...read more

QA/QC stands for Quality Assurance/Quality Control. It involves testing and inspection of materials and products to ensure they meet quality standards.

• QA/QC is a process of ensuring quality in products and materials

• It involves testing and inspection of materials and products

• Concrete, cement, aggregates, TMT bars, and soil are some of the materials that require QA/QC

• Knowledge of chemical and physical properties of these materials is necessary

• Mix design of concrete as per IS Co...read more

Accuracy refers to how close a measured value is to the true value, while precision refers to how close multiple measurements are to each other.

• Accuracy is the degree of closeness between a measured value and the true value.

• Precision is the degree of closeness between multiple measurements of the same quantity.

• Accuracy is related to systematic errors, while precision is related to random errors.

• Accuracy can be affected by bias, while precision can be affected by variability.

• A...read more

Placing bottom and top steel in staircase involves proper measurement and positioning. Checking reinforcement and shuttering in slab & column requires attention to detail. Density of raw material can be determined through testing. Testing of steel, soil, and raw material is crucial for quality assurance. Concrete design mix should be carefully calculated.

• Measure and position bottom and top steel in staircase accurately

• Pay attention to detail when checking reinforcement and sh...read more

FMEA is a systematic method for identifying and prioritizing potential failure modes in a process or product.

• FMEA involves identifying potential failure modes, their causes, and the effects of these failures.

• It assigns a severity, occurrence, and detection rating to each failure mode to prioritize them for mitigation.

• FMEA helps in proactively addressing potential issues to improve quality and reliability.

• Example: In automotive manufacturing, FMEA can be used to identify poten...read more

Snagging is the process of identifying and rectifying defects or issues in a construction project before completion.

• Inspecting the construction site for any defects or issues

• Checking for quality of materials used

• Ensuring compliance with building codes and regulations

• Creating a snagging report detailing all identified issues

• Coordinating with contractors to address and rectify the snagged items

Yes, I have experience in ISO standards, 5S, and Kaizen.

• I have worked with ISO 9001 and ISO 13485 standards in my previous roles.

• I have implemented 5S methodology in a manufacturing plant, resulting in improved efficiency and reduced waste.

• I have led Kaizen events to identify and eliminate process inefficiencies.

• Overall, I have 5 years of experience in these areas.

Use straight edge and feeler gauge to check flatness of the table.

• Use a straight edge to check for any gaps between the table surface and the straight edge.

• Use a feeler gauge to measure any deviations from flatness at various points on the table.

• Repeat the process in multiple directions to ensure overall flatness of the table.

• Document the measurements and compare them against the acceptable flatness tolerance for the table.

To verify the accuracy of CMM readings, I would use calibration standards, conduct repeatability tests, and compare results with known measurements.

• Use calibration standards to verify the accuracy of CMM readings.

• Conduct repeatability tests to ensure consistent results.

• Compare CMM measurements with known measurements to validate accuracy.

Yes, it is possible to check the flatness of a big round conference table.

• Use a straight edge or level to check for any deviations from flatness

• Measure the distance between the table surface and the straight edge at multiple points

• Look for any gaps or unevenness in the measurements

• Consider using a laser level for more accurate results

I am using the Datum Reference Frame alignment method to align the job on CMM.

• Datum Reference Frame alignment method is commonly used in CMM to establish a coordinate system based on specific datums on the part.

• This method involves selecting primary, secondary, and tertiary datums to align the part in the correct orientation.

• The alignment process ensures accurate measurement and inspection of the part's features.

• Examples of datums include flat surfaces, holes, or edges that a...read more

Using precision measuring tools like calipers, levels, and squares to check parallelity & perpendicularity of conference table.

• Use a precision level to check if the table surface is parallel to the ground

• Measure the distance between opposite corners to ensure the table is square

• Use a square tool to check the right angles of the table

• Calipers can be used to measure the thickness of the table legs for uniformity

A requirement is a need or expectation from a stakeholder. A requirement traceability matrix is a tool to track requirements throughout the project lifecycle.

• Requirement is a statement that specifies what a product or service should do or how it should perform.

• Requirement Traceability Matrix (RTM) is a document that links requirements to their origin and traces them throughout the project lifecycle.

• RTM helps to ensure that all requirements are met and that changes to requirem...read more

Honeycombing in concrete can weaken structures; identifying and controlling it is crucial for safety and durability.

• Visual Inspection: Look for voids or air pockets on the surface of the concrete.

• Non-Destructive Testing: Use ultrasonic pulse velocity tests to detect internal flaws.

• Control Measures: Ensure proper mixing and placement techniques to minimize honeycombing.

• Repair Techniques: Use epoxy injections or patching compounds to fill voids.

• Consequences: If untreated, honey...read more

The water-cement ratio is crucial for concrete's strength and durability, influencing its performance and longevity.

• A lower water-cement ratio (e.g., 0.4) increases strength and reduces permeability.

• A higher water-cement ratio (e.g., 0.6) can lead to weaker concrete and increased susceptibility to cracking.

• The ideal water-cement ratio for structural concrete is typically between 0.4 and 0.5.

• Standards like ASTM C94 specify guidelines for mixing concrete, including water-cement...read more

Yes, surface finish can have further types or subtypes such as roughness, waviness, and lay.

• Surface roughness refers to the finely spaced irregularities on the surface of an object.

• Surface waviness refers to the more widely spaced deviations of the surface from a straight line.

• Surface lay refers to the direction of the predominant surface pattern.

Surface finish refers to the texture or smoothness of a surface after it has been machined or treated.

• Surface finish is measured in units such as Ra (roughness average) or Rz (average maximum profile height).

• A smooth surface finish is important for reducing friction, improving aesthetics, and ensuring proper functionality.

• Common methods for achieving desired surface finishes include grinding, polishing, and coating.

• Surface finish can impact the performance and longevity of a ...read more

I have experience in various types of testing including functional, regression, performance, and security testing.

• Functional testing to ensure the product meets the specified requirements

• Regression testing to ensure new changes do not affect existing functionality

• Performance testing to ensure the product can handle expected load and response times

• Security testing to identify and mitigate potential vulnerabilities

• Testcases in helmet for impact resistance, durability, and comfo...read more

API testing involves validating the functionality, reliability, and performance of APIs using various status codes.

• Use tools like Postman or SoapUI for manual testing and automation frameworks like RestAssured for automated tests.

• Status code 200 indicates a successful request, e.g., retrieving user data.

• Status code 201 means a resource was successfully created, e.g., adding a new user.

• Status code 404 indicates that the requested resource was not found, e.g., accessing a non-e...read more

Ensuring concrete quality involves monitoring during transit and conducting immediate tests on-site before pouring.

• Check the temperature of the concrete upon arrival to ensure it is within specified limits (e.g., 50°F to 90°F).

• Perform a slump test to assess workability; a slump of 4 to 5 inches is typically acceptable for most applications.

• Verify the mix design against project specifications to ensure the correct proportions of materials.

• Conduct a visual inspection for consis...read more

Concrete cracks can be structural or non-structural, each with distinct causes and implications for integrity.

• Plastic Shrinkage Cracks: Occur in fresh concrete due to rapid evaporation of water.

• Settlement Cracks: Result from soil settlement beneath the foundation, often seen in new constructions.

• Thermal Cracks: Caused by temperature changes, typically in large slabs or mass concrete.

• Structural Cracks: Indicate potential failure, often due to overload, design flaws, or poor co...read more

I have experience using a Zeiss CMM machine with Calypso software.

• Used Zeiss CMM machine for precision measurements

• Proficient in operating Calypso software for data analysis

• Performed dimensional inspections using CMM technology

Key considerations for Pp and Ppk include data distribution, sample size, and specification limits.

• Understand the difference: Pp measures potential capability, while Ppk measures actual performance considering process mean.

• Ensure data is normally distributed; if not, consider transformations or non-parametric methods.

• Sample size matters: larger samples provide more reliable estimates of process performance.

• Specification limits should be clearly defined; Pp and Ppk calculation...read more

Some quality standards include ISO 9001, Six Sigma, Lean Manufacturing, and Total Quality Management.

• ISO 9001: a set of international standards for quality management systems

• Six Sigma: a methodology aimed at improving processes by reducing defects

• Lean Manufacturing: focuses on minimizing waste and maximizing value

• Total Quality Management: an approach that involves all employees in continuous improvement