100+ Quality Assurance Interview Questions and Answers

Quality Assurance interview questions covering project, V model, SDLC, STLC, Agile, testing, defects, UAT, Scrum, database testing, SQL.

• Project explanation includes scope, objectives, deliverables, timelines, and team structure.

• V model is a software development model that emphasizes testing at each stage of development.

• SDLC is a process for developing software that includes planning, analysis, design, implementation, testing, and maintenance.

• STLC is a process for testing soft...read more

PDCA cycle is a continuous improvement model. SPC CPK is used for process capability analysis. 4 M change refers to machine shop variables. Scatter diagram is a tool for identifying correlation.

• PDCA cycle stands for Plan-Do-Check-Act and is used for continuous improvement.

• SPC CPK is used to analyze process capability and ensure that a process is capable of producing products within specifications.

• 4 M change refers to changes in machine shop variables - Man, Machine, Material,...read more

Validation is the process of ensuring that a system or process meets predetermined requirements and specifications.

• Validation is used to confirm that a system or process is fit for its intended purpose.

• It involves performing tests, inspections, and evaluations to ensure compliance with standards and regulations.

• Qualifications refer to the skills, knowledge, and experience required for a particular role.

• In the pharmaceutical industry, Good Manufacturing Practice (GMP) is a set...read more

Setup approval is required when implementing new processes or changes. Dock audit and PDI reports are different types of quality assurance checks.

• Setup approval is necessary when introducing new processes or making changes to existing ones.

• Dock audit is a quality assurance check performed on incoming or outgoing shipments to ensure compliance with standards and specifications.

• PDI (Pre-Delivery Inspection) reports are quality assurance checks conducted on finished products bef...read more

CPP for HSG, FBP, Compression, Coating, Blending

• HSG - temperature, pressure, flow rate, and time

• FBP - particle size distribution, moisture content, and bulk density

• Compression - force, speed, and dwell time

• Coating - spray rate, inlet temperature, and atomization pressure

• Blending - mixing time, speed, and order of addition

The call flow in the customer service department was structured and efficient.

• Calls were first routed to an automated system for basic inquiries

• If needed, calls were then transferred to a live agent for more complex issues

• Agents followed a script to ensure consistency in responses

• Calls were logged and tracked for quality assurance purposes

SAP is a software used for managing business operations. It is compulsory for organizations as it helps in streamlining processes and improving efficiency.

• SAP helps in integrating various business functions such as finance, sales, and production.

• It provides real-time data and analytics for informed decision-making.

• SAP automates manual processes, reducing errors and improving productivity.

• It helps in standardizing processes across different departments and locations.

• Organizati...read more

Product quantity refers to the number of units of a product that are available or have been produced.

• Product quantity can be measured in units, boxes, or pallets.

• It is important to maintain accurate records of product quantity to ensure efficient inventory management.

• Product quantity can be affected by factors such as demand, production capacity, and supply chain disruptions.

Cut the cake horizontally into two halves, then cut each half vertically into four equal parts.

• Cut the cake horizontally into two halves

• Make two vertical cuts through each half to get four equal parts

• Repeat the same process for the other half of the cake

Compaction sampling is used in Quality Assurance to assess the density and uniformity of compacted materials.

• Compaction sampling helps ensure that compacted materials meet specified density requirements.

• It allows for the identification of any variations in density within a compacted material.

• Compaction sampling helps in evaluating the effectiveness of compaction equipment and techniques.

• It aids in identifying potential issues such as inadequate compaction or non-uniform densi...read more

Process validation guidelines are a set of principles and procedures used to ensure that a manufacturing process consistently produces products of the desired quality.

• Process validation guidelines help establish and maintain a robust manufacturing process.

• They involve documenting and verifying every step of the process to ensure it meets predetermined specifications.

• Guidelines include defining critical process parameters, conducting process capability studies, and establishin...read more

Deviations are unexpected events or incidents that occur during the manufacturing process. CAPA is a corrective and preventive action taken to address deviations and prevent their recurrence.

• Deviations are deviations from standard operating procedures or specifications.

• CAPA is a process that involves identifying the root cause of the deviation, implementing corrective actions, and preventing recurrence.

• Examples of deviations include equipment malfunction, human error, and env...read more

SQL comments are used to add notes or explanations to SQL code. Manual testing is the process of testing software manually. Regression testing is the process of testing changes to software to ensure that existing functionality still works.

• SQL comments are denoted by two dashes (--) or by enclosing text in /* */

• Manual testing involves manually testing software to ensure it meets requirements

• Regression testing involves testing changes to software to ensure existing functionalit...read more

IPQA stands for In-Process Quality Assurance. It is a process of monitoring and verifying the quality of products during manufacturing.

• IPQA involves checking the quality of products at various stages of production.

• It helps in identifying and correcting any defects or deviations from the standard procedures.

• IPQA ensures that the final product meets the required quality standards.

• Examples of IPQA activities include visual inspection, measurement, and testing of products.

• IPQA is...read more

To prepare Specifications and STP, review MFC and MPR, follow these steps.

• Gather requirements and define specifications for the product or process.

• Create detailed test cases in the Software Test Plan (STP) based on the specifications.

• Review the Master Formula Card (MFC) for manufacturing processes and procedures.

• Review the Master Production Record (MPR) for documenting the production process.

• Ensure that the specifications align with the MFC and MPR for consistency.

• Conduct tho...read more

A set of technical questions related to electronics and technology.

• LDR stands for Light Dependent Resistor, which is a type of sensor that changes its resistance based on the amount of light it receives.

• LED stands for Light Emitting Diode, which is a semiconductor device that emits light when a current is passed through it.

• Radar stands for Radio Detection and Ranging, which is a system that uses radio waves to detect and locate objects.

• A Zener diode is a type of diode that al...read more

Mechanical engineering is a broad field that includes the study of mechanics, materials, and energy, while automobile engineering specifically focuses on the design and production of vehicles.

• Mechanical engineering involves the study of mechanics, materials, and energy, while automobile engineering focuses on the design and production of vehicles.

• Mechanical engineers work on a wide range of systems and machines, while automobile engineers specifically work on vehicles like ca...read more

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

• Quality assurance involves creating processes and procedures to prevent defects in products or services.

• It includes testing and inspecting products to ensure they meet quality standards.

• Quality assurance also involves continuous monitoring and improvement of processes to maintain quality.

• Examples of quality assurance activities include conducting audits, implementi...read more

Java is a programming language used for developing applications. Pharmaceutical technology involves the use of technology in the development and manufacturing of drugs.

• Java is an object-oriented language used for developing desktop, web, and mobile applications.

• Pharmaceutical technology involves the use of technology in drug discovery, development, and manufacturing.

• Java can be used in pharmaceutical technology for developing software applications used in drug discovery and d...read more

I have 11 years of experience in the automotive field.

• During my 11 years of experience in the automotive field, I have gained extensive knowledge in quality assurance processes and procedures.

• I have worked with various automotive manufacturers and suppliers, ensuring that their products meet industry standards and regulations.

• I have also implemented quality control measures to improve product reliability and reduce defects.

• My experience includes conducting audits, analyzing d...read more

Test scenarios for a banking application involve testing various functionalities and features to ensure they work correctly and securely.

• Testing user authentication and authorization processes

• Testing fund transfer functionality, including different types of transfers (e.g. interbank, intrabank)

• Testing bill payment functionality

• Testing account balance display and transaction history accuracy

• Testing security measures such as encryption and secure login

• Testing mobile banking app...read more

CPV stands for Cost Per View. It is a metric used in advertising to measure the cost of each view or interaction with an ad.

• CPV is commonly used in online video advertising campaigns.

• It is calculated by dividing the total cost of the campaign by the number of views or interactions.

• CPV helps advertisers understand the effectiveness and efficiency of their ad campaigns.

• For example, if a campaign costs $100 and receives 1,000 views, the CPV would be $0.10 per view.

Software testing is the process of evaluating a software application to ensure it meets specified requirements and functions correctly.

• Identifying defects or bugs in the software

• Ensuring the software meets quality standards

• Verifying that the software functions as intended

• Improving the overall user experience

• Reducing the risk of software failures in production

• Types of software testing include unit testing, integration testing, system testing, and acceptance testing

I have extensive experience in both quality control and quality assurance.

• I have worked in various industries such as manufacturing, healthcare, and software development.

• I am well-versed in quality standards such as ISO 9001 and Six Sigma.

• I have experience in developing and implementing quality control and assurance processes.

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

• I have also trained and mentored team members on quality control and...read more

5S is a workplace organization method that aims to improve efficiency and productivity.

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

• QC (Quality Control) is focused on identifying defects in products or services, while QA (Quality Assurance) is focused on preventing defects from occurring in the first place

• TPM (Total Productive Maintenance) is a system that aims to maximize equipment effectiveness and minimize downtime through proactive maintenance and empl...read more

Tablets are solid dosage forms containing active pharmaceutical ingredients and excipients. Granulations are agglomerates of powder particles. Chromatography is a technique used for separating and analyzing mixtures.

• Tablets are oral solid dosage forms used for delivering medication.

• Granulations are formed by agglomerating powder particles to improve flow properties and compressibility.

• Chromatography is a technique used to separate and analyze mixtures based on their different...read more

Gears are mechanical components that transmit power and motion between rotating shafts. There are various types of gears.

• Gears are used in machines to transmit power and motion between rotating shafts.

• There are various types of gears such as spur gears, helical gears, bevel gears, worm gears, etc.

• The type of gear used depends on the application and the required speed and torque.

• An engine is a machine that converts fuel into mechanical energy to power a vehicle or machinery.

• Th...read more

Corrective action is taken to address existing issues, while preventive action is taken to prevent future issues.

• Corrective action is taken in response to nonconformities or defects found during quality assurance processes.

• Preventive action is taken to identify and eliminate potential causes of nonconformities before they occur.

• Examples of corrective actions include reworking a product to meet specifications, while examples of preventive actions include implementing regular e...read more

I will first analyze the root cause of the quality problem, create an action plan, implement corrective measures, and monitor the results.

• Analyze the root cause of the quality problem

• Create an action plan to address the issue

• Implement corrective measures to improve quality

• Monitor the results to ensure effectiveness

• Communicate with stakeholders throughout the process

Supplier audit is conducted regularly to ensure quality standards are met and improvements are implemented.

• Regular supplier audits are conducted to assess their performance and identify areas for improvement.

• Improvement actions are implemented based on the findings of the audit.

• The supplier is informed of the audit results and improvement actions.

• Follow-up audits are conducted to ensure the improvements have been implemented and are effective.

• Examples of improvement actions i...read more

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

• GD&T is a language of symbols and standards used to communicate design intent and manufacturing requirements.

• It allows for more precise and consistent communication of tolerances than traditional measurement methods.

• GD&T includes symbols for features like flatness, perpendicularity, and concentricity.

• It is commonly used in industries like aerospace, automotiv...read more

Liquid chromatography is a technique used to separate and analyze mixtures of chemicals based on their interactions with a stationary phase and a mobile phase.

• Choose the appropriate type of liquid chromatography based on the sample being analyzed (e.g. HPLC, UPLC, ion-exchange chromatography).

• Prepare the sample by dissolving it in a suitable solvent and injecting it into the chromatography system.

• The sample interacts with the stationary phase in the column, leading to separat...read more

Problems can be solved by identifying root causes, creating action plans, and implementing solutions.

• Identify the root cause of the problem

• Create an action plan to address the root cause

• Implement the solution and monitor its effectiveness

• Adjust the solution as needed based on feedback

• Document the entire process for future reference

My greatest strength is my attention to detail and thorough understanding of the mortgage life cycle and banking terms.

• Attention to detail helps me catch errors and ensure accuracy in quality assurance processes

• Thorough understanding of mortgage life cycle includes origination, underwriting, closing, and servicing

• Banking terms knowledge includes terms like APR, escrow, and amortization

Agile methodologies are a set of principles and practices that prioritize flexibility, collaboration, and continuous improvement in software development.

• Agile methodologies focus on iterative development, where requirements and solutions evolve through collaboration between self-organizing cross-functional teams.

• They emphasize adaptability to change, with a focus on delivering working software frequently and responding to feedback.

• Common agile methodologies include Scrum, Kan...read more

HACCP 7 principles are a systematic approach to food safety management.

• Conduct a hazard analysis

• Determine critical control points

• Establish critical limits

• Implement monitoring procedures

• Establish corrective actions

• Implement verification procedures

• Establish record-keeping and documentation procedures

The software development lifecycle is a process that outlines the steps involved in developing software.

• Requirements gathering and analysis

• Design and architecture

• Coding and implementation

• Testing and quality assurance

• Deployment and release

• Maintenance and support

Rills are small channels or grooves on the surface of soil caused by erosion.

• Rills are formed due to the flow of water on the surface of soil.

• They are usually small in size and can be seen on hillsides or slopes.

• Rills can lead to soil erosion and loss of fertile topsoil.

• They can be prevented by using techniques like contour plowing and terracing.

• Rills can also be used for irrigation purposes in agriculture.

Exposure audit is a process of identifying potential risks and hazards in a workplace or environment.

• Exposure audit involves assessing the level of exposure to various hazards such as chemicals, noise, and radiation.

• The audit helps in identifying potential risks and hazards in a workplace or environment.

• It also helps in developing strategies to mitigate or eliminate the identified risks.

• For example, an exposure audit in a chemical plant may identify the need for personal prot...read more

Chromatography is a laboratory technique used to separate and analyze mixtures of chemicals.

• It involves passing a mixture through a stationary phase, which separates the components based on their properties.

• The separated components can then be identified and analyzed.

• There are different types of chromatography, including gas chromatography, liquid chromatography, and ion exchange chromatography.

• Chromatography is commonly used in chemistry, biochemistry, and forensic science.

Medical coding involves assigning alphanumeric codes to medical diagnoses, procedures, and services for billing and insurance purposes.

• Medical coding involves assigning codes to diagnoses (ICD-10-CM), procedures (CPT), and services (HCPCS)

• Largest organ in the body is the skin

• Endocrine system includes glands like the pituitary, thyroid, and adrenal glands

• Reproductive system includes organs like the ovaries, uterus, and testes

• Types of body systems include respiratory, cardiovas...read more

String builder is not synchronized, while String buffer is synchronized.

• String builder is faster than String buffer because it is not synchronized.

• String buffer is thread-safe, while String builder is not.

• String builder is preferred for single-threaded applications, while String buffer is preferred for multi-threaded applications.

Quality core tools are a set of techniques and methodologies used in quality assurance to improve processes and products.

• Quality core tools include tools like FMEA (Failure Mode and Effects Analysis), Control Plans, SPC (Statistical Process Control), and PPAP (Production Part Approval Process).

• These tools help identify and prevent potential quality issues, monitor processes for variations, and ensure consistency in product quality.

• They are essential for achieving and maintain...read more

The number of test cases for a login page depends on various factors such as functionality, user roles, error handling, and security measures.

• Consider positive test cases for successful login with valid credentials

• Include negative test cases for invalid credentials, blank fields, and incorrect password

• Test different user roles and permissions

• Verify error messages and handling for various scenarios

• Test security measures like account lockout after multiple failed attempts

Audit trail is a record of all the activities performed on a system or application.

• It helps in tracking changes made to data and who made them.

• It ensures accountability and transparency.

• It is useful in detecting and investigating security breaches.

• Examples include logs of user activity, system events, and database changes.

Tablet is a solid dosage form of medication. HPLC is a technique used for separating and analyzing compounds. Titration is a method used to determine the concentration of a substance in a solution.

• Tablet is a pharmaceutical dosage form that contains a mixture of active substances and excipients compressed into a solid form.

• HPLC (High Performance Liquid Chromatography) is a technique used in analytical chemistry to separate, identify, and quantify compounds in a mixture.

• Titrat...read more

We use a Zeiss Contura G2 CMM machine for precision measurements.

• Zeiss Contura G2 is a popular CMM machine known for its accuracy and reliability

• It is equipped with advanced software for data analysis and reporting

• The machine has a measuring range of X=700mm, Y=1000mm, Z=600mm

• It is used for inspecting complex parts in industries like automotive, aerospace, and medical devices