200+ 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

To ensure best quality products in marketing, a process needs to be established and followed consistently.

• Establish clear quality standards and guidelines

• Implement quality control measures throughout the production process

• Regularly test and evaluate products to ensure they meet quality standards

• Continuously improve processes and products based on feedback and data

• Train and educate employees on quality standards and processes

• Collaborate with suppliers and partners to ensure qu...read more

A test pass is a collection of test runs, while a test run is a single execution of a test case.

• A test pass includes multiple test runs, which are iterations of executing test cases.

• A test run is a single instance of executing a test case to verify its functionality.

• Test passes are used to group and organize test runs for a specific testing phase or cycle.

• Test runs are typically recorded and documented to track the results of individual test case executions.

Error, bug, and issue are terms used in software testing to describe different types of problems.

• Error: A mistake made by a human that results in a fault in the software.

• Bug: A fault in the software that causes it to behave incorrectly or unexpectedly.

• Issue: A problem reported by a user or identified during testing that needs to be addressed.

• Example: Typing 'pritn' instead of 'print' in the code is an error. If this mistake causes the program to crash, it is a bug. If a user ...read more

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

Choosing between staying or switching companies after a milestone depends on career goals, growth opportunities, and personal values.

• Evaluate career growth: If the current company offers advancement opportunities, it may be worth staying.

• Consider company culture: A positive work environment can enhance job satisfaction.

• Financial incentives: If switching companies offers significantly higher pay or benefits, it might be a better choice.

• Long-term goals: Align the decision with ...read more

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

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.

Regression testing ensures that new code changes do not adversely affect existing functionality, while sanity testing quickly checks if the software is ready for further testing.

• Regression testing is performed after code changes to ensure that existing functionality is not affected.

• Sanity testing is a quick test to check if the software is ready for further testing.

• Regression testing is comprehensive and covers all areas of the application.

• Sanity testing is a subset of regres...read more

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

Organic chemistry deals with compounds containing carbon, while inorganic chemistry deals with compounds without carbon.

• Organic chemistry focuses on carbon-based compounds, including hydrocarbons, carbohydrates, proteins, and nucleic acids.

• Inorganic chemistry deals with compounds that do not contain carbon, such as salts, metals, minerals, and gases.

• Organic chemistry is primarily concerned with the study of living organisms and their processes, while inorganic chemistry is mo...read more

TIG welding uses a non-consumable tungsten electrode and inert gas, while MIG welding uses a consumable wire electrode and inert gas.

• TIG welding is more precise and produces higher quality welds compared to MIG welding.

• MIG welding is faster and more suitable for thicker materials than TIG welding.

• TIG welding requires more skill and control from the operator than MIG welding.

• TIG welding is commonly used for welding thin materials like stainless steel, aluminum, and copper, whi...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

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

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

Faced a critical bug in production; coordinated with teams to resolve it swiftly and improve future testing protocols.

• Identified a critical bug affecting user data during a routine check.

• Collaborated with developers to understand the root cause and urgency.

• Implemented a temporary fix while working on a permanent solution.

• Enhanced testing protocols to prevent similar issues in the future.

• Conducted a post-mortem analysis to learn from the incident.

I admire your commitment to quality and innovation, and my skills align perfectly with your QA needs.

• I have extensive experience in QA methodologies, having worked on projects that improved product reliability by 30%.

• Your company's focus on continuous improvement resonates with my passion for enhancing processes and outcomes.

• I am proficient in automated testing tools, which I used to reduce testing time by 40% in my previous role.

• I value teamwork and collaboration, as demonst...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

Software development life cycle is a process used to design, develop, and test software applications.

• It consists of phases such as planning, analysis, design, implementation, testing, and maintenance.

• Each phase has specific goals and deliverables to ensure the quality and success of the software.

• Examples of SDLC models include Waterfall, Agile, and DevOps.

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

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