20+ Quality Assurance Trainee Interview Questions and Answers

Object oriented programming is a programming paradigm that uses objects to represent and manipulate data.

• Object oriented programming focuses on creating reusable code by organizing data and behavior into objects.

• Objects have attributes (data) and methods (behavior) that can be accessed and modified through the object's interface.

• Inheritance allows objects to inherit attributes and methods from parent objects, promoting code reuse and reducing redundancy.

• Polymorphism allows ob...read more

STLC is Software Testing Life Cycle, SDLC is Software Development Life Cycle, Bug Life Cycle is the process of handling bugs, and Types of Testing are various methods of testing software.

• STLC is a process of testing software from planning to deployment.

• SDLC is a process of developing software from requirement gathering to maintenance.

• Bug Life Cycle includes stages like New, Assigned, Open, Fixed, Verified, and Closed.

• Types of Testing include Functional, Non-Functional, Regres...read more

Static and final are both keywords in Java with different meanings.

• Static is used to define a class-level variable or method that can be accessed without creating an instance of the class.

• Final is used to define a constant value that cannot be changed once assigned.

• Static can also be used to define a block of code that is executed only once when the class is loaded.

• Final can also be used to define a class or method that cannot be overridden by a subclass.

Gas chromatography is a technique used to separate and analyze compounds in a mixture based on their different volatilities.

• Gas chromatography involves a stationary phase (usually a coated capillary column) and a mobile phase (inert gas like helium).

• The sample is injected into the column and carried through by the mobile phase. Compounds separate based on their interactions with the stationary phase.

• The separated compounds are detected by a detector at the end of the column, ...read more

QA stands for Quality Assurance. It is a process of ensuring that a product or service meets the specified requirements and standards.

• QA involves testing and evaluating the functionality, performance, and usability of software or systems.

• It includes creating test plans, test cases, and executing them to identify defects or issues.

• QA also involves analyzing and reporting test results, collaborating with developers to resolve issues, and ensuring overall product quality.

• Example...read more

Types of titration include acid-base titration, redox titration, complexometric titration, and precipitation titration.

• Acid-base titration involves the neutralization of an acid with a base or vice versa.

• Redox titration involves a redox reaction between the analyte and titrant.

• Complexometric titration involves the formation of a complex between the analyte and titrant.

• Precipitation titration involves the formation of a precipitate between the analyte and titrant.

Molarity is a measure of the concentration of a solute in a solution, expressed as the number of moles of solute per liter of solution.

• Molarity is calculated by dividing the number of moles of solute by the volume of the solution in liters.

• For example, a solution containing 0.5 moles of NaCl in 1 liter of water has a molarity of 0.5 M.

• Molarity is commonly used in chemistry to quantify the amount of a substance in a given volume of solution.

Multiple inheritance can be achieved through interfaces or mixins.

• Interfaces allow a class to implement multiple interfaces, each with its own set of methods and properties.

• Mixins are classes that contain a set of methods and properties that can be added to other classes.

• Example of interfaces: class MyClass implements Interface1, Interface2 {}

• Example of mixins: class MyClass extends Mixin1(Mixin2(MyBaseClass)) {}

cGMP is current Good Manufacturing Practices, a more stringent and updated version of GMP.

• cGMP stands for current Good Manufacturing Practices, which are updated and more stringent than traditional GMP

• cGMP includes additional requirements for documentation, validation, and quality control

• cGMP is often required in industries such as pharmaceuticals and food production

• GMP is the basic set of guidelines for manufacturing processes, while cGMP is a more advanced and modernized ve...read more

DELETE and TRUNCATE are SQL commands used to remove data from a table.

• DELETE removes specific rows from a table based on a condition

• TRUNCATE removes all rows from a table

• DELETE is slower than TRUNCATE

• TRUNCATE resets the identity of the table

• DELETE can be rolled back, but TRUNCATE cannot

Collection framework is a set of classes and interfaces that provide a standard way to store and manipulate groups of objects.

• It provides interfaces like List, Set, Queue, etc. to store and manipulate collections of objects.

• It also provides classes like ArrayList, HashSet, PriorityQueue, etc. that implement these interfaces.

• It simplifies the process of storing, searching, sorting, and manipulating collections of objects.

• It is a part of the Java API and is widely used in Java ...read more

The pharma industry can be categorized into various types based on their focus and specialization.

• Pharmaceutical manufacturers: Companies that research, develop, and produce drugs.

• Contract research organizations (CROs): Organizations that conduct clinical trials and research on behalf of pharmaceutical companies.

• Generic drug manufacturers: Companies that produce and sell generic versions of branded drugs.

• Biotechnology companies: Companies that use biological systems and organ...read more

The least count of a vernier caliper is 0.02 mm and the least count of a micrometer is 0.01 mm.

• Vernier caliper least count: 0.02 mm

• Micrometer least count: 0.01 mm

A foreign key is a column or set of columns in a database table that refers to the primary key of another table.

• It is used to establish a relationship between two tables in a database.

• It ensures referential integrity by preventing invalid data from being inserted into the table.

• It can be used to join tables together to retrieve data from multiple tables.

• For example, a customer table may have a foreign key that refers to the primary key of an orders table.

An engine is a machine designed to convert energy into mechanical motion.

• Engines can be found in vehicles, machinery, and power plants.

• There are different types of engines such as internal combustion engines, steam engines, and electric motors.

• Engines require fuel or energy input to operate and produce output in the form of mechanical work.

• Regular maintenance and monitoring are essential to ensure engines operate efficiently and safely.

Polymorphism refers to the ability of an object to take on multiple forms.

• Compile-time polymorphism: Function overloading and operator overloading

• Run-time polymorphism: Virtual functions and function overriding

• Ad-hoc polymorphism: Function templates and operator overloading

• Parametric polymorphism: Templates in C++ and generics in Java

Pharma industries refer to companies involved in the research, development, production, and marketing of pharmaceutical drugs.

• Pharma industries focus on developing medications to treat various diseases and improve health outcomes

• These companies adhere to strict regulations and quality standards to ensure the safety and efficacy of their products

• Examples of pharma industries include Pfizer, Novartis, and Johnson & Johnson

Yes

• Yes, I have a minimum of 3 years of experience in Quality Assurance.

• During my previous role as a Quality Assurance Analyst at XYZ Company, I successfully implemented and executed quality control processes to ensure product reliability.

• I have a strong understanding of testing methodologies, including manual and automated testing, and have experience with tools such as Selenium and JIRA.

We manufacture high-quality electronic devices for various industries.

• Specialize in producing electronic components for automotive sector

• Utilize cutting-edge technology for precision manufacturing

• Offer customization options for clients based on their specific needs

A valve is a device that regulates, directs, or controls the flow of a fluid (such as gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways.

• Valves are commonly used in plumbing systems to control the flow of water or gas.

• There are different types of valves such as ball valves, gate valves, globe valves, and butterfly valves.

• Valves can be manual or automatic, depending on the application.

• Valves are essential components...read more