30+ Quality Assurance Engineer Trainee Interview Questions and Answers

The least count of measuring instruments like slip gauge, micrometer, and vernier, technical terms definitions, and GD&T knowledge are important for a Quality Assurance Engineer Trainee role.

• The least count of a measuring instrument is the smallest measurement that can be read or measured using that instrument.

• Slip gauge typically has a least count of 0.01 mm, micrometer has a least count of 0.01 mm, and vernier caliper has a least count of 0.02 mm.

• GD&T (Geometric Dimensionin...read more

Standard use in steel industry includes carbon percentage in different alloys, heat treatment process, forging, and steel melting process.

• Carbon percentage varies in different steel alloys, affecting the strength and hardness of the material.

• Heat treatment process involves heating and cooling steel to alter its physical and mechanical properties.

• Forging is a manufacturing process where metal is shaped using compressive forces.

• Steel melting process involves melting raw materia...read more

First angle and third angle positions are two different methods of representing a 3D object in 2D engineering drawings.

• First angle projection is commonly used in Europe and Asia, where the object is imagined to be in the first quadrant of a Cartesian coordinate system.

• Third angle projection is commonly used in North America, where the object is imagined to be in the third quadrant of a Cartesian coordinate system.

• In first angle projection, the top view is below the front view...read more

ESTM stands for Engineering Standard Test Method, used to ensure quality and consistency in engineering processes.

• ESTM standard is used to establish consistent testing methods in engineering.

• It helps ensure quality and reliability of products and processes.

• Examples of ESTM standards include ASTM International and ISO standards.

• Engineers use ESTM to validate designs, materials, and manufacturing processes.

5S, Kaizen, and 7 QC tools are quality management methodologies used to improve processes and reduce waste.

• 5S is a workplace organization method that involves sorting, simplifying, sweeping, standardizing, and sustaining.

• Kaizen is a continuous improvement approach that involves making small, incremental changes to processes over time.

• 7 QC tools are a set of problem-solving techniques used to identify and address quality issues, including Pareto charts, fishbone diagrams, and ...read more

Thermodynamic processes involve the study of energy transfer and transformation. Laws of thermodynamics govern these processes, while gears are mechanical devices used to transmit motion.

• Thermodynamic processes involve the transfer of heat and work between a system and its surroundings.

• The laws of thermodynamics include the zeroth law (thermal equilibrium), the first law (conservation of energy), the second law (entropy always increases), and the third law (approaching absolu...read more

Decarburization (decarb) is a process in which carbon is removed from the surface of stainless steel during the Argon Oxygen Decarburization (AoD) process.

• Decarburization occurs when carbon in the stainless steel reacts with oxygen to form carbon monoxide gas, which then escapes from the steel.

• This process can lead to a decrease in carbon content at the surface of the steel, affecting its mechanical properties.

• Decarburization can be controlled by adjusting the oxygen content ...read more

Modulation techniques are methods used to encode digital information onto an analog carrier signal.

• Amplitude Modulation (AM)

• Frequency Modulation (FM)

• Phase Modulation (PM)

• Quadrature Amplitude Modulation (QAM)

• Pulse Amplitude Modulation (PAM)

Fits! is a testing framework for Java applications. Bs4 and Bs6 are emission standards for vehicles.

• Fits! is a tool used for automated testing of Java applications.

• It helps in verifying the functionality and behavior of the application.

• Bs4 and Bs6 are emission standards set for vehicles to regulate the pollutants emitted by their engines.

• Bs4 stands for Bharat Stage 4 and Bs6 stands for Bharat Stage 6.

• Bs6 is the latest and more stringent emission standard compared to Bs4.

Tolerance refers to the acceptable range of variation in a product's dimensions or characteristics.

• Types of tolerance include bilateral, unilateral, limit, and fit tolerance.

• Bilateral tolerance allows for variation in both directions from the nominal dimension.

• Unilateral tolerance allows for variation in only one direction from the nominal dimension.

• Limit tolerance sets specific upper and lower limits for a dimension.

• Fit tolerance determines the acceptable amount of interfere...read more

Stress is a force applied to an object that causes it to deform or strain. Measuring devices for stress include strain gauges, load cells, and pressure sensors.

• Stress is a physical quantity that measures the internal forces within a material.

• It is caused by external forces applied to an object, resulting in deformation or strain.

• Types of measuring devices for stress include strain gauges, load cells, and pressure sensors.

• Strain gauges measure the strain or deformation of an o...read more

3D scanning of exhaust manifold of casting and core is a process to create a digital model of the part for analysis and optimization.

• 3D scanning involves using a laser or structured light to capture the geometry of the part

• The resulting point cloud data can be used to create a CAD model for further analysis and optimization

• Scanning can be done on both the casting and core to ensure accuracy of the final product

• This process can help identify any defects or areas for improvemen...read more

During a hydro test, I will check for leaks, pressure levels, safety measures, and proper equipment functioning.

• Check for leaks in the system

• Monitor pressure levels to ensure they meet specifications

• Verify safety measures are in place and followed

• Ensure all equipment is functioning properly

I would prefer to write a code for sorting an array of strings in alphabetical order.

• Use a sorting algorithm like bubble sort or merge sort

• Compare each pair of strings and swap them if they are in the wrong order

• Repeat the process until the array is sorted

A 0.01 slip gauge is a precision measurement tool used to measure small gaps or clearances.

• A 0.01 slip gauge is a thin, flat piece of metal with a precise thickness of 0.01mm.

• It is used to check the clearance or gap between two surfaces in engineering and manufacturing.

• The slip gauge is inserted into the gap and the measurement is taken by observing how much of the gauge can fit into the space.

• It is important to handle slip gauges carefully to avoid damaging their precision s...read more

Gear types include spur, helical, bevel, worm, rack and pinion. Gear views include front view, top view, and side view.

• Types of gears: spur, helical, bevel, worm, rack and pinion

• Gear views: front view, top view, side view

• Examples: Spur gear - used in parallel shaft arrangements, Helical gear - used for high-speed applications

A polar satellite is a type of satellite that orbits the Earth in a north-south direction, passing over both poles.

• Orbits the Earth in a north-south direction

• Passes over both poles

• Used for Earth observation, weather forecasting, and environmental monitoring

MSL components are used in electronic devices to protect against electrostatic discharge (ESD) and electromagnetic interference (EMI).

• Metal oxide varistors (MOVs)

• Transient voltage suppressors (TVSs)

• Gas discharge tubes (GDTs)

• EMI filters

• Capacitors

• Inductors

Instruments and gauges are tools used to measure, monitor, or control various parameters in a system or process.

• Instruments are devices used to measure, monitor, or control variables such as temperature, pressure, flow rate, etc.

• Gauges are specific types of instruments used to measure or display a particular parameter, such as a pressure gauge or a temperature gauge.

• Instruments and gauges are essential for ensuring quality, accuracy, and efficiency in various industries like ...read more

The least of different measuring instruments refers to the instrument with the smallest range or precision.

• The least measuring instrument may have a smaller range compared to others.

• It may have lower precision or accuracy.

• Examples include a ruler with millimeter markings compared to a micrometer with micrometer markings.

List is mutable, tuple is immutable in Python.

• List can be modified after creation, tuple cannot

• List uses square brackets [], tuple uses parentheses ()

• List is used for collections of items that may change, tuple for fixed collections

• Example: list - [1, 2, 3], tuple - (1, 2, 3)

Quality is the degree of excellence of a product or service as perceived by the customer.

• Quality is meeting or exceeding customer expectations

• It involves consistency, reliability, and performance

• Quality is achieved through continuous improvement and adherence to standards

• Examples: defect-free products, timely delivery, excellent customer service

Various gauges are used for inspection purposes in quality assurance.

• Calipers for measuring dimensions

• Micrometers for precise measurements

• Gauge blocks for calibration

• Thread gauges for checking screw threads

• Pressure gauges for measuring pressure

• Height gauges for measuring heights

• Surface roughness gauges for checking surface finish

Calipers are commonly used for inspection in manufacturing processes.

• Calipers are used to measure the distance between two opposite sides of an object.

• There are different types of calipers such as Vernier calipers, dial calipers, and digital calipers.

• Calipers are commonly used in industries like automotive, aerospace, and electronics for quality control.

• They are used to ensure that products meet specified dimensions and tolerances.

I am a recent graduate with a degree in Computer Science, passionate about software testing and quality assurance.

• Recent graduate with a degree in Computer Science

• Passionate about software testing and quality assurance

• Strong problem-solving skills

• Experience with testing tools like Selenium and Jira

Embedded system is a computer system designed to perform specific tasks with real-time computing constraints.

• Embedded systems are found in various applications such as automobiles, medical equipment, home appliances, and industrial machines.

• They are designed to perform specific tasks with real-time computing constraints.

• They typically have limited resources such as memory, processing power, and energy consumption.

• They often use specialized operating systems and programming la...read more

The second law of thermodynamics states that the total entropy of an isolated system can never decrease over time.

• Entropy always increases in a closed system

• Heat flows from hot to cold objects

• Efficiency of energy conversion processes is limited by the second law

• Examples: a cup of hot coffee cooling down, a car engine losing energy as heat

A function to reverse a given string and return the reversed string.

• Create an empty string to store the reversed string

• Iterate through the original string from the end to the beginning and append each character to the new string

• Return the reversed string

Strength of material refers to the ability of a material to withstand applied forces without failing.

• Strength of material is typically measured in terms of tensile strength, yield strength, and ultimate strength.

• Different materials have different strengths - for example, steel is stronger than aluminum.

• Factors affecting strength include material composition, manufacturing process, and environmental conditions.

• Strength of material is important in engineering design to ensure s...read more