200+ Quality Engineer Interview Questions and Answers for Freshers

Key concepts of manual testing include test case creation, execution, defect reporting, and regression testing.

• Test case creation involves designing test cases based on requirements and specifications.

• Test case execution is the process of running the test cases and comparing actual results with expected results.

• Defect reporting involves documenting and reporting any issues found during testing.

• Regression testing is the practice of retesting the software after changes to ensur...read more

Key concepts related to automation include test automation, continuous integration, continuous deployment, and robotic process automation.

• Test automation involves using software tools to control the execution of tests and compare actual outcomes with expected outcomes.

• Continuous integration is the practice of frequently integrating code changes into a shared repository, which helps identify and fix integration issues early.

• Continuous deployment is the automated process of dep...read more

Visual inspection is a method of evaluating the quality of a product or process by visually examining it.

• Visual inspection involves using the human eye to detect defects, flaws, or deviations from the desired standards.

• It is a non-destructive testing method that can be performed at various stages of production or during final inspection.

• Visual inspection can be aided by tools such as magnifying glasses, microscopes, or cameras.

• Examples of visual inspection include checking fo...read more

Quality is the degree to which a product or service meets or exceeds customer expectations.

• Quality is about meeting or exceeding customer expectations.

• It is the degree to which a product or service fulfills its intended purpose.

• Quality is achieved through consistent and reliable processes.

• It involves continuous improvement and prevention of defects.

• Quality can be measured through various metrics such as customer satisfaction, defect rates, and process capability.

• Examples of q...read more

A quality inspector is responsible for ensuring that products or services meet specified quality standards.

• Quality inspectors perform inspections and tests on products or services to identify any defects or deviations from quality standards.

• They use various tools and techniques such as visual inspections, measurements, and testing equipment to assess quality.

• Quality inspectors may also review documentation and records to ensure compliance with quality procedures and regulatio...read more

8D and CAPA are problem-solving methodologies used in quality management.

• 8D stands for 8 Disciplines and is used to identify, correct and prevent problems

• CAPA stands for Corrective and Preventive Action and is used to identify and eliminate the root cause of a problem

• Both methodologies involve a structured approach to problem-solving and require documentation of the process and results

• They are commonly used in industries such as manufacturing, automotive, and healthcare

The vernier caliper least count is the smallest measurement that can be read on the caliper scale.

• The least count of a vernier caliper is determined by the number of divisions on the main scale and the vernier scale.

• It is calculated by dividing the smallest division on the main scale by the number of divisions on the vernier scale.

• For example, if the smallest division on the main scale is 0.1 mm and the vernier scale has 10 divisions, the least count would be 0.01 mm.

• The leas...read more

Defect control can be achieved through various methods such as statistical process control, root cause analysis, and continuous improvement.

• Implement statistical process control to monitor and control the production process

• Conduct root cause analysis to identify the underlying causes of defects and implement corrective actions

• Implement continuous improvement initiatives to prevent defects from occurring in the first place

• Train employees on quality control techniques and encou...read more

Maintaining productivity involves setting goals, prioritizing tasks, managing time effectively, and continuously improving processes.

• Set clear goals and prioritize tasks

• Create a schedule and stick to it

• Eliminate distractions and focus on one task at a time

• Regularly evaluate and improve processes

• Take breaks and practice self-care to avoid burnout

Quality refers to the degree of excellence or superiority of a product or service.

• Quality is a measure of how well a product or service meets customer expectations and requirements.

• It involves ensuring that the product or service is free from defects or errors.

• Quality also includes aspects such as reliability, durability, performance, and customer satisfaction.

• Quality can be achieved through various processes like quality control, quality assurance, and continuous improvement...read more

To measure with vernier calipers, align the jaws with the object and read the measurement on the scale.

• Ensure the caliper is clean and properly calibrated

• Close the jaws and zero the scale

• Align the jaws with the object to be measured

• Read the measurement on the scale

• Take multiple measurements and average for accuracy

The welding symbol on the drawing indicates the type of weld and its dimensions.

• The welding symbol consists of various elements such as the reference line, arrow, and other symbols.

• It provides information about the type of weld, weld size, and other specifications.

• Examples of welding symbols include fillet weld symbol, groove weld symbol, and plug weld symbol.

The formula to calculate weight is mass times gravity.

• Weight is the force exerted on an object due to gravity.

• The standard unit of weight is Newtons (N).

• The formula is W = m x g, where W is weight, m is mass, and g is acceleration due to gravity.

• For example, the weight of a 10 kg object on Earth (g = 9.81 m/s^2) is W = 10 kg x 9.81 m/s^2 = 98.1 N.

Mix ratios for grade of concrete

• Mix ratios for concrete vary depending on the grade of concrete required

• For example, for M20 grade concrete, the mix ratio would be 1:1.5:3 (cement:sand:aggregate)

• Higher grade concrete requires a higher proportion of cement in the mix

• The mix ratio should be carefully calculated to ensure the desired strength and durability of the concrete

Defects in rubber molding can include air bubbles, flash, incomplete cure, and warping.

• Air bubbles: trapped air pockets in the molded rubber

• Flash: excess rubber material extending from the mold

• Incomplete cure: rubber not fully cured, leading to soft spots or weakness

• Warping: distortion or bending of the molded rubber

Black and GI wire are tested for quality assurance purposes.

• Black and GI wire are tested to ensure they meet quality standards and specifications.

• Tests may include checking for strength, durability, and resistance to corrosion.

• Various testing methods such as tensile strength testing, bend testing, and coating thickness measurement may be used.

• For example, the black wire may be tested for its electrical conductivity and insulation properties.

• The GI wire may be tested for its z...read more

The number of work and welding processes depend on the specific project requirements and the type of welding being used.

• The number of work and welding processes can vary greatly depending on the project requirements.

• Different types of welding may require different numbers of processes.

• Factors such as the type of material being welded, the thickness of the material, and the desired strength of the weld can all impact the number of processes required.

• For example, a project that...read more

A micrometer is used to measure small distances with high precision.

• Clean the measuring surfaces before use

• Close the anvil and spindle gently on the object being measured

• Read the measurement from the thimble and sleeve scales

• Use the ratchet stop to ensure consistent pressure

• Convert the measurement to the desired unit of measurement

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

• Ohm's law is a fundamental law in electrical engineering

• It states that the current flowing through a conductor is directly proportional to the voltage applied across it

• The proportionality constant is the resistance of the conductor

• The formula for Ohm's law is I = V/R, where I is the current, V is the voltage, and R is the resistance

• Ohm's law i...read more

Electric welding is a process of joining two metal pieces together using an electric arc.

• Electric current is passed through an electrode which creates an arc between the electrode and the metal pieces to be joined.

• The heat generated by the arc melts the metal pieces and fuses them together.

• Different types of electric welding include MIG, TIG, and Stick welding.

• Electric welding is commonly used in industries such as construction, automotive, and manufacturing.

Embankment, sub base, and subgrade are essential components of road projects for stability and durability.

• Embankment is the raised structure built along the sides of a road to support the roadbed.

• Sub base is the layer of material placed on top of the subgrade to provide a stable foundation for the pavement.

• Subgrade is the natural ground or prepared surface on which the road is built.

• Proper compaction of each layer is crucial for the overall strength and longevity of the road....read more

Process audit is a systematic examination of a process to ensure it is meeting its objectives and requirements.

• Process audit involves reviewing the process documentation, observing the process in action, and interviewing process stakeholders.

• The goal of a process audit is to identify areas for improvement and ensure the process is efficient, effective, and compliant with standards and regulations.

• Examples of processes that may be audited include manufacturing processes, servi...read more

Product audit is a systematic examination of a product to ensure it meets the specified requirements and standards.

• Product audit is a quality control process that involves examining a product to ensure it meets the required specifications.

• It involves checking the product's design, manufacturing process, and final output.

• Product audit helps to identify defects, non-conformities, and areas for improvement.

• Examples of product audit include checking the dimensions of a manufactur...read more

Manufacturing is the process of converting raw materials into finished products with specific tolerances.

• Manufacturing involves the use of machines, tools, and labor to transform raw materials into finished products.

• Tolerance refers to the allowable deviation from a specified dimension or property of a product.

• For example, if a product has a tolerance of +/- 0.1mm, it means that the actual dimension can vary within that range and still be considered acceptable.

• Quality enginee...read more

IS stands for Indian Standard and is used in the manufacturing of GI wire.

• IS is a set of standards developed by the Bureau of Indian Standards (BIS) for various products and materials.

• In the case of GI wire, the IS standards specify the requirements for the composition, dimensions, mechanical properties, and testing methods.

• Compliance with the IS standards ensures the quality and reliability of GI wire.

• Manufacturers and suppliers of GI wire need to adhere to the relevant IS s...read more

Software testing life cycle is a process of testing software in a systematic and planned manner.

• The testing process starts with the requirement analysis phase.

• Test planning is done to identify the scope, objectives, and resources required for testing.

• Test design involves creating test cases and test scenarios.

• Test execution is the actual process of running the tests and recording the results.

• Defect tracking and reporting is done to identify and document any issues found durin...read more

50 mm cover blocks are used in reinforced concrete structures to maintain the specified distance between the reinforcing bars and the surface of the concrete.

• Cover blocks are used to prevent corrosion of the reinforcement bars due to exposure to air and moisture.

• They also help in maintaining the specified concrete cover over the reinforcement bars.

• 50 mm cover blocks are commonly used in structures with heavy reinforcement, such as columns and beams.

• They can also be used in sl...read more

Bis and Pdi inspections can be handled by following a systematic approach.

• Understand the requirements and standards for the inspection

• Prepare the necessary equipment and tools

• Conduct the inspection according to the established procedures

• Document the results and report any non-conformities

• Take corrective actions to address any issues found

Quality is the degree to which a product or service meets or exceeds customer expectations and requirements.

• Quality is about meeting customer expectations and requirements.

• It is the degree to which a product or service is free from defects or errors.

• Quality involves consistency, reliability, and durability.

• It includes factors like performance, functionality, and usability.

• Quality can be measured through metrics and standards.

• Continuous improvement is essential for maintaining...read more

Medical devices can be categorized into various types based on their intended use and complexity.

• Diagnostic devices (e.g. MRI machines, blood glucose monitors)

• Therapeutic devices (e.g. pacemakers, insulin pumps)

• Surgical instruments (e.g. scalpels, forceps)

• Monitoring devices (e.g. ECG machines, pulse oximeters)

• Implantable devices (e.g. artificial joints, stents)

I manage customer complaints by listening to their concerns, investigating the issue, providing solutions, and following up to ensure satisfaction.

• Listen actively to understand the customer's complaint

• Investigate the root cause of the issue

• Provide timely and effective solutions to address the complaint

• Follow up with the customer to ensure their satisfaction

• Document and analyze trends in customer complaints for continuous improvement

Micrometer least count is more accurate than Vernier caliper.

• Micrometer least count is typically 0.01mm, while Vernier caliper least count is usually 0.02mm.

• Micrometer is used for more precise measurements in engineering and manufacturing.

• Vernier caliper is commonly used for general measurements and is less accurate compared to micrometer.

Smoke testing is a preliminary test to check if the software build is stable, while sanity testing is a subset of regression testing to verify specific functionalities.

• Smoke testing is done to ensure the critical functionalities of the software are working fine after a build, while sanity testing is done to verify specific functionalities or components.

• Smoke testing is a shallow and wide approach to testing, covering all major features, while sanity testing is a narrow and de...read more

There are various types of welding and different operation machines used in welding processes.

• Types of welding include MIG, TIG, Stick, and Flux-Cored welding.

• Different operation machines used in welding include welding guns, welding torches, and welding electrodes.

• The type of welding and operation machine used depends on the material being welded and the desired outcome.

IS code for concrete mix design is IS 10262:2009

• The IS code for concrete mix design is IS 10262:2009

• This code provides guidelines for proportioning of concrete mixes

• It covers various factors such as workability, strength, and durability of concrete mix

To repair a machine, first identify the problem and then follow the appropriate repair procedures.

• Identify the problem by observing the machine's behavior and consulting the manual.

• Follow the appropriate repair procedures outlined in the manual or by a qualified technician.

• Use the correct tools and replacement parts to ensure proper repair.

• Test the machine after repair to ensure it is functioning properly.

• Perform regular maintenance to prevent future issues.

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

• Vernier caliper has a least count of 0.02 mm, which means it can measure up to 0.02 mm accurately.

• Micrometer has a least count of 0.01 mm, allowing for more precise measurements compared to a vernier caliper.

Casting is a manufacturing process in which a liquid material is poured into a mold and allowed to solidify into the desired shape. Casting defects are imperfections that occur during this process.

• Casting involves pouring molten metal, plastic, or other materials into a mold to create a specific shape.

• Common casting defects include porosity, shrinkage, cold shuts, misruns, and inclusions.

• Porosity is the presence of air pockets or voids in the casting, which can weaken the str...read more

Electronic components are parts that make up electronic circuits, such as resistors, capacitors, transistors, and diodes.

• Resistors: control the flow of electric current

• Capacitors: store and release electrical energy

• Transistors: amplify or switch electronic signals

• Diodes: allow current to flow in one direction only

PEB material refers to pre-engineered building materials used in finishing construction projects.

• PEB materials are commonly used in construction projects for their durability and cost-effectiveness.

• Examples of PEB materials include steel beams, roofing sheets, wall panels, and insulation materials.

• Quality control is essential in ensuring that PEB materials meet industry standards and specifications.

• Inspecting PEB materials for defects, proper installation, and adherence to de...read more

NDT testing stands for Non-Destructive Testing, a method of testing materials without causing damage to them.

• NDT testing is used to detect flaws or defects in materials or products

• It is commonly used in industries such as aerospace, automotive, and construction

• Examples of NDT testing methods include ultrasonic testing, radiography, and magnetic particle testing

RMC offers better quality, consistency, and efficiency compared to site mix.

• RMC is produced in a controlled environment, ensuring consistent quality.

• It reduces the need for on-site storage of raw materials and equipment.

• RMC reduces the risk of human error and increases efficiency.

• It also reduces the amount of waste generated on-site.

• RMC can be customized to meet specific project requirements.

• Site mix, on the other hand, is prone to variations in quality and consistency.

• It req...read more

A transformer is an electrical device that transfers electrical energy from one circuit to another through electromagnetic induction.

• Transformers are used to increase or decrease the voltage of an alternating current (AC) power supply.

• They work on the principle of electromagnetic induction, where a changing magnetic field induces a voltage in a coil of wire.

• Transformers have two coils of wire, a primary coil and a secondary coil, which are wrapped around a magnetic core.

• When ...read more

8D is a problem-solving methodology used to identify, correct, and prevent recurring problems.

• 8D stands for 8 Disciplines

• It is commonly used in the automotive and manufacturing industries

• The 8 disciplines include: Team Formation, Problem Description, Containment Actions, Root Cause Analysis, Corrective Actions, Preventive Actions, Implementation, and Closure

• The goal of 8D is to identify the root cause of a problem and prevent it from recurring

• It involves a cross-functional te...read more

Yes, I have studied Mechanical Drawing.

• I have taken courses in Mechanical Drawing during my engineering studies.

• I am proficient in reading and interpreting technical drawings.

• I have experience using CAD software to create and modify mechanical drawings.

• I understand the importance of accurate and detailed drawings in ensuring quality in manufacturing processes.

To fix a machine, I would first identify the problem and then follow a systematic approach to troubleshoot and repair the issue.

• Identify the problem by observing the machine and checking for error codes or messages

• Refer to the machine's manual or technical documentation for troubleshooting steps

• Perform basic maintenance tasks such as cleaning and lubricating the machine

• Replace any faulty or worn out parts

• Test the machine to ensure it is functioning properly

• Document the repair...read more

A lathe machine rotates a workpiece on its axis to perform various operations such as cutting, drilling, and sanding.

• The workpiece is held in place by a chuck or collet while a cutting tool is moved along the workpiece to remove material.

• The cutting tool can be controlled manually or by a computer numerical control (CNC) system.

• Lathe machines can be used to create a variety of shapes, including cylinders, cones, and spheres.

• Different types of lathe machines include engine lat...read more