70+ Quaity Control Engineer Interview Questions and Answers

To make projection of I section and find strength, use standard formulas and calculations.

• Calculate the moment of inertia of the I section

• Determine the section modulus

• Use the bending stress formula to find the maximum stress

• Calculate the shear stress using the shear formula

• Combine the stresses to find the maximum stress

• Compare the maximum stress to the yield strength of the material

• Projection of I section can be done using CAD software or by hand calculations

The weight of the coil can be used to determine the length of the produced pipe.

• The weight of the coil and the density of the material can be used to calculate the volume of the coil.

• The volume of the coil can be divided by the cross-sectional area of the pipe to determine the length of the produced pipe.

• The accuracy of the calculation depends on the consistency of the material density and the cross-sectional area of the pipe.

The number and types of pipes used in a water project vary depending on the specific project requirements.

• The number of pipes used in a water project can range from a few to hundreds or even thousands, depending on the scale of the project.

• Common types of pipes used in water projects include PVC pipes, HDPE pipes, ductile iron pipes, and steel pipes.

• The specific types of pipes used in a water project depend on factors such as the water source, water quality, pressure requirem...read more

Yes, I have knowledge of soldering, desoldering, resistors, and electronic components.

• I have experience in soldering and desoldering electronic components onto circuit boards.

• I am familiar with different types of resistors and their functions in electronic circuits.

• I understand the importance of proper soldering techniques to ensure quality control in electronic manufacturing processes.

Relief angle is the angle between the flank and the perpendicular to the cutting edge. Rack angle is the angle between the tooth face and a plane perpendicular to the cutter axis. Counter bore is a cylindrical flat-bottomed hole that enlarges another hole.

• Relief angle is important for reducing friction and heat buildup during cutting operations.

• Rack angle is important for determining the shape and size of the teeth on a gear or rack.

• Counter bore is often used to create a flat...read more

Problem solving methodology is a structured approach to identify, analyze and solve problems.

• Identify the problem

• Gather data and analyze it

• Develop potential solutions

• Select the best solution

• Implement the solution

• Evaluate the results

• Continuous improvement

• Examples: Six Sigma, Lean, PDCA cycle

Pressure vessel manufacturing involves designing, fabricating, and testing containers that hold gases or liquids at high pressures.

• Pressure vessels are used in various industries such as oil and gas, chemical, and power generation.

• Manufacturing process includes material selection, welding, and non-destructive testing.

• Standards such as ASME Boiler and Pressure Vessel Code must be followed to ensure safety and quality.

• Examples of pressure vessels include boilers, storage tanks,...read more

The 3R according to quality refers to Reduce, Reuse, and Recycle.

• Reduce: Minimizing waste and eliminating unnecessary processes or materials.

• Reuse: Finding ways to use products or materials again without disposing of them.

• Recycle: Transforming waste materials into new products to reduce the consumption of new resources.

• Example: Implementing lean manufacturing techniques to reduce waste in production processes.

I have studied quality control engineering and related subjects. I am familiar with food safety standards and personal protective equipment (PPE).

• Studied quality control engineering and related subjects

• Familiar with food safety standards

• Knowledgeable about personal protective equipment (PPE)

5S is a quality control methodology that focuses on organizing and maintaining a clean and efficient work environment.

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

• Sort involves removing unnecessary items from the workspace.

• Set in Order involves arranging necessary items in a logical and efficient manner.

• Shine involves cleaning and maintaining the workspace.

• Standardize involves establishing guidelines and procedures for maintaining the organized workspace....read more

Quality control is a process used to ensure that products or services meet specified requirements. Instruments used include calipers, micrometers, spectrophotometers, etc.

• Quality control involves monitoring and maintaining standards for products or services

• Instruments used in quality control include calipers for measuring dimensions, micrometers for precise measurements, spectrophotometers for analyzing colors, etc.

• Quality control helps in identifying defects or deviations fr...read more

Colour coding of resistors is a system used to indicate the resistance value and tolerance of a resistor through colored bands.

• Resistors have colored bands that represent different numbers and multipliers.

• The first two bands indicate the first two digits of the resistance value, the third band indicates the multiplier, and the fourth band indicates the tolerance.

• For example, a resistor with bands of red, violet, orange, and gold would have a resistance value of 27k ohms with ...read more

IS code for material testing and slump test is IS 516:1959 and IS 1199:1959 respectively.

• IS 516:1959 is the code for testing of concrete and covers various aspects of material testing.

• IS 1199:1959 is the code for determining the slump of concrete.

• Both codes are widely used in the construction industry in India.

• IS 516:1959 covers tests for compressive strength, flexural strength, and modulus of elasticity.

• IS 1199:1959 specifies the apparatus, procedure, and precautions to be t...read more

The mixing ratio of M25 concrete is 1:1:2 (cement:sand:aggregate).

• Mixing ratio of M25 concrete is 1:1:2 (cement:sand:aggregate)

• This means for every part of cement, there is an equal part of sand and two parts of aggregate

• For example, if you have 1 kg of cement, you would need 1 kg of sand and 2 kg of aggregate

The dimensions of the slump cone are 100mm, 200mm, and 300mm for top, bottom, and height respectively.

• The slump cone is used to measure the consistency of concrete.

• The dimensions of the cone affect the test results.

• The cone is filled with concrete and then lifted, and the amount of slump is measured.

• The test is used to ensure the concrete is of the correct consistency for the intended use.

Sample size for inspection is determined based on statistical methods and quality standards.

• Determine the acceptable level of risk for making a type I error (rejecting a good product)

• Consider the desired level of confidence in the results

• Calculate the required sample size using statistical formulas such as sample size calculation for proportions or means

• Ensure the sample size is sufficient to detect differences or defects at a meaningful level

• Consider the cost and time constr...read more

The list count of a vernier caliper is the number of divisions on the sliding scale that align with the main scale.

• The list count is used to determine the measurement accuracy of the caliper.

• It is important to ensure that the sliding scale is properly aligned with the main scale before taking measurements.

• The list count can vary depending on the type and size of the caliper.

• For example, a 6-inch vernier caliper may have a list count of 20, while a 12-inch caliper may have a l...read more

Inspection will be done at various stages of production process to ensure quality standards are met.

• Inspection will be done at incoming raw material stage

• Inspection will be done during production process

• Inspection will be done at final product stage

• Inspection will be done randomly to ensure consistency

• Inspection will be done as per quality control plan

• Inspection will be done using various tools and techniques such as visual inspection, measurement, testing, etc.

A universal testing machine is a device used to test the mechanical properties of materials.

• It is commonly used in industries such as manufacturing, construction, and research.

• It can measure properties like tensile strength, compression strength, and flexural strength.

• The machine applies controlled forces to a specimen and measures the response, allowing for material characterization and quality control.

• It consists of a load frame, grips or fixtures to hold the specimen, and ...read more

Ru output is a measure of the surface finish of a part. Concentricity is the measurement of the center point of a feature relative to its axis.

• Ru output is a measure of the roughness of a surface, typically measured in microinches or micrometers.

• Concentricity is the measurement of how well the center point of a feature aligns with its axis.

• For example, in a cylindrical part, concentricity would measure how well the center of the cylinder aligns with its axis.

• Both ru output an...read more

The least count of Vernier Caliper is the smallest measurement that can be read on the scale.

• The least count of a Vernier Caliper is typically 0.02 mm or 0.001 inches.

• It is determined by the number of divisions on the main scale and the Vernier scale.

• For example, if the main scale has 20 divisions and the Vernier scale has 18 divisions, the least count would be 0.02 mm.

Coil length and weight can be found using measuring tools and scales.

• Measure the length of the coil using a measuring tape or ruler.

• Weigh the coil using a scale or balance.

• Record the measurements accurately for quality control purposes.

Before roof tile work, proper preparation is essential to ensure a successful installation.

• Inspect the roof for any damage or leaks that need to be repaired before installing new tiles

• Ensure the roof structure is sound and can support the weight of the tiles

• Clean the roof surface to remove any debris or dirt that could affect the adhesion of the tiles

• Measure and plan the layout of the tiles to ensure a proper fit and aesthetic appearance

• Gather all necessary tools and material...read more

Different types of concrete include normal concrete, high-strength concrete, lightweight concrete, and precast concrete.

• Normal concrete is the most common type and is used for general construction.

• High-strength concrete has a higher compressive strength and is used in high-rise buildings and bridges.

• Lightweight concrete is made with lightweight aggregates and is used for reducing the overall weight of a structure.

• Precast concrete is manufactured off-site and then transported ...read more

Quality is meeting or exceeding customer expectations while inspection is the process of verifying that the product meets the required standards.

• Quality is the degree of excellence of a product or service

• Inspection is the process of checking if the product meets the required standards

• Quality control ensures that the product meets the required quality standards

• Inspection is done at various stages of production to ensure quality

• Quality and inspection are important for customer ...read more

The dimension of slump cone is 300 mm height, 200 mm top diameter, and 100 mm bottom diameter.

• The height of the slump cone is 300 mm.

• The top diameter of the slump cone is 200 mm.

• The bottom diameter of the slump cone is 100 mm.

• The slump cone is made of metal or plastic.

• It is used to measure the consistency of fresh concrete.

• The test involves filling the cone with concrete and then lifting it to see how much the concrete slumps.

• The dimension of the slump cone is specified by va...read more

Yes, code for construction materials exists to ensure quality and safety standards are met.

• Construction materials are assigned codes based on their properties and intended use.

• These codes are used to ensure compliance with building codes and regulations.

• Examples of codes include ASTM for steel and concrete, and UL for electrical components.

The least count of micrometer is 0.01 mm or 0.001 cm.

• Least count is the smallest measurement that can be read on a measuring instrument.

• Micrometer is used to measure small distances with high accuracy.

• The least count of a micrometer depends on the number of divisions on the thimble and the pitch of the screw.

• For example, if the thimble has 50 divisions and the pitch of the screw is 0.5 mm, then the least count would be 0.01 mm or 0.001 cm.

A mix design for M25 grade concrete involves selecting the right proportions of cement, sand, aggregates, and water.

• Determine the target strength of the concrete

• Select the water-cement ratio based on the exposure conditions

• Calculate the cement content based on the water-cement ratio and target strength

• Determine the aggregate proportions based on the maximum size of aggregates and the fineness modulus of sand

• Adjust the mix proportions based on trial mixes and test results

I have handled a variety of materials including metals, plastics, ceramics, and composites.

• Metals

• Plastics

• Ceramics

• Composites

Yes, I have knowledge in C, C++, and Python.

• Proficient in C for low-level programming and system development.

• Experienced in C++ for object-oriented programming and software development.

• Skilled in Python for scripting, automation, and data analysis.

Quality means meeting or exceeding customer expectations and consistently delivering products or services that are reliable and free from defects.

• Quality is the degree to which a product or service meets the requirements and expectations of customers.

• It involves ensuring that products or services are reliable, consistent, and free from defects.

• Quality control engineers play a crucial role in monitoring and improving the quality of products or services.

• They use various techniq...read more

5S is a methodology used in companies to improve workplace organization and efficiency.

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

• Sort involves removing unnecessary items from the workplace.

• Set in Order focuses on arranging necessary items in a logical and efficient manner.

• Shine refers to cleaning and maintaining the workplace.

• Standardize involves creating guidelines and procedures for maintaining the organized workplace.

• Sustain is about continuously pr...read more

Quality control is the process of ensuring that products or services meet the desired level of quality. There are two types of quality: product and process.

• Quality control involves monitoring and testing products or services to ensure they meet the desired level of quality.

• Product quality refers to the characteristics of the product itself, such as its durability, reliability, and performance.

• Process quality refers to the quality of the processes used to create the product, s...read more

Panel checking is a quality control process that involves inspecting and verifying the accuracy and functionality of electrical control panels.

• Panel checking is performed to ensure that electrical control panels are built correctly and meet the required specifications.

• It involves visually inspecting the panel for any physical defects or errors in wiring.

• Functional testing is also conducted to ensure that all components and circuits are working properly.

• Panel checking may incl...read more

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

• GD&T is a language used to communicate design intent and engineering tolerances

• It uses symbols, such as concentricity, perpendicularity, and flatness, to specify the allowable variation in a part's geometry

• GD&T is used in industries such as aerospace, automotive, and manufacturing

• It helps ensure that parts are manufactured correctly and fit together pro...read more

The main thing in quality is meeting or exceeding customer expectations and requirements.

• Meeting or exceeding customer expectations and requirements

• Consistency in delivering products or services

• Continuous improvement in processes and products

• Preventing defects rather than detecting and fixing them

• Quality control measures and standards

• Customer satisfaction and feedback

The company changed its use to improve efficiency and quality control processes.

• The company may have changed its use to streamline operations and reduce costs.

• The change could have been made to comply with new regulations or standards.

• The company may have shifted focus to a different market or product line.

• The change could have been driven by customer feedback or market trends.

• Examples: implementing new software for quality control, reorganizing production processes for bette...read more

Parameters used in quality control engineering include accuracy, precision, reliability, repeatability, and reproducibility.

• Accuracy: how close a measurement is to the true value

• Precision: how close repeated measurements are to each other

• Reliability: consistency of results over time

• Repeatability: ability to reproduce results under the same conditions

• Reproducibility: ability to reproduce results by different people or in different labs

Quality is important as it ensures customer satisfaction, reduces costs, improves reputation, and increases efficiency.

• Ensures customer satisfaction by meeting or exceeding expectations

• Reduces costs by minimizing rework, waste, and defects

• Improves reputation by consistently delivering high-quality products or services

• Increases efficiency by streamlining processes and reducing errors

Time is money as it emphasizes the importance of time management in achieving financial success.

• Time is a finite resource that cannot be replenished

• Wasting time can lead to missed opportunities and lost profits

• Efficient use of time can lead to increased productivity and profitability

• Examples: Just-in-time manufacturing, Lean Six Sigma, Agile methodology

Curing compounds are used in construction to retain moisture in concrete during the curing process.

• Curing compounds are applied to the surface of freshly placed concrete to prevent moisture loss.

• They form a membrane that retains moisture and allows the concrete to properly cure.

• Curing compounds help in reducing cracks, improving strength, and enhancing durability of concrete.

• Examples of curing compounds include acrylic-based, wax-based, and resin-based compounds.

Quality control refers to the process of ensuring that products or services meet the desired level of quality.

• Quality control involves inspecting, testing, and verifying products or services to ensure they meet the required standards.

• It also involves identifying and correcting any defects or issues that may arise during the production process.

• Quality control can be applied to various industries, such as manufacturing, healthcare, and software development.

• Examples of quality c...read more

Abnormality sechivatio refers to the process of identifying and addressing abnormalities in quality control.

• Abnormality sechivatio involves detecting deviations from expected quality standards.

• It includes analyzing data, conducting inspections, and implementing corrective actions.

• Examples of abnormality sechivatio include identifying defective products, monitoring process variations, and addressing non-conformities.

• The goal is to ensure consistent quality and prevent defects ...read more

PDI inspection stands for Pre-Delivery Inspection, which is a quality control process conducted before delivering a product or service to the customer.

• PDI inspection is a comprehensive check performed to ensure that the product or service meets the required quality standards.

• It involves inspecting various aspects such as functionality, performance, appearance, and safety.

• PDI inspections are commonly conducted in industries like automotive, electronics, and construction.

• For ex...read more

Ensuring quality involves implementing processes and procedures to meet standards and requirements.

• Developing quality control plans and procedures

• Conducting inspections and tests at various stages of production

• Implementing corrective actions when defects are found

• Training employees on quality standards and procedures

• Continuous monitoring and improvement of processes

A diode is a semiconductor device that allows current to flow in one direction only.

• Diodes have two terminals: an anode and a cathode.

• They are commonly used in rectifier circuits to convert AC to DC.

• Diodes can also be used for voltage regulation, signal demodulation, and signal mixing.

• Examples of diodes include the PN junction diode, Schottky diode, and Zener diode.