200+ Quality Controller Interview Questions and Answers

The minimum compressive strength of M:25 concrete is a concern in quality control.

• The minimum compressive strength of M:25 concrete is specified in the design mix.

• It is important to ensure that the concrete meets or exceeds the specified minimum compressive strength.

• Testing of concrete samples is conducted to determine the compressive strength.

• The minimum compressive strength requirement may vary depending on the project specifications.

• Failure to meet the minimum compressive ...read more

CCP stands for Critical Control Points which are the points in food preparation where control can be applied to prevent, eliminate or reduce hazards.

• CCP are the points in the food preparation process where control can be applied to prevent, eliminate or reduce hazards

• They are the most important points in the process where failure to control can result in a food safety hazard

• Examples of CCP include cooking, chilling, and packaging

• CCP are identified through a hazard analysis an...read more

I would immediately check the power source, troubleshoot the issue, and notify the appropriate personnel for assistance.

• Check if the power source is connected properly

• Inspect for any blown fuses or tripped circuit breakers

• Contact maintenance or electrician for further assistance

Packing in pharmaceutical refers to the process of packaging drugs in suitable containers. Types include primary, secondary, and tertiary packaging.

• Primary packaging involves the direct contact of the drug with the container, such as blister packs or vials.

• Secondary packaging includes the packaging of primary containers, such as cartons or boxes.

• Tertiary packaging involves the packaging of secondary containers for transportation and storage, such as pallets or shrink wrap.

• The...read more

A fuel injector is a component in an internal combustion engine that delivers fuel into the combustion chamber.

• Fuel injector is responsible for delivering the right amount of fuel at the right time for combustion

• CNG (Compressed Natural Gas) is a type of fuel used in some vehicles, while a fuel injector is a component that delivers fuel in liquid form

• The symbol for first angle of projection is a right angle triangle with a dot inside representing the point of projection

Dent mark and tray mark are terms used in quality control to describe specific types of marks or damage on products or trays.

• Dent mark refers to a small depression or indentation on a product or tray caused by impact or pressure.

• Tray mark refers to a visible mark or stain left on a tray due to contact with a product or external substance.

• Dent marks can be caused by mishandling, dropping, or improper storage of products or trays.

• Tray marks can be caused by spills, leaks, or th...read more

ISO stands for International Organization for Standardization.

• ISO is a non-governmental organization that develops and publishes international standards for various industries.

• It was founded in 1947 and is headquartered in Geneva, Switzerland.

• ISO has over 165 member countries and has published more than 23,000 standards.

• Some examples of ISO standards include ISO 9001 for quality management, ISO 14001 for environmental management, and ISO 27001 for information security managem...read more

FSSAI stands for Food Safety and Standards Authority of India.

• FSSAI is a regulatory body under the Ministry of Health and Family Welfare.

• It was established in 2006 to ensure food safety and hygiene in India.

• FSSAI sets standards for food products and regulates their manufacture, storage, distribution, sale, and import.

• It also issues licenses and registrations to food businesses.

• FSSAI has been instrumental in promoting food safety awareness and ensuring the availability of safe...read more

The 5s methodology consists of five types: Sort, Set in Order, Shine, Standardize, and Sustain.

• Sort: Organizing and removing unnecessary items from the workplace.

• Set in Order: Arranging items in a logical and efficient manner.

• Shine: Cleaning and maintaining cleanliness in the workplace.

• Standardize: Establishing consistent processes and procedures.

• Sustain: Ensuring the continuation of the 5s practices over time.

Materials used in production vary depending on the industry, but common examples include raw materials, chemicals, packaging materials, and equipment.

• Raw materials (e.g. metal, plastic, wood)

• Chemicals (e.g. solvents, adhesives)

• Packaging materials (e.g. boxes, labels)

• Equipment (e.g. machinery, tools)

The role of the QC department in an industry is to ensure that products or services meet quality standards and customer expectations.

• Performing inspections and tests on raw materials, components, and finished products

• Identifying and resolving quality issues and non-conformities

• Implementing quality control procedures and processes

• Monitoring and analyzing quality data to identify trends and areas for improvement

• Collaborating with other departments to address quality concerns

• Ens...read more

The number of bricks in one cubic metre depends on the size of the bricks.

• The size of the bricks determines the number of bricks in one cubic metre.

• Different sizes of bricks will result in different numbers of bricks in one cubic metre.

• To calculate the number of bricks, divide the volume of the cubic metre by the volume of one brick.

I will analyze the product by conducting thorough inspections, testing for quality and functionality, and comparing against set standards.

• Conduct visual inspections to check for any defects or irregularities

• Perform functional testing to ensure the product works as intended

• Compare the product against established quality standards and specifications

• Use statistical analysis to identify any trends or patterns in product performance

• Seek feedback from end users or customers to gath...read more

The flow of water, methanol, and isopropanol can be determined by measuring their respective viscosities and densities.

• Viscosity and density of each liquid must be measured

• The flow rate can be calculated using the Hagen-Poiseuille equation

• The flow rate will vary depending on the pipe diameter and pressure

• The flow rate can be optimized by adjusting the pipe diameter and pressure

• The flow rate of each liquid can be compared to ensure consistency

Quality control is a process that ensures products or services meet specified requirements and standards.

• Quality control involves monitoring and inspecting products or services to identify defects or deviations from standards.

• It includes implementing corrective actions to address any issues found during the inspection process.

• Quality control aims to prevent defects, improve customer satisfaction, and maintain consistent quality.

• Various techniques and tools are used in quality...read more

Use a sorting algorithm like bubble sort or quicksort to sort the array without using built-in methods.

• Implement bubble sort algorithm to compare and swap elements in the array.

• Alternatively, implement quicksort algorithm to recursively divide and conquer the array.

• Ensure to handle edge cases like empty array or array with only one element.

Quality work is work that meets or exceeds the expected standards and requirements.

• Quality work is consistent and reliable.

• It is completed on time and within budget.

• It meets or exceeds customer expectations.

• It is free from defects and errors.

• It is continuously improved upon.

• Examples include products that are durable and functional, services that are efficient and effective, and processes that are streamlined and error-free.

Several factors affect the quality of a product.

• Raw materials

• Production process

• Equipment maintenance

• Quality control measures

• Packaging and storage

Yes, I can work well under pressure by staying organized, prioritizing tasks, and maintaining a positive attitude.

• I have experience working in fast-paced environments where quick decision-making and problem-solving skills are essential.

• I am able to stay calm and focused under pressure, ensuring that tasks are completed accurately and efficiently.

• I prioritize tasks effectively to meet deadlines and deliver high-quality results.

• I communicate effectively with team members to col...read more

Avogadro's number is a constant representing the number of constituent particles (usually atoms or molecules) in one mole of a substance.

• Avogadro's number is approximately 6.022 x 10^23.

• It is named after Italian scientist Amedeo Avogadro.

• It is used in chemistry to relate the mass of a substance to the number of atoms or molecules it contains.

My strength lies in my attention to detail and ability to identify and resolve quality issues efficiently.

• Attention to detail in identifying quality issues

• Efficiently resolving quality issues

• Strong problem-solving skills

• Ability to work well under pressure

• Excellent communication skills

The Beer-Lambert law relates the attenuation of light to the properties of the material through which the light is traveling.

• Also known as Beer's law or Lambert-Beer law

• Used in chemistry and physics to measure the concentration of a substance in a solution

• States that the absorbance of a substance is directly proportional to its concentration and the path length of the light through the material

• A = εcl, where A is absorbance, ε is the molar absorptivity, c is the concentration...read more

Yes, quarantine rooms are designated areas for isolating individuals who may have been exposed to infectious diseases.

• Quarantine rooms are used to prevent the spread of infectious diseases.

• They are typically equipped with negative air pressure systems to prevent airborne transmission.

• Medical staff and visitors must wear protective gear when entering quarantine rooms.

• Examples of situations where quarantine rooms may be used include outbreaks of Ebola, SARS, or COVID-19.

Injection storage requires proper temperature, light, and humidity control.

• Injections should be stored in a cool, dry place.

• Temperature should be maintained between 2-8°C for most injections.

• Some injections may require freezing temperatures.

• Light exposure should be minimized.

• Humidity should be controlled to prevent moisture damage.

• Expired injections should be disposed of properly.

• Storage conditions should be monitored and recorded regularly.

R and R1 are statistical measures used in the field of quality control.

• R stands for Range and is the difference between the highest and lowest values in a sample.

• R1 is the range of the first half of the sample data.

• Both R and R1 are used to calculate the variability of a process.

• They are commonly used in Six Sigma methodology to ensure quality control in manufacturing processes.

The capacity of the beer tanks varied depending on the specific tank, ranging from 1000 to 5000 liters.

• Capacity of beer tanks ranged from 1000 to 5000 liters

• Different tanks had different capacities

• Capacity was determined based on production needs

Red defects refer to the defects that are critical and have a high impact on the quality of the product.

• Red defects are the most severe type of defects that can occur in a product.

• These defects can lead to the product being unusable or unsafe.

• Examples of red defects include missing safety features in a car, contaminated food products, or faulty medical devices.

• Identifying and addressing red defects is crucial to ensure the overall quality and safety of the product.

The question is not clear and seems to be a jumbled mix of electrical components and terms.

• It is unclear what the question is asking for specifically

• The terms mentioned are not related to each other

• More information or clarification is needed to answer the question

Fruits are the mature ovaries of flowering plants while vegetables are the edible parts of plants.

• Fruits contain seeds while vegetables do not

• Fruits are usually sweet while vegetables are savory

• Fruits are often eaten raw while vegetables are usually cooked

• Examples of fruits include apples, oranges, and bananas while examples of vegetables include carrots, broccoli, and spinach

Concrete technology refers to the science and technology of concrete materials and their properties.

• It involves the study of the composition, properties, and behavior of concrete materials.

• It includes the design, production, and testing of concrete mixtures.

• Concrete technology is used in the construction industry for building structures such as bridges, buildings, and roads.

• Examples of concrete technology include the use of admixtures to improve the properties of concrete, th...read more

HACCP stands for Hazard Analysis and Critical Control Points. It is a systematic approach to identify, evaluate, and control food safety hazards.

• HACCP is a preventive system used in the food industry to ensure the safety of food products.

• It involves identifying potential hazards, determining critical control points, and implementing control measures.

• HACCP focuses on monitoring and controlling critical points in the production process to prevent hazards.

• Examples of critical co...read more

Corona in transmission line refers to the phenomenon where electric field strength is highest at the conductor surface.

• Corona discharge occurs when the electric field strength exceeds the breakdown strength of air.

• Corona can lead to power loss, audible noise, radio interference, and damage to the transmission line.

• Examples of equipment used to reduce corona include corona rings and grading rings.

Market complaints can be controlled by identifying the root cause and implementing corrective actions.

• Collect and analyze customer feedback

• Identify the root cause of the complaints

• Implement corrective actions to address the root cause

• Monitor the effectiveness of the corrective actions

• Communicate with customers to show that their feedback is valued

The difference between +/- 5 if it is 7 is that +5 would result in 12 and -5 would result in 2.

• The question is asking for the difference between adding or subtracting 5 from 7.

• Adding 5 to 7 would result in 12.

• Subtracting 5 from 7 would result in 2.

• The difference between 12 and 2 is 10.

LED fixture brightness is measured in lumens, not wattage.

• LED fixture brightness is measured in lumens, which is a unit of luminous flux.

• Wattage, on the other hand, measures the amount of power consumed by the LED fixture.

• Lumens indicate the total amount of visible light emitted by the fixture, providing a more accurate measure of brightness.

• For example, a 60-watt incandescent bulb may produce around 800 lumens of light.

• It is important to consider lumens rather than wattage w...read more

Chemistry is the study of matter, its properties, composition, and interactions.

• Chemistry involves understanding the structure and behavior of atoms and molecules.

• It explores how substances react with each other and transform into new substances.

• Chemistry is essential in fields like pharmaceuticals, food science, and environmental science.

• Examples include studying the properties of elements on the periodic table and analyzing chemical reactions in a laboratory.

Maintaining cold chain and Noms is crucial for quality control in various industries.

• Regularly monitoring temperature of storage facilities

• Using proper packaging materials to insulate products

• Training staff on proper handling procedures

• Implementing temperature monitoring devices like data loggers

• Following guidelines set by regulatory bodies like WHO for Noms

Breakdown refers to the failure of a machine or system to function properly.

• Breakdown can be caused by various factors such as wear and tear, lack of maintenance, or manufacturing defects.

• It can result in downtime, loss of productivity, and increased costs for repairs or replacements.

• Preventive maintenance and regular inspections can help reduce the risk of breakdowns.

• Examples of breakdowns include a car engine failing to start, a computer crashing, or a production line shutt...read more

Checking food stability involves assessing the physical, chemical, and microbiological properties of food to ensure it remains safe and suitable for consumption over time.

• Monitor changes in color, texture, and flavor of the food product.

• Test for pH levels, moisture content, and presence of preservatives to ensure chemical stability.

• Conduct microbial testing to detect any spoilage organisms that may affect the safety of the food.

• Use accelerated stability testing to simulate th...read more

There is no magic solution.

• There is no one-size-fits-all solution for quality control.

• Quality control requires a combination of various techniques and processes.

• Continuous improvement and adaptation are key in quality control.

• Examples of quality control techniques include statistical process control, Six Sigma, and Lean manufacturing.

FIFO stands for First-In-First-Out.

• FIFO is a method of inventory management.

• It assumes that the first items purchased are the first sold.

• It is commonly used in industries such as food and beverage.

• It helps prevent spoilage and waste.

• It is also used in computer science for data structures.

• For example, a queue data structure follows the FIFO principle.

QA focuses on preventing defects while QC focuses on identifying and correcting defects.

• QA is a proactive process that involves planning, designing, and implementing processes to prevent defects from occurring.

• QC is a reactive process that involves testing and inspecting products to identify and correct defects.

• QA is focused on the entire software development life cycle, while QC is focused on the testing phase.

• QA is concerned with process improvement, while QC is concerned w...read more

There are many types of steel, each with different properties and uses.

• Carbon steel

• Alloy steel

• Stainless steel

• Tool steel

• High-speed steel

International standardization is crucial for ensuring consistency and quality across organizations worldwide.

• International standards help organizations operate more efficiently and effectively.

• They provide a common language and framework for businesses to communicate and collaborate.

• Examples of international standards include ISO 9001 for quality management and ISO 14001 for environmental management.

• Adherence to international standards can also improve a company's reputation ...read more

The Gram stain is a crucial technique in microbiology used to differentiate bacteria into two groups based on their cell wall composition.

• Helps in identifying and classifying bacteria as either Gram-positive or Gram-negative

• Aids in determining appropriate treatment strategies for bacterial infections

• Provides valuable information on the morphology and arrangement of bacterial cells

• Can be used to guide the selection of antibiotics based on the Gram stain results

A register stores a fixed number of bits, typically determined by the architecture of the computer system.

• The number of bits in a register can vary depending on the computer architecture.

• Common register sizes include 8 bits, 16 bits, 32 bits, and 64 bits.

• Registers are used to store data temporarily during processing.

• Example: In a 32-bit computer system, a register can store 32 bits of data.

The three types of addressing modes are immediate, direct, and indirect.

• Immediate addressing mode: The operand is directly specified in the instruction itself. Example: ADD #5

• Direct addressing mode: The operand is the address of the data. Example: ADD 500

• Indirect addressing mode: The operand is the address of a memory location that contains the address of the data. Example: ADD @500