10+ Alldigi Tech Interview Questions and Answers

APQP is a process used in the automotive industry to ensure quality and consistency in new product development.

• APQP stands for Advanced Product Quality Planning

• It is a structured process used in the automotive industry to ensure quality and consistency in new product development

• It involves five stages: Planning and Definition, Product Design and Development, Process Design and Development, Product and Process Validation, and Launch, Assessment and Feedback

• Each stage has speci...read more

QA focuses on preventing defects, while QC focuses on identifying and fixing defects.

• QA stands for Quality Assurance and is a proactive process that focuses on preventing defects by establishing processes and standards.

• QC stands for Quality Control and is a reactive process that focuses on identifying and fixing defects through inspections and testing.

• QA is concerned with the overall quality of the product or service, while QC is concerned with the quality of individual compo...read more

GD&T stands for Geometric Dimensioning and Tolerancing. PPAP stands for Production Part Approval Process.

• GD&T is a system of symbols and rules used to specify the geometry of mechanical parts and assemblies.

• PPAP is a set of documents that demonstrate a supplier's ability to meet customer requirements and ensure consistent quality.

• GD&T helps ensure that parts fit together correctly and function properly.

• PPAP includes documents such as control plans, process flow diagrams, and ...read more

6 sigma is a statistical measure of quality that aims to achieve 3.4 defects per million opportunities. PPM stands for parts per million.

• 6 sigma is a methodology used to improve quality by reducing defects and variability in processes

• It aims to achieve a level of quality where there are only 3.4 defects per million opportunities

• PPM is a unit of measurement used to express the number of defective parts per million produced

• It is often used in manufacturing and engineering indus...read more

The seven QC tools are basic statistical tools used to identify and solve quality problems.

• Check sheets - used to collect data in a structured manner

• Pareto charts - used to identify the most frequent problems

• Histograms - used to show the distribution of data

• Cause-and-effect diagrams - used to identify the root cause of a problem

• Control charts - used to monitor a process over time

• Scatter diagrams - used to show the relationship between two variables

• Flowcharts - used to show th...read more

7 QC tools and SPC are essential quality control techniques used in manufacturing and other industries.

• 7 QC tools include Pareto chart, cause-and-effect diagram, control chart, histogram, scatter diagram, flowchart, and check sheet.

• SPC involves statistical analysis of data to identify and control process variation.

• Both techniques are used to improve quality, reduce defects, and increase efficiency.

• They are widely used in industries such as automotive, electronics, and healthc...read more

Why-Why analysis is a problem-solving technique used to identify the root cause of a problem by asking 'why' multiple times.

• Helps to identify the underlying cause of a problem

• Uses a series of 'why' questions to drill down to the root cause

• Prevents treating symptoms instead of the actual problem

• Improves the effectiveness of corrective actions

• Example: Why did the machine stop working? - Because the motor burned out. Why did the motor burn out? - Because it overheated. Why did i...read more

MSA stands for Measurement System Analysis. It is a statistical method used to determine the variation in measurement data.

• MSA is used to evaluate the reliability and accuracy of a measurement system.

• It helps to identify the sources of variation in the measurement process.

• MSA is important in ensuring that the measurement system is capable of producing accurate and consistent results.

• Examples of measurement systems include scales, gauges, and thermometers.

• MSA involves analyzin...read more

CP is a measure of process capability, while CPK is a measure of process capability with respect to the specification limits.

• CP measures the variability of the process relative to the tolerance range

• CPK measures the capability of the process to produce within the specification limits

• CPK takes into account the deviation of the process from the target value

• CPK is a more comprehensive measure of process capability than CP