MAIS INDIA MEDICAL DEVICES Interview Questions, Process, and Tips

Cp, Cpk, Pp, and Ppk are statistical process capability indices used to measure the ability of a process to produce products within specification limits.

• Cp and Cpk are used for short-term process capability analysis, while Pp and Ppk are used for long-term process capability analysis.

• Cp measures the potential capability of a process to meet specifications, while Cpk measures the actual capability of a process to meet s...read more

Hypothesis testing is a statistical method to test a hypothesis about a population parameter.

• It involves formulating a null hypothesis and an alternative hypothesis.

• The null hypothesis assumes that there is no significant difference between the sample and population.

• The alternative hypothesis assumes that there is a significant difference between the sample and population.

• Types of hypothesis testing include one-tailed ...read more

DOE types include screening, factorial, response surface, and mixture designs. Sample size calculation depends on the type of DOE.

• Screening designs are used to identify the most important factors affecting a response.

• Factorial designs are used to study the effects of multiple factors and their interactions.

• Response surface designs are used to optimize a response by finding the best combination of factors.

• Mixture design...read more

MSA stands for Measurement System Analysis. It is used to evaluate the measurement system's ability to provide accurate and reliable data.

• MSA is used to identify and quantify the sources of variation in a measurement system.

• It helps in determining the accuracy, precision, and stability of the measurement system.

• There are two types of MSA: Attribute Agreement Analysis and Variable Gauge R&R Analysis.

• Attribute Agreement ...read more

Control charts are statistical tools used to monitor and control a process over time.

• They help identify if a process is stable or unstable.

• They can be used to detect and correct problems in a process.

• Common types include X-bar and R charts, p charts, and c charts.

• They are widely used in manufacturing, healthcare, and other industries.

• Example: A hospital might use a control chart to monitor the number of patient falls p...read more

Regression and correlation are statistical methods used to analyze the relationship between two variables.

• Regression is used to predict the value of one variable based on the value of another variable.

• Correlation measures the strength and direction of the relationship between two variables.

• Regression and correlation are often used in industrial engineering to analyze data and make predictions.

• Examples of regression and...read more

Line balancing is the process of evenly distributing work among production lines to optimize efficiency.

• Identify tasks and their sequence

• Determine cycle time for each task

• Calculate the minimum number of workstations needed

• Assign tasks to workstations

• Evaluate and adjust as necessary

• Methods include longest task time, shortest task time, and ranked positional weight

• Example: A car assembly line where each workstation has a...read more

PFD stands for Process Flow Diagram, which is a graphical representation of a process.

• PFDs are used to show the flow of materials, energy, and information through a process.

• They use symbols to represent equipment, valves, instruments, and other components.

• PFDs are often used in chemical and process engineering to design and optimize processes.

• Some common symbols used in PFDs include pumps, tanks, heat exchangers, and c

PFMEA is a risk assessment tool used in industrial engineering to identify and prioritize potential failures.

• PFMEA stands for Process Failure Mode and Effects Analysis

• It is used to identify potential failures in a process and prioritize them based on their severity, occurrence, and detectability

• There are three types of PFMEA: Design FMEA, Process FMEA, and System FMEA

• RPN (Risk Priority Number) is calculated by multiply...read more

Lean is a methodology to eliminate waste and improve efficiency. 8 wastes are non-value adding activities. DMAIC is a problem-solving tool.

• Lean is a systematic approach to identify and eliminate waste in processes

• 8 wastes are defects, overproduction, waiting, non-utilized talent, transportation, inventory, motion, and extra processing

• DMAIC is a problem-solving tool used in Six Sigma methodology

• DMAIC stands for Define, ...read more