Carl Zeiss Quality Inspector Interview Questions and Answers

Q1. What is SPC, How we will calculate Cp and Cpk, Difference b/w sigma and Std dev, Which should be concentrate first whether Cp or Cpk
Ans. 
SPC is Statistical Process Control used to monitor and control quality. Cp and Cpk measure process capability. Sigma is population standard deviation.
• SPC is a statistical method used to monitor and control processes to ensure quality standards are met.

• Cp and Cpk are indices used to measure process capability. Cp measures how well the process fits within the specification limits, while Cpk measures how centered the proc...read more
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Q2. Drawing details GD and T., What is basic dimensions, MMC, LMC, where it will be used
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Q3. What is MSA, GAGE R and R, What is output in GRR, what will be be change based on result in GRR whether Instrument or Appraiser training, what NDC and how it will affect process
Ans. 
MSA stands for Measurement System Analysis. GAGE R&R is a method to assess measurement system variation. NDC refers to the Number of Distinct Categories.
• MSA is a statistical method used to evaluate the measurement system's ability to provide accurate and reliable data.

• GAGE R&R is a specific MSA technique used to assess the variation contributed by the measurement system itself.

• The output of GAGE R&R is typically expres...read more
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Q4. Six sigma process, Where Spc will come in Six sigma process
Ans. 
SPC (Statistical Process Control) is a key tool in the Six Sigma process for monitoring and controlling process variation.
• SPC is used to collect and analyze data in real-time to ensure that a process is stable and capable of meeting customer requirements.

• It involves the use of control charts to monitor process performance and identify any special causes of variation.

• SPC helps in identifying and addressing process issue...read more
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Q1. Introduce yourself. Explain about your previous project. Then whatever u mentioned in resume
Ans. Explain with confidence and good attitude
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Q2. They will ask everything what you mentioned in your profile
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Q1. What is a lean
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Q2. What is 7qc tool
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Q3. What is quality
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Analysis of code and review the parameters of association

Q1. Why you want to joint while having good in hand salary
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Q2. Any backlogs like suspension
Ans. 
No, I do not have any backlogs or suspensions.
• I do not have any backlogs or suspensions in my work history.

• I have consistently met deadlines and quality standards in my previous roles.

• I have never been suspended or faced any disciplinary actions in my career.
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Q1. Explain your framework
Ans. 
My framework is a hybrid framework that combines data-driven and keyword-driven approaches for efficient testing.
• Combines data-driven and keyword-driven testing

• Uses reusable test scripts and data sets

• Supports both manual and automated testing

• Provides detailed test reports for analysis
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Q2. Why we need github/bitbucket
Ans. 
Github/Bitbucket are essential for version control, collaboration, code review, and project management in software development.
• Facilitates version control by tracking changes made to codebase

• Enables collaboration among team members by providing a centralized platform for sharing code

• Allows for code review process to ensure quality and consistency

• Provides project management tools like issue tracking and project boards

• In...read more
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Q1. Difference between sanity and smoke
Ans. 
Sanity testing is a narrow and deep testing approach to check if the specific functionality is working fine after changes, while smoke testing is a broad and shallow testing approach to check if the software build is stable enough for further testing.
• Sanity testing focuses on specific functionality, smoke testing checks overall stability

• Sanity testing is usually performed after a specific change, smoke testing is perfo...read more
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Q2. Difference between regression n retesting
Ans. 
Regression testing is testing the entire application after changes, while retesting is testing specific areas after fixes.
• Regression testing is done to ensure that new code changes do not affect existing functionality.

• Retesting is done to verify that a specific bug or issue has been fixed.

• Regression testing involves running the entire test suite, while retesting focuses on specific test cases.

• Example: After fixing a bu...read more
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Q3. Find repetitive words in string program
Ans. 
Program to find repetitive words in a string
• Split the string into words using a delimiter like space

• Create a hashmap to store word frequencies

• Iterate through the words and update the hashmap

• Identify words with frequency greater than 1 as repetitive
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Q1. Field related Experience questions & basic technical knowledge will be helpful to us
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