Dee Piping System Quality Engineer Interview Questions, Process, and Tips

Q1. Difference b/w power piping and process piping
Ans. 
Power piping is used in power plants to transport steam, water, and other fluids at high temperatures and pressures, while process piping is used in industrial processes to transport chemicals, gases, and liquids.
• Power piping is typically found in power plants, including nuclear, coal, and gas-fired plants.

• Process piping is used in various industries such as oil and gas, chemical, pharmaceutical, and food processing.

• Po...read more
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Q2. Latest addition of ASME B16.9
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The latest addition of ASME B16.9 includes updates to dimensions, tolerances, materials, and testing requirements for factory-made wrought buttwelding fittings.
• The latest edition of ASME B16.9 includes revisions to dimensions and tolerances for buttwelding fittings.

• Updates may also cover materials specifications and testing requirements for these fittings.

• It is important for quality engineers to stay updated with the l...read more
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Q3. Thickness tolerance of b16.9
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The thickness tolerance of b16.9 refers to the acceptable range of deviation in thickness for fittings manufactured according to this standard.
• The thickness tolerance for b16.9 fittings is typically specified by the manufacturer or in the relevant industry standards.

• It is important to adhere to the specified thickness tolerance to ensure proper fit and functionality of the fittings.

• For example, a b16.9 elbow may have a...read more
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Q4. Types of welding defects
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Types of welding defects include porosity, undercutting, incomplete fusion, and cracks.
• Porosity: caused by gas entrapment during welding process

• Undercutting: excessive melting of base metal along the edges of the weld

• Incomplete fusion: lack of fusion between the weld metal and base metal

• Cracks: can be caused by rapid cooling or stress during welding
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Q5. Material grades
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Q1. Last company related questions
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Q2. Discuss salary package
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General math and reasoning

Q1. Material codes as per section 2
Ans. 
Material codes are used to identify and classify materials as per section 2.
• Material codes are alphanumeric codes used to identify and classify materials.

• These codes are used to ensure consistency and accuracy in material identification.

• Section 2 of a document or standard typically outlines the material codes to be used.

• Examples of material codes include ASTM, AISI, and SAE codes for metals.

• Material codes may also incl...read more
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Q2. General quality tools used
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General quality tools include statistical process control, root cause analysis, Pareto charts, and fishbone diagrams.
• Statistical process control helps monitor and control processes to ensure they are within acceptable limits.

• Root cause analysis is used to identify the underlying cause of a problem and develop solutions to prevent it from recurring.

• Pareto charts are used to identify the most common causes of problems an...read more
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Q3. Non conformance handling mechanism
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Q4. Spool management handling on work completion
Ans. 
Spool management is crucial for work completion in quality engineering.
• Spool management involves tracking and organizing the flow of materials and information in a manufacturing process.

• It ensures that the right materials are available at the right time and in the right quantity.

• Effective spool management can reduce waste, improve efficiency, and increase productivity.

• Examples of spool management tools include Kanban b...read more
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Q5. Workforce handling and dealing
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Q1. Basic mechanical mettalurgy question
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