Krishna Maruti Interview Questions and Answers for Experienced

Q1. What is quality and production?
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Q2. Tell me your introduction and your skill
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Q1. What is the different between laminar and turbulent flow?
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Q2. What is mechanical refrigeration?
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Mechanical refrigeration is a process that removes heat from a designated area to lower its temperature using mechanical means.
• Uses a refrigerant to absorb and release heat.

• Commonly found in air conditioning systems and refrigerators.

• Operates on the principles of thermodynamics, particularly the refrigeration cycle.

• Examples include vapor-compression and absorption refrigeration systems.
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Q1. Can you provide an introduction about yourself?
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Experienced engineer with a background in mechanical and electrical engineering, specializing in project management and problem-solving.
• Bachelor's degree in Mechanical Engineering from XYZ University

• 5+ years of experience working in the automotive industry

• Proficient in CAD software such as SolidWorks and AutoCAD

• Led a team of engineers to successfully launch a new product line
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Q2. What is the organizational structure of the toolroom?
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The toolroom is typically organized in a hierarchical structure with a manager overseeing toolmakers and machinists.
• Typically led by a Toolroom Manager who oversees the operations

• Toolmakers and machinists report to the Toolroom Manager

• May have specialized teams for different types of tools or machinery

• Collaborates closely with engineering and production departments
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Q1. Organization structure
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Q2. What is the process of mold maintenance?
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Mold maintenance involves regular cleaning, inspection, and repair of molds used in manufacturing processes.
• Regularly clean molds to prevent buildup of residue or contaminants

• Inspect molds for wear and tear, cracks, or other damage

• Repair any issues found during inspection to ensure molds function properly

• Store molds properly when not in use to prevent damage or contamination
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Encourage a positive culture that fosters the development of new ideas and activities for improvement.

Q1. What is the difference between corrective action and preventive action?
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Corrective action is taken to address an existing issue, while preventive action is taken to avoid potential issues in the future.
• Corrective action is reactive, addressing problems that have already occurred.

• Preventive action is proactive, aiming to prevent problems from happening in the first place.

• Corrective action focuses on fixing the root cause of a problem.

• Preventive action focuses on identifying and eliminating ...read more
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Q2. What are the differences between preventive maintenance and predictive maintenance?
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Preventive maintenance is scheduled maintenance performed on a regular basis to prevent breakdowns, while predictive maintenance uses data and analytics to predict when equipment will fail.
• Preventive maintenance is scheduled at regular intervals to prevent breakdowns.

• Predictive maintenance uses data and analytics to predict when equipment will fail.

• Preventive maintenance is time-based, while predictive maintenance is c...read more
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Q1. What is breakdown maintenance?
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Breakdown maintenance is a type of maintenance where equipment is only repaired after it has broken down.
• Breakdown maintenance is reactive in nature, as repairs are only done after a breakdown occurs.

• It can lead to increased downtime and production losses.

• This type of maintenance is usually more costly compared to preventive maintenance.

• Examples include fixing a machine only when it stops working or repairing a vehicle...read more
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Q2. What is the frequency of preventive maintenance?
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The frequency of preventive maintenance varies depending on the equipment and industry standards.
• Frequency of preventive maintenance is typically determined by equipment manufacturer recommendations.

• Some industries may have specific regulations or standards that dictate the frequency of preventive maintenance.

• Factors such as usage, environmental conditions, and criticality of the equipment can also influence the freque...read more
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Q1. Lifter pad and lifter different
Ans. 
Lifter pad and lifter are different components used in mechanical systems.
• Lifter pad is a component used to support and lift heavy objects, while lifter is a device used to lift and move objects vertically.

• Lifter pads are often made of rubber or other materials to provide cushioning and grip, while lifters can be hydraulic, pneumatic, or mechanical.

• Lifter pads are stationary and provide a stable base for lifting, while...read more
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Q2. What is the frequency of tool life
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The frequency of tool life refers to how often a tool needs to be replaced or maintained.
• Frequency of tool life is determined by factors such as material being worked on, cutting speed, and tool material.

• Higher cutting speeds or harder materials may require more frequent tool changes.

• Regular maintenance and monitoring can help extend tool life and reduce frequency of replacements.
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Q1. Different w/b liquid coating and powder coating
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Water-based liquid coatings use water as a solvent, while powder coatings are dry powders that require heat to cure.
• Water-based coatings are environmentally friendly and have low VOC emissions.

• Powder coatings provide a thicker, more durable finish and are often used for metal surfaces.

• Examples of water-based coatings include acrylics and latex paints.

• Powder coatings are commonly used in automotive and appliance industr...read more
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Q2. Minimum powder coating DFT 20 mc Highest powder coating??
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Understanding powder coating thickness: minimum DFT is 20 microns; maximum varies based on application and material.
• DFT stands for Dry Film Thickness, crucial for durability and appearance.

• Minimum DFT of 20 microns ensures adequate protection against corrosion.

• Maximum DFT can reach up to 100 microns or more, depending on the coating type.

• For example, automotive parts may require higher DFT for better wear resistance.

• Ex...read more
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Q3. Different between zinc phosphate coating and iron phosphate coating
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Zinc phosphate coating offers superior corrosion resistance compared to iron phosphate coating, which is primarily for surface preparation.
• Zinc phosphate provides better corrosion resistance than iron phosphate.

• Iron phosphate is often used as a pre-treatment before painting.

• Zinc phosphate coatings are commonly used in automotive and aerospace industries.

• Iron phosphate is typically used in household appliances and metal...read more
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Q1. 7qc tools & describe it as per example
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7QC tools are a set of quality control tools used for process improvement and problem-solving.
• Check sheet: Used to collect and analyze data, such as tallying defects in a manufacturing process.

• Pareto chart: Helps identify the most significant factors contributing to a problem, based on the 80/20 rule.

• Cause and effect diagram (Fishbone diagram): Used to identify and analyze potential causes of a problem.

• Histogram: Repre...read more
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Q2. Difference between QA & QC
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QA focuses on preventing defects in the process, while QC focuses on identifying defects in the product.
• QA is process oriented, focusing on preventing defects by improving processes and procedures.

• QC is product oriented, focusing on identifying defects through testing and inspection.

• QA involves activities like reviews, audits, and process improvements.

• QC involves activities like testing, inspections, and quality contro...read more
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Q3. Define of FMEA TYPE
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FMEA stands for Failure Modes and Effects Analysis, a systematic method for identifying and preventing potential failures in a system.
• FMEA is a structured approach to identifying and prioritizing potential failure modes in a system.

• It involves analyzing the potential effects of these failures and developing mitigation strategies.

• FMEA helps in improving the reliability, safety, and quality of a system or process.

• There a...read more
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Q4. Process & product audit type of poka yoke
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Process & product audit type of poka yoke ensures errors are prevented during audits.
• Poka yoke in process audit involves using checklists to ensure all steps are followed correctly

• Poka yoke in product audit involves using sensors to detect defects before they occur

• Examples include using color-coded labels to prevent mix-ups in audits
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Q5. 8D Capa, 5S, pervios company job profile and DWM
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