Marelli Motherson Automotive Lighting Interview Questions, Process, and Tips

Nothing much just reasoning questions

Q1. Tell something about you
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Q2. Family background
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Q1. Moulding technical
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Q1. Moulding process related
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Q1. Question of injection molding
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Q2. All question for injection molding machine
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Q3. Who to injection molding machine ?
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The injection molding machine is operated by a trained production engineer.
• The production engineer should have knowledge of the machine's operation and maintenance.

• They should be able to troubleshoot any issues that arise during production.

• The engineer should also be responsible for ensuring the machine is properly calibrated and producing quality products.

• Examples of tasks include setting up the machine, adjusting set...read more
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Q4. Which material is used in auto lighting
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Polycarbonate and acrylic are commonly used materials in auto lighting.
• Polycarbonate is a durable and impact-resistant material that is often used for headlight lenses.

• Acrylic is a lightweight and shatter-resistant material that is commonly used for taillight lenses.

• Other materials used in auto lighting include glass, aluminum, and various types of plastics.

• The choice of material depends on factors such as the type of ...read more
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Q5. H D P ka full form
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HDP stands for Hadoop Distributed File System (HDFS), Hadoop YARN, and Hadoop MapReduce.
• HDP is a software framework for distributed storage and processing of big data.

• It includes Hadoop Distributed File System (HDFS), Hadoop YARN, and Hadoop MapReduce.

• HDP is used by organizations to manage and analyze large amounts of data.

• It provides a scalable and cost-effective solution for big data processing.

• Examples of companies
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Q6. What is BMC & full form BMC
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BMC stands for Bulk Molding Compound, a thermoset plastic material used in manufacturing of various products.
• BMC is a mixture of resin, glass fibers, and other additives that are compressed and molded into various shapes.

• It is commonly used in automotive, electrical, and construction industries for making parts like electrical housings, automotive body panels, and pipe fittings.

• BMC has high strength, dimensional stabil...read more
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Q1. About yourself, why you are changing, previous company and salary expectation.
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Q1. Deep about injection molding machine, Electrical and mechanical maintenance and drawing of machines.
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Q1. What are the seven quality control tools?
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The seven quality control tools are essential techniques for problem-solving and process improvement in various industries.
• 1. Cause-and-Effect Diagram: Also known as a fishbone diagram, it helps identify root causes of a problem. Example: Analyzing reasons for production delays.

• 2. Check Sheet: A structured form for collecting and analyzing data. Example: Tracking defects in a manufacturing process.

• 3. Control Chart: A g...read more
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Q2. What is the role of Statistical Process Control in quality management?
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Statistical Process Control (SPC) monitors and controls processes using statistical methods to ensure quality and consistency.
• SPC uses control charts to track process variations over time, helping identify trends or shifts in performance.

• Example: A manufacturing line uses control charts to monitor the diameter of produced parts, ensuring they remain within specified limits.

• It helps in identifying the root causes of def...read more
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Q3. What are Cp and Cpk, and how are they used in process capability analysis?
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Cp and Cpk are metrics used to assess process capability and performance in manufacturing and quality control.
• Cp (Process Capability) measures the potential capability of a process by comparing the width of the process spread to the specification limits.

• Cpk (Process Capability Index) measures how centered the process is within the specification limits, accounting for process mean shift.

• A Cp value greater than 1 indicat...read more
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Q4. What is the difference between weight and mass?
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Weight is the force due to gravity on an object, while mass is the amount of matter in that object.
• Mass is a scalar quantity, measured in kilograms (kg), representing the amount of matter.

• Weight is a vector quantity, measured in newtons (N), representing the force of gravity on an object.

• Mass remains constant regardless of location, while weight can change based on gravitational pull (e.g., weight on Earth vs. Moon).

• Ex...read more
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Q5. What is kinetic energy?
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Kinetic energy is the energy an object possesses due to its motion, dependent on mass and velocity.
• Kinetic energy (KE) is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

• Example: A car moving at 60 km/h has more kinetic energy than a bicycle moving at 20 km/h.

• Kinetic energy increases with the square of the velocity, meaning small increases in speed result in large increases in energy.

• In spo...read more
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Q6. What is the difference between a bar graph and a histogram?
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A bar graph displays categorical data with rectangular bars, while a histogram represents the distribution of numerical data.
• Bar graphs represent discrete categories (e.g., sales by product).

• Histograms show continuous data distributions (e.g., test scores).

• In bar graphs, bars are separated; in histograms, they touch.

• Example of bar graph: Number of cars sold by brand.

• Example of histogram: Frequency of ages in a populati
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Q7. What is a Pareto chart?
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A Pareto chart is a bar graph that represents the frequency of problems or causes in descending order, highlighting the most significant factors.
• Visual representation of data, combining bars and a line graph.

• Bars show individual values in descending order, while the line shows cumulative totals.

• Helps identify the 'vital few' problems that contribute to the majority of issues (80/20 rule).

• Example: In a manufacturing pro...read more
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Q8. When calculating Process Performance (Pp) and Process Capability (Ppk), what are the key considerations?
Ans. 
Key considerations for Pp and Ppk include data distribution, sample size, and specification limits.
• Understand the difference: Pp measures potential capability, while Ppk measures actual performance considering process mean.

• Ensure data is normally distributed; if not, consider transformations or non-parametric methods.

• Sample size matters: larger samples provide more reliable estimates of process performance.

• Specificatio...read more
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Q9. What are geometrical dimensions and tolerance symbols?
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Geometrical dimensions and tolerance symbols define the allowable variations in size and shape of manufactured parts.
• Geometric Dimensioning and Tolerancing (GD&T) is a system for defining and communicating engineering tolerances.

• Symbols represent features like flatness, parallelism, and concentricity, ensuring parts fit together correctly.

• For example, a flatness symbol indicates how flat a surface must be, while a ...read more
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Q1. What is takt time.. Explain in details
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Takt time is the rate at which a product must be produced to meet customer demand.
• Takt time is calculated by dividing the available production time by the customer demand.

• It helps in determining the production rate required to meet customer demand.

• Takt time is used in lean manufacturing to optimize production processes.

• It is a key metric in achieving just-in-time (JIT) production.

• For example, if a company has 480 minut...read more
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Q2. What is role of PPC Engineer
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PPC Engineer manages and optimizes pay-per-click advertising campaigns to increase website traffic and conversions.
• Develop and implement PPC strategies

• Conduct keyword research and analysis

• Create and manage ad campaigns on various platforms

• Monitor and analyze campaign performance

• Optimize campaigns to improve ROI

• Stay up-to-date with industry trends and best practices
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Q1. Salary expectation and notice period
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Q1. PPC system and parameters
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