Sun Vacuum Formers Junior Mechanical Engineer Interview Questions and Answers

Easy normal quesstion basic questions

Q1. Easy questions , 1st law of thermodyanamics, more hr based
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Q2. 1st law thermodyanics
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Q3. What is turbines
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Turbines are machines that convert fluid energy into mechanical energy by using a rotor to capture the energy of a moving fluid.
• Turbines are commonly used in power plants to generate electricity from steam, water, or wind.

• There are different types of turbines such as steam turbines, gas turbines, and wind turbines.

• The rotor of a turbine is connected to a shaft which drives a generator to produce electricity.

• Turbines ar...read more
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Q4. What is conduction
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Conduction is the transfer of heat or electricity through a material without any movement of the material itself.
• Conduction occurs through direct contact between particles in a material.

• Materials with high conductivity, like metals, transfer heat or electricity more efficiently.

• Examples include a metal spoon getting hot when placed in a hot liquid, or a wire conducting electricity.

• Insulators, like rubber or wood, have ...read more
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Q5. What is convection
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Convection is the transfer of heat through a fluid (liquid or gas) by the movement of the fluid itself.
• Convection occurs when a fluid is heated, becomes less dense, and rises, while cooler fluid sinks and takes its place.

• Examples of convection include boiling water, ocean currents, and atmospheric circulation.

• Convection is an important mechanism for heat transfer in many engineering applications.
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Q1. Types of engine and whatis that
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Types of engines include internal combustion engines, steam engines, and electric engines.
• Internal combustion engines: gasoline, diesel, rotary, etc.

• Steam engines: used in locomotives, ships, and industrial settings.

• Electric engines: used in electric vehicles, trains, and some aircraft.
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Q1. About your life and your family .
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Q1. About your knowledge test
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Q1. Self intoduction
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Q1. What is your role in previous company
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Q2. How many people under your control and how you will manage
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Q3. How to improve cycle time and how to do rejection control
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To improve cycle time, focus on process optimization and efficiency. Rejection control involves identifying root causes of defects and implementing corrective actions.
• Implement lean manufacturing principles to streamline processes and reduce waste

• Utilize automation and technology to speed up production

• Regularly analyze data and performance metrics to identify bottlenecks and areas for improvement

• Train employees on best...read more
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Q4. Do you know about rework anaysis
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Rework analysis involves identifying and addressing issues in a product or process to improve efficiency and quality.
• Rework analysis is a process of examining and evaluating the reasons for rework in a project or product.

• It involves identifying root causes of defects or errors and implementing corrective actions to prevent future rework.

• Examples of rework analysis include conducting failure mode and effects analysis (F...read more
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Q5. Do you know about scrap count
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Scrap count refers to the number of defective or unusable parts produced during manufacturing.
• Scrap count is an important metric in manufacturing to track quality control and efficiency.

• It helps identify areas of improvement in the production process.

• Examples of scrap count include parts with manufacturing defects, incorrect dimensions, or damaged during production.
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Q6. Do you know about OEE and how to calculate
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OEE stands for Overall Equipment Effectiveness, a measure of how well a manufacturing process is utilized.
• OEE is calculated by multiplying Availability, Performance, and Quality percentages.

• Availability = (Operating Time / Planned Production Time) * 100

• Performance = (Ideal Cycle Time / Total Count) * 100

• Quality = (Good Count / Total Count) * 100

• OEE = Availability * Performance * Quality

• For example, if a machine operate...read more
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Q7. How to manage production loss
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Production loss can be managed by identifying root causes, implementing preventive measures, optimizing processes, and continuously monitoring performance.
• Identify root causes of production loss through root cause analysis

• Implement preventive measures such as regular maintenance, training programs, and quality control checks

• Optimize processes by streamlining workflows, improving efficiency, and reducing waste

• Continuous...read more
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Q8. Do you know about lean manufacturing
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Lean manufacturing is a production method aimed at minimizing waste and maximizing efficiency.
• Focuses on continuous improvement

• Eliminates waste in processes

• Involves just-in-time production

• Uses tools like value stream mapping and 5S

• Promotes employee involvement and empowerment
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Q9. Do you know about autonomous maintenance
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Autonomous maintenance is a maintenance strategy where operators are responsible for routine maintenance tasks.
• Autonomous maintenance involves operators taking ownership of basic maintenance tasks such as cleaning, lubricating, and inspecting equipment.

• The goal of autonomous maintenance is to prevent breakdowns and improve overall equipment effectiveness.

• Operators are trained to identify abnormalities and address them ...read more
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Q1. How many types of tryer ?
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There are two main types of tryer: single tryer and double tryer.
• Single tryer is used for determining the moisture content of a sample by drying it in an oven.

• Double tryer is used for determining the moisture content of a sample by drying it in a controlled environment with a balance to measure weight loss.

• The choice of tryer depends on the specific requirements of the analysis being performed.
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Q1. Least count of a vernier caliper, micrometer or steam turbine etc
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The least count of a measuring instrument is the smallest value that can be measured with it.
• The least count of a vernier caliper is typically 0.02 mm.

• The least count of a micrometer is typically 0.01 mm.

• The least count of a steam turbine depends on the specific turbine and its design.
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