Crestia Polytech Interview Questions and Answers

Q1. Tell me about yourself.
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Q2. What are your qualifications?
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Q3. How many years of experience do you have, and what was your role in your previous company?
Ans. 
I have 3 years of experience as a Junior Engineer in my previous company.
• 3 years of experience as a Junior Engineer

• Responsible for production line maintenance and troubleshooting

• Collaborated with team members to improve production efficiency
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Q4. What was your plant's process in your industry?
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Our plant's process involved raw material procurement, production planning, manufacturing, quality control, and packaging.
• Raw material procurement from suppliers

• Production planning to optimize efficiency

• Manufacturing process including assembly and testing

• Quality control checks at various stages

• Packaging of finished products for distribution
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Q5. What is the role of an extruder in the LLDPE/HDPE plant processing?
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An extruder is a key equipment in LLDPE/HDPE plant processing, responsible for melting and shaping plastic resin into a continuous profile.
• Melts plastic resin using heat and pressure

• Shapes the molten resin into a continuous profile

• Controls the temperature and pressure to ensure proper extrusion

• Plays a crucial role in determining the final properties of the plastic product

• Examples: Single screw extruder, Twin screw extr
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Q1. What is Hydrostatic pressure?
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Hydrostatic pressure is the pressure exerted by a fluid at equilibrium due to the force of gravity.
• Hydrostatic pressure increases with depth in a fluid

• It is calculated as the product of the fluid density, acceleration due to gravity, and depth

• Hydrostatic pressure is important in various fields such as fluid mechanics, engineering, and geology
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Q2. Calculate the quantity of air in room?
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The quantity of air in a room can be calculated by multiplying the room's length, width, and height.
• Calculate the volume of the room by multiplying its length, width, and height

• Use the formula: Volume = Length x Width x Height

• Convert the volume to the quantity of air by considering the density of air (typically around 1.225 kg/m^3)
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Q1. Mechanical Engineer technical
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Q2. Vacuum place are welding possible??
Ans. 
Yes, welding in a vacuum is possible.
• Welding in a vacuum is possible because the absence of air prevents oxidation of the materials being welded.

• Specialized equipment and techniques are required for welding in a vacuum to ensure proper bonding of materials.

• Examples of welding in a vacuum include aerospace components and certain types of scientific equipment.
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Q1. Any technical questions
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Q2. As well as engineer drawing
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Manufacturing products are used in human life....

Q1. What is the purpose of design?
Ans. 
The purpose of design is to create solutions that are functional, aesthetically pleasing, and user-friendly.
• Design serves to solve problems and meet specific needs.

• It involves creating products, services, or experiences that are visually appealing and engaging.

• Good design enhances usability and user experience.

• Design can communicate a brand's identity and values effectively.

• Examples include product packaging that stand...read more
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Q2. What is 3Ds max?
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3Ds Max is a professional 3D computer graphics program used for creating 3D animations, models, games, and visual effects.
• 3Ds Max is developed and produced by Autodesk.

• It is widely used in the entertainment industry for creating movies, TV shows, and video games.

• Users can create realistic scenes, characters, and animations using 3Ds Max.

• It offers a wide range of tools for modeling, texturing, lighting, and rendering.

• 3D...read more
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Q3. How to use 3Ds max?
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3Ds Max is a software used for 3D modeling, animation, and rendering.
• Learn the basics of the interface and tools

• Practice creating simple 3D models like a cube or sphere

• Experiment with different materials and textures

• Explore animation techniques such as keyframing and rigging

• Understand lighting and rendering settings for realistic results
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Q4. What is the benefits of AutoCAD?
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AutoCAD allows for precise and efficient creation of technical drawings and designs.
• AutoCAD enables users to create accurate 2D and 3D drawings and models.

• It helps in improving productivity by automating repetitive tasks and providing a wide range of tools for design.

• AutoCAD facilitates collaboration by allowing easy sharing and editing of design files.

• The software offers customization options to tailor the interface a...read more
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Q5. Why we using V ray in 3Ds max?
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V-Ray is a popular rendering engine used in 3Ds Max for creating high-quality photorealistic images and animations.
• V-Ray offers advanced lighting and shading tools for realistic rendering

• It provides a wide range of materials and textures to enhance visual quality

• V-Ray's efficient algorithms help in reducing render times

• It supports various effects like global illumination, caustics, and ambient occlusion

• V-Ray is widely ...read more
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Q1. What is the work?
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Q2. How hours is duty time?
Ans. 
The duty time for Maintenance Fitter varies depending on the company and specific job requirements.
• Duty time for Maintenance Fitter can range from 8 to 12 hours per day.

• Some companies may require overtime or on-call duty during weekends or holidays.

• Shift work may also be common in certain industries, leading to varying duty hours.

• It is important to clarify the specific duty time expectations during the interview proces
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Q3. What is facility provided by company
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Q4. How many employees in this company?
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Q5. What is the turn over of company?
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The turnover of the company is approximately 10% annually.
• The turnover rate of a company refers to the percentage of employees who leave the company within a certain period of time.

• A turnover rate of 10% annually is considered relatively low and indicates a stable workforce.

• Factors such as company culture, compensation, and job satisfaction can impact turnover rates.
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Q1. Tell me about your last experience 1
Ans. 
I led a team in streamlining operations and implementing cost-saving measures.
• Led a team in identifying inefficiencies in processes

• Implemented new procedures to improve efficiency

• Reduced operational costs by 15% through strategic planning

• Collaborated with cross-functional teams to ensure smooth operations
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Q2. Why are you joining us
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I am joining your organization because of the exciting opportunities for growth and the strong company culture.
• Opportunities for career advancement

• Strong company culture

• Exciting projects and challenges

• Desire to contribute to a successful team
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Q1. Which problems are coming in injection molding Machine mostly and how is it control ?
Ans. 
Common problems in injection molding machines include overheating, warping, and flash. These can be controlled through proper maintenance and monitoring.
• Overheating can be caused by a malfunctioning cooling system or excessive cycle times. Regular maintenance and monitoring of temperature settings can help control this issue.

• Warping occurs when the molded part cools unevenly, leading to distortion. Proper mold design, ...read more
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Q2. Volve functioning and major problem of volve?
Ans. 
Volve is a type of valve used to control the flow of fluids in a system.
• Volve functions by opening and closing to allow or restrict the flow of fluids.

• Major problems with volve include leakage, blockage, and malfunctioning due to wear and tear.

• Examples of volve include ball valves, gate valves, and butterfly valves.
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Q1. Production targets
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Production targets are set goals for the quantity and quality of products to be produced within a specific timeframe.
• Production targets are typically set based on market demand, available resources, and production capacity.

• Targets should be realistic, achievable, and aligned with overall business objectives.

• Regular monitoring and adjustment of targets may be necessary to ensure optimal production efficiency.

• Examples: S...read more
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Q2. Quality products
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Q3. Empty tube making
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Q1. What about your self
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Q2. Cpk and cpk difference
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Cpk and cpk are statistical measures used to assess the capability of a process to meet specifications.
• Cpk measures how well a process can produce output within specification limits.

• Cpk takes into account both the mean and the variation of the process.

• Cpk is calculated as the minimum of (USL - mean) / (3 * standard deviation) and (mean - LSL) / (3 * standard deviation).

• Cpk should be at least 1.33 to indicate a capable ...read more
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Q3. Proces audit defination
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Q4. Product audit defination
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Q5. IATF and ISO documentation
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