CG Power and Industrial Solutions Senior R&D Engineer Interview Questions and Answers

Q1. About my previous projects. How it is designed, developed, Moto of the project. And entire project life cycle.
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Q2. What are types of voltage regulators. Explain them.
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Q3. Working principle of Project that is developed earlier.
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Q1. What are the salary expectations and why?
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Q1. Plastic defects?
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Q2. What is molding?
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Molding is a manufacturing process where a liquid or pliable material is poured into a mold to create a specific shape.
• Molding involves heating a material until it becomes pliable, then shaping it using a mold.

• Common types of molding include injection molding, blow molding, and compression molding.

• Examples of molded products include plastic bottles, car parts, and toys.
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Q3. Plastic prevention?
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Q4. How to devloped plastic parts? what method are used?
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Plastic parts are developed using methods like injection molding, blow molding, and thermoforming.
• Injection molding is a common method where molten plastic is injected into a mold.

• Blow molding is used for hollow parts like bottles, where plastic is blown into a mold.

• Thermoforming involves heating a plastic sheet and shaping it over a mold.

• Other methods include rotational molding, extrusion, and compression molding.
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Q5. What is shrinkage in plastic?
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Shrinkage in plastic refers to the reduction in size of a plastic part after it has been molded.
• Shrinkage occurs as the plastic cools and solidifies after being injected into a mold.

• It is important to account for shrinkage when designing molds and parts to ensure proper dimensions.

• Factors affecting shrinkage include material type, mold temperature, cooling rate, and part geometry.

• Common methods to compensate for shrink...read more
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Q1. What is work of npd in industry?
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NPD in industry refers to New Product Development, which involves the process of designing, creating, and bringing new products to market.
• NPD involves identifying market opportunities and customer needs

• It includes concept development, design, prototyping, testing, and commercialization

• NPD teams often collaborate with various departments such as marketing, engineering, and manufacturing

• Successful NPD can lead to increas...read more
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Q2. How to calculate costing of complete products?
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Costing of complete products can be calculated by considering materials, labor, overhead, and profit margin.
• Calculate the cost of materials required for the product

• Estimate the labor costs involved in manufacturing the product

• Factor in overhead costs such as utilities, rent, and equipment depreciation

• Add a profit margin to cover additional expenses and generate profit

• Consider any additional costs such as shipping, pack...read more
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Q3. What is gate & runner in molding? &
Ans. 
Gate & runner in molding are channels through which molten material is injected into the mold cavity.
• Gate is the opening through which molten material enters the mold cavity

• Runner is the channel that connects the gate to the sprue or main injection point

• Proper design of gates and runners is crucial for ensuring even distribution of material and preventing defects

• Examples: Submarine gate, edge gate, hot runner system
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Q4. What is the purpose of gate & runner in molding?
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The purpose of gate & runner in molding is to control the flow of molten material into the mold cavity.
• Gate controls the flow of molten material into the mold cavity

• Runner distributes the molten material throughout the mold

• They help in achieving proper filling of the mold and reducing defects like air pockets or incomplete filling

• Different types of gates and runners are used based on the molding process and material be
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Q5. Cad test: NX Software version 12
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Not very easy nor hard

Q1. 1st angle 3rd angle drawing difference
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1st angle and 3rd angle drawings are two different methods of representing a 3D object on a 2D plane.
• 1st angle projection is commonly used in Europe and Asia, where the object is imagined to be in the first quadrant, while 3rd angle projection is commonly used in North America, where the object is imagined to be in the third quadrant.

• In 1st angle projection, the top view is placed below the front view, while in 3rd ang...read more
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Q2. Different symbols of drawing
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Different symbols used in engineering drawings represent various elements and features.
• Symbols for dimensions (e.g. diameter, length)

• Symbols for surface finish (e.g. roughness)

• Symbols for welding (e.g. fillet weld)

• Symbols for electrical components (e.g. resistor)

• Symbols for mechanical components (e.g. gear)
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Q3. Cpm pert related
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Q1. Introduction about your self
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Q2. Why you choose this job
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Basic Engineering of Mechanical

Q1. Knowledge about CAD
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Q2. Measurements usage
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Measurements are crucial in design engineering for ensuring accuracy and precision in the development process.
• Measurements are used to determine dimensions, tolerances, and material properties of components.

• They help in ensuring that the final product meets the required specifications and standards.

• Various tools such as calipers, micrometers, and gauges are used for taking measurements.

• Measurements also play a key role...read more
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There will be test containing questions aptitude and technical questions

Q1. Explain about your projects briefly
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Q2. Questions on technical subjects
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Asked about programming concepts like C, Data structures and OOPS concepts

Q1. Regarding college final projects and other relevant experience questions
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Q1. General Personal information and other skills achievements and the things mentioned in resume.
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Q1. Basic technical questions from mechanical
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Q2. Basics of mechanical engineering
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Q3. Mechanical engineering basic questions
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