CG Power and Industrial Solutions Design Engineer Interview Questions and Answers

Q1. Plastic defects?
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Q2. What is molding?
Ans. 
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?
Ans. 
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?
Ans. 
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?
Ans. 
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?
Ans. 
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?
Ans. 
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
Answered by AI
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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
Ans. 
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
Ans. 
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. About past experience About yourself Basics of engineering Counter question according to your answers
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Q1. Salary expectation
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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
Ans. 
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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Q1. Plastic defects?
Add your answer
Q2. What is molding?
Ans. 
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.
Answered by AI
Add your answer
Q3. Plastic prevention?
Add your answer
Q4. How to devloped plastic parts? what method are used?
Ans. 
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.
Answered by AI
Add your answer
Q5. What is shrinkage in plastic?
Ans. 
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
Answered by AI
Add your answer

Q1. What is work of npd in industry?
Ans. 
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
Answered by AI
Add your answer
Q2. How to calculate costing of complete products?
Ans. 
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
Answered by AI
Add your answer
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
Answered by AI
Add your answer
Q4. What is the purpose of gate & runner in molding?
Ans. 
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
Answered by AI
Add your answer
Q5. Cad test: NX Software version 12
Add your answer

Not very easy nor hard

Q1. 1st angle 3rd angle drawing difference
Ans. 
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
Answered by AI
Add your answer
Q2. Different symbols of drawing
Ans. 
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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Paper test given to candidates

Q1. What is your name
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Q2. Angke of projection explain
Ans. 
Angle of projection refers to the angle at which an object is projected or launched into the air.
• It is the angle between the horizontal line and the direction in which the object is projected.

• The angle of projection affects the range and height of the projectile.

• For maximum range, the angle of projection should be 45 degrees.

• For maximum height, the angle of projection should be 90 degrees (vertical).
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Q3. Stress strain defination and curve
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Q4. Modes of heat transfer
Ans. 
Heat transfer occurs through conduction, convection, and radiation.
• Conduction: Heat transfer through direct contact between materials (e.g. touching a hot pan)

• Convection: Heat transfer through the movement of fluids or gases (e.g. boiling water)

• Radiation: Heat transfer through electromagnetic waves (e.g. feeling the warmth of the sun)
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Q5. Angle of projection
Ans. 
Angle of projection refers to the angle at which an object is launched into the air.
• Angle of projection affects the range and height of the projectile.

• The optimal angle of projection for maximum range is 45 degrees.

• Different angles of projection result in different trajectories of the projectile.

• The angle of projection is measured from the horizontal axis.
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