Kalpa Electrikal Electrical Design Engineer Interview Questions and Answers

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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Q1. What is Transformer?
Ans. 
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Consists of two coils of wire, known as primary and secondary coils

• Works on the principle of electromagnetic induction

• Used to step up or step down voltage levels in electrical circuits

• Commonly used in power distribution systems
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Q2. What is transformer Protection
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Transformer protection refers to the measures taken to prevent damage to transformers from faults or abnormal operating conditions.
• Transformer protection devices include overcurrent relays, differential relays, and Buchholz relays.

• Overcurrent relays protect against overloads and short circuits.

• Differential relays compare the current entering and leaving the transformer to detect internal faults.

• Buchholz relays detect g...read more
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Electrical engineering project

Q1. Technical and HR related questions please 🙏🥺
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Q2. Technical and HR related questions please
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Q1. Your personal information
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Q2. Why did you choose Electrical Engineering?
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I chose Electrical Engineering because of my passion for understanding and working with technology.
• Fascination with technology and how things work

• Interest in problem-solving and innovation

• Desire to contribute to advancements in the field

• Enjoyment of hands-on projects and experimentation
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Q1. You have any experience
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Q2. No, I didn't have any experience
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71.72% in electrical engineering diploma