Medha Servo Drives PCB Layout Design Engineer Interview Questions and Answers

Q1. What is difference between first projection and third projection?
Ans. 
First projection is a front view of an object, while third projection is a side view.
• First projection shows the front view of an object, while third projection shows the side view.

• First projection is typically labeled as 'F' on engineering drawings, while third projection is labeled as 'T'.

• First projection is used to show the overall shape and size of an object, while third projection is used to show the depth and heig
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Q2. Ask about last year project.
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Q3. Tell me about yourself?
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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
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Q5. Cad test: NX Software version 12
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Q1. Question on steel structure design and analysis
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Q2. What is compression members?
Ans. 
Compression members are structural elements subjected to axial compressive forces.
• Compression members are used in buildings, bridges, and other structures to support loads in compression.

• Common examples include columns, struts, and trusses.

• The design of compression members involves considerations such as buckling, stability, and material strength.
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Q3. What is tension members?
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Q4. Moment connection
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Q5. Slenderness ratio and codes used
Ans. 
Slenderness ratio is a measure of a structural element's stability under compression, and codes such as ACI, AISC, and Eurocode are commonly used in design.
• Slenderness ratio is the ratio of the effective length of a column to its radius of gyration.

• Different codes have different criteria for slenderness ratio limits to ensure structural stability.

• Examples of codes used for slenderness ratio calculations include ACI (Am...read more
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Design and analysis of supporting steel structure

Q1. Work flow of pcb design
Ans. 
PCB design workflow involves schematic design, component placement, routing, design verification, and manufacturing.
• Start with schematic design to define the circuit connections

• Place components on the board layout

• Route traces to connect components based on design rules

• Perform design verification to check for errors and signal integrity

• Prepare design files for manufacturing
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Q2. Drc error and componrnt placement
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Q1. About yourself and overall personallity
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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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Questions from general knowledge apti

Q1. Technical questions related to work and study
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Q1. Technical+ Aptitude+software all concluded in this round
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Q1. Salary discussion, company details etc
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