SAL Automotive R&D Engineer Interview Questions and Answers

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Q1. Questions related to Tyre compounding and testing
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Q2. Describe Previous job responsibilities, experience and work culture ?
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Q3. Tell us about future goals ?
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Q1. About project work and personal details
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Q1. Plastic parts related only?
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Q2. Shrinkage of plastic part?
Ans. 
Shrinkage of plastic part is the reduction in size of a plastic component during cooling after molding.
• Shrinkage occurs due to the cooling process after the plastic part is molded.

• Factors affecting shrinkage include material type, mold design, processing conditions, and part geometry.

• Shrinkage is typically expressed as a percentage of the original dimensions.

• Compensating for shrinkage is important in designing molds an...read more
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Q1. What is the relay
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A relay is an electrically operated switch that uses an electromagnet to mechanically operate a switch.
• Relays are used to control high power circuits with low power signals

• They are commonly used in automotive, industrial, and household applications

• Relays can be classified based on their operation, such as electromechanical relays or solid-state relays
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Q2. Ohm's law and current
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Ohm's law states that the current flowing through a conductor is directly proportional to the voltage across it, given constant resistance.
• Ohm's law equation: V = I * R (voltage = current * resistance)

• Current is the flow of electric charge through a conductor

• Higher voltage leads to higher current flow, given constant resistance

• Lower resistance leads to higher current flow, given constant voltage
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Q1. Basics of CAD software.
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Q2. About tools part design assembly and gsd
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Q3. Basic of plastic defects
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Q1. Explain various GD&T
Ans. 
Geometric Dimensioning and Tolerancing (GD&T) is a system for defining and communicating engineering tolerances.
• GD&T is used to specify the allowable variations in form, size, and orientation of features on a part.

• It uses symbols, such as concentricity, flatness, and perpendicularity, to communicate the desired tolerances.

• GD&T helps ensure that parts fit together properly and function as intended.

• Examples of GD&T symbo...read more
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Q2. Explain DFM, DFS, DFA
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DFM, DFS, and DFA stand for Design for Manufacturing, Design for Service, and Design for Assembly, respectively.
• DFM focuses on designing products that are easy and cost-effective to manufacture.

• DFS focuses on designing products that are easy to service and maintain.

• DFA focuses on designing products that are easy to assemble.

• Consideration of DFM, DFS, and DFA principles can lead to more efficient and cost-effective prod...read more
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Q1. How to add connector in CAptila harness
Ans. 
To add a connector in CAptila harness, you need to use the appropriate tool and follow specific steps.
• Open the CAptila harness design software

• Select the location where you want to add the connector

• Choose the type of connector from the library

• Place the connector in the desired location

• Connect the wires to the connector pins

• Verify the connection and run any necessary simulations
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Q2. Press O then you can directly add connector
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Q1. Asked questions related to few mechanical engineering topics
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Q1. Why do you want to switch?
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