Lumax Industries Associate Engineer Interview Questions and Answers

Department and work related question.

Q1. Personal information
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Q2. Education related question?
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Moderate level aptitude but cutoff was at 75%

Q1. Mainly c, aptitude
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Q1. Where are you living?
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Q2. Why are you leaving your last company?
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Q1. Circuit diagram of relay holding.
Ans. 
A relay holding circuit diagram is used to keep the relay in the energized state even after the control signal is removed.
• The circuit typically includes a holding contact that maintains the relay coil energized.

• A latching relay can also be used for holding without continuous power supply.

• Examples: ladder logic diagram with a holding contact, latching relay circuit diagram.
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Q2. What is PNP and NPN
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PNP and NPN are types of bipolar junction transistors commonly used in electronic circuits.
• PNP transistor has a layer of N-type semiconductor between two layers of P-type semiconductor, while NPN transistor has a layer of P-type semiconductor between two layers of N-type semiconductor.

• In a PNP transistor, current flows from the emitter to the base and then to the collector, while in an NPN transistor, current flows fro...read more
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Q3. How many type of sensor?
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There are various types of sensors used for different purposes.
• Temperature sensors (e.g. thermocouples, thermistors)

• Pressure sensors (e.g. piezoelectric sensors)

• Motion sensors (e.g. accelerometers, gyroscopes)

• Proximity sensors (e.g. ultrasonic sensors)

• Light sensors (e.g. photodiodes, phototransistors)
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Q4. What is PLC and full form?
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PLC stands for Programmable Logic Controller, which is a digital computer used for automation of electromechanical processes.
• PLC is used to control machinery in manufacturing processes, such as assembly lines, robotic devices, or any activity that requires high reliability control.

• It is programmed using a specialized computer language, typically ladder logic or function block diagram.

• PLCs are commonly used in industrie...read more
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Q1. Tell about the previous operational experience
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I have over 5 years of operational experience in managing teams, optimizing processes, and ensuring efficiency.
• Managed a team of 20 employees in a retail store, improving customer service and increasing sales by 15%

• Implemented new inventory management system that reduced stockouts by 20%

• Led cross-functional projects to streamline operations and reduce costs
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Q2. Discussed some case studies
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Q3. SAP transactions codes & usage
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SAP transactions codes are shortcuts to specific functions in SAP system.
• SAP transaction codes are alphanumeric codes used to access specific functions in SAP system.

• They are used to navigate quickly to desired transactions without having to go through menu paths.

• Examples include VA01 for creating a sales order, ME21N for creating a purchase order, and FB50 for posting a journal entry.
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Q4. Personal family background discussion
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Q1. Experience discussion
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Q2. Salary negotiation
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Q1. Depends on Dept. more interest comparing with techincal
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Q1. Mechanical, manufacturing,
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Q1. What was my dream for great opportunity .
Ans. 
My dream for a great opportunity is to work in a challenging and rewarding customer service role where I can make a positive impact on customers' experiences.
• I aspire to excel in providing exceptional customer service by actively listening to customers' needs and finding effective solutions.

• I dream of being part of a supportive team that values collaboration and continuous learning to enhance customer satisfaction.

• I en...read more
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Q1. General questions only
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Q1. Depth branch related questions
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