Lakshmi Machine Works Junior Engineer Interview Questions, Process, and Tips

Q1. What is difference between RTD and thermocouple used
Ans. 
RTD measures temperature using resistance change, while thermocouple uses voltage change.
• RTD stands for Resistance Temperature Detector, while thermocouple generates voltage based on temperature difference.

• RTDs are more accurate and stable compared to thermocouples.

• RTDs have higher initial cost but lower long-term maintenance cost.

• Thermocouples are more rugged and can withstand higher temperatures than RTDs.

• Example: RT...read more
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Q2. What is the PLC and DCS system
Ans. 
PLC and DCS systems are control systems used in industrial automation to monitor and control processes.
• PLC stands for Programmable Logic Controller, used for controlling machinery and processes in manufacturing.

• DCS stands for Distributed Control System, used for controlling complex processes across multiple locations.

• PLCs are typically used for discrete control applications, while DCS systems are used for continuous co...read more
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Q3. What is the AC And DC drive
Ans. 
AC and DC drives are types of electrical drives used to control the speed and torque of electric motors.
• AC drive controls the speed of an AC motor by varying the frequency of the electrical supply.

• DC drive controls the speed of a DC motor by varying the voltage supplied to the motor.

• AC drives are more commonly used in industrial applications due to their efficiency and flexibility.

• DC drives are often used in applicatio...read more
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Q4. What do you understand by 4 wire and 2 wire
Ans. 
4 wire and 2 wire are configurations used in electrical circuits for measuring resistance.
• 4 wire configuration is used for accurate resistance measurements by eliminating lead resistance

• 2 wire configuration is simpler but less accurate due to lead resistance affecting measurements

• Examples: 4 wire used in precision instruments like multimeters, 2 wire used in basic circuit testing
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Q1. Tell about your self?
Ans. Good morning sir & mam. First of All , thanks for giving me this opportunity to introduce myself. My name is "Dinesh Bhuyan"and iam come from cuttack, currently staying in Kolkata. I have completed in bord of secondary education in 2017. After completed in Diploma in mechanical engineer at GIET(poly) Jagatpur Cuttack Orissa in 2022.& Currently I'm pursuing B-tech in KIST technology in (BHUBANESWAR) in mechani...read more
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Q2. How carrier gole ?
Ans. 
Career goals are personal objectives and ambitions that an individual sets for their professional growth and development.
• Set specific and achievable career goals

• Regularly review and adjust goals as needed

• Seek opportunities for skill development and advancement

• Network with professionals in the field

• Stay updated on industry trends and technologies
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Q1. Electric motor winding process
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Technical aptitude math general science social science

Q1. Introduction and cnc programming
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Q1. What is last year project?
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Q2. What do you know about production and Manufacturing?
Ans. 
Production and manufacturing involve the process of creating goods or products through various methods and techniques.
• Production involves the actual creation of goods or products using raw materials and machinery.

• Manufacturing is the process of converting raw materials into finished products through various stages like processing, assembly, and packaging.

• Quality control is an essential aspect of production and manufact...read more
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Q3. List of manufacturing instruments and their working?
Ans. 
Manufacturing instruments are tools used in the production process to ensure quality and efficiency.
• Calipers - used for measuring dimensions of objects

• Micrometer - used for precise measurements

• Gauge blocks - used for calibration

• Spectrophotometer - used for analyzing materials

• CMM (Coordinate Measuring Machine) - used for dimensional measurements
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Q1. Company timings and rules
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Q2. Salary discussion
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Maths are important in aptitude test

Q1. Function of eliminator
Ans. 
Eliminator is a device used to remove liquid droplets or solid particles from a gas stream.
• Function is to separate liquid droplets or solid particles from a gas stream

• Helps in improving the quality of the gas stream

• Commonly used in industries like petrochemical, pharmaceutical, and power plants
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Q2. Types of cooling towers
Ans. 
Cooling towers are heat removal devices used to transfer process waste heat to the atmosphere.
• Types of cooling towers include natural draft, mechanical draft, crossflow, and counterflow

• Natural draft cooling towers use the stack effect to draw air through the tower

• Mechanical draft cooling towers use fans to force air through the tower

• Crossflow cooling towers have air flow perpendicular to the water flow

• Counterflow cooli...read more
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Q1. Quality control
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Q2. Total quality control
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Q3. Refrigeration VCRC system
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Q4. Vapour absorption system
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Q5. What is design or design procedure
Ans. 
Design or design procedure refers to the process of creating a plan or blueprint for a product, system, or structure.
• Design involves identifying requirements and constraints

• Creating conceptual sketches or models

• Iteratively refining the design based on feedback

• Testing and validating the design before implementation
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Q6. What is design
Ans. 
Design is the process of creating a plan or solution to address a specific problem or need.
• Design involves identifying requirements and constraints

• It includes creating sketches, prototypes, and mockups

• Design considers functionality, aesthetics, usability, and feasibility

• Examples: architectural design, graphic design, product design
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Q7. Design for procedure
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Designing a procedure involves outlining the steps and requirements for completing a task or achieving a goal.
• Identify the goal or objective of the procedure

• Break down the steps needed to achieve the goal

• Consider any resources or tools required

• Include any safety precautions or guidelines

• Review and test the procedure for effectiveness
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Q1. Technically about company like safety..
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Q2. What is 5s and devine
Ans. 
5S is a methodology used to organize and maintain a clean and efficient workplace.
• 5S stands for Sort, Set in Order, Shine, Standardize, and Sustain.

• It involves organizing and labeling tools and materials, cleaning and maintaining equipment, and creating a culture of continuous improvement.

• Example: A factory implementing 5S might label all tools and materials, create a designated storage area for each item, and regularl...read more
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