Mahindra Tractors Intern Interview Questions and Answers

Q1. What is relay? what are different componets used in electronics.
Ans. 
A relay is an electrically operated switch. Components used in electronics include resistors, capacitors, transistors, diodes, and integrated circuits.
• Relay is an electrically operated switch used to control a circuit by a low-power signal

• Components used in electronics include resistors, capacitors, transistors, diodes, and integrated circuits

• Resistors are used to limit current flow, capacitors store and release electr...read more
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Q2. What are ICs? Also explain about your project.
Ans. 
ICs stand for Integrated Circuits, which are small electronic devices made up of multiple interconnected components.
• ICs are used in various electronic devices to perform specific functions.

• They can contain thousands to millions of transistors, resistors, capacitors, and other components.

• Examples of ICs include microprocessors, memory chips, and amplifiers.
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First round was of aptitude plus java questions

Q1. Basic js questions : diff betn == and ===, let, var,const etc
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Q2. Coding problem related to array
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GD topic was scope of organic farming in India

Q1. Technical Interview i was asked about my ongoing project what was my expertise in that project and asked about my project team related questions.
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Q2. In same interview i was asked about my future goals.
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60 questions in two sets, each set has 30 questions and 30 min to solve. one set consists of aptitude question and other set consists of technical question.

Q1. All questions are asked from my resume.
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Q1. Tell me about yourself
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Q2. What are the subjects you studied in MBA
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Normal test. Had aptitude and dsa and C++.

Q1. Queries on Projects that I have completed.
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Q2. Explain your projects.
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Q3. Why did you need to use Lidar when you already have camera.
Ans. 
Lidar provides depth information which is crucial for tasks like object detection and obstacle avoidance, which cannot be achieved with just a camera.
• Lidar provides accurate depth information which is essential for tasks like object detection and obstacle avoidance.

• Cameras alone cannot accurately determine distances to objects, especially in challenging lighting conditions.

• Combining Lidar with cameras can provide a mor...read more
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Q4. What is agile software ?
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Agile software development is a methodology that emphasizes flexibility, collaboration, and iterative development.
• Focus on delivering working software in short, iterative cycles

• Emphasizes collaboration between cross-functional teams

• Allows for flexibility and adaptability to changing requirements

• Incorporates feedback from stakeholders throughout the development process

• Common frameworks include Scrum, Kanban, and Extreme
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Q1. Basic details about me.
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Simple mechanical engineering

Q1. Stress strain curve in detail
Ans. 
Stress strain curve shows the relationship between stress and strain in a material under tension.
• Stress strain curve is a graphical representation of the relationship between stress (force per unit area) and strain (deformation) in a material.

• It typically consists of a linear elastic region, a yield point, a plastic deformation region, and ultimately failure.

• The slope of the curve in the elastic region is the material'...read more
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Q2. Laws of thermodynamics
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The laws of thermodynamics are fundamental principles that govern energy and its transformations in the universe.
• First Law: Energy cannot be created or destroyed, only transferred or converted.

• Second Law: The entropy of a closed system will always increase over time.

• Third Law: As temperature approaches absolute zero, the entropy of a system approaches a minimum value.

• Examples: A car engine converting fuel into motion (...read more
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TOPICs were related to electric vehicles and carbon footprint

Q1. Major components of electric vehicles
Ans. 
Major components of electric vehicles include battery, electric motor, power electronics, and charging system.
• Battery: Stores electrical energy to power the vehicle.

• Electric motor: Converts electrical energy into mechanical energy to drive the vehicle.

• Power electronics: Control the flow of electrical energy between the battery and motor.

• Charging system: Recharges the battery when connected to a power source.
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Q2. Cell selection process
Ans. 
Cell selection process involves the recognition and binding of specific molecules on the cell surface.
• Cells select other cells or molecules based on surface receptors

• Receptors on the cell surface bind to specific ligands

• Cell selection is crucial for processes like immune response and tissue development
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Q3. Types of motor controller
Ans. 
Motor controllers are devices that regulate the speed, torque, and direction of electric motors.
• Types include brushed DC motor controllers, brushless DC motor controllers, stepper motor controllers, and servo motor controllers.

• Brushed DC motor controllers use a commutator and brushes to control the flow of current.

• Brushless DC motor controllers use electronic commutation for more efficient operation.

• Stepper motor contr...read more
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