Tata Motors
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TOPICs were related to electric vehicles and carbon footprint
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.
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
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...
I applied via campus placement at Pimpri Chinchwad College of Engineering, Pimpri and was interviewed in Sep 2024. There were 2 interview rounds.
Simple mechanical engineering
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'...
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 (...
I applied via campus placement at Dr. B.R. Ambedkar National Institute of Technology (NIT), Jalandhar and was interviewed in Nov 2023. There were 3 interview rounds.
Normal test. Had aptitude and dsa and C++.
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...
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
MATH ROUND WAS THERE AND WAS EASY
Tata Motors interview questions for designations
BS-6 came before BS-5 due to the need for stricter emission standards and technological advancements.
BS-6 was introduced to address the growing concerns about air pollution and to meet international emission standards.
BS-6 engines are equipped with advanced technologies such as selective catalytic reduction (SCR) and diesel particulate filters (DPF) to reduce harmful emissions.
The implementation of BS-6 norms required ...
Selective Catalytic Reduction (SCR) technology is used to reduce NOx emissions.
Selective Catalytic Reduction (SCR) technology is commonly used in diesel engines to reduce NOx emissions.
SCR technology works by injecting a urea-based solution into the exhaust stream, which reacts with the NOx gases and converts them into nitrogen and water.
This technology is widely adopted in vehicles, power plants, and industrial proces...
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I applied via Campus Placement and was interviewed in Dec 2023. There was 1 interview round.
I applied via campus placement at Delhi College of Engineering (DCE), Delhi and was interviewed in Jul 2023. There was 1 interview round.
I applied via Walk-in and was interviewed before Mar 2023. There was 1 interview round.
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I applied via Campus Placement and was interviewed in Nov 2024. There were 4 interview rounds.
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