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I applied via Recruitment Consulltant and was interviewed in Oct 2024. There were 2 interview rounds.
Electrical machines are devices that convert electrical energy into mechanical energy or vice versa.
Types include electric motors, generators, transformers, and alternators
Electric motors convert electrical energy into mechanical energy to perform work
Generators convert mechanical energy into electrical energy
Transformers transfer electrical energy between circuits
Alternators convert mechanical energy into alternating
Power system working involves generation, transmission, distribution, and utilization of electrical energy.
Power generation from sources like coal, hydro, nuclear, solar, wind, etc.
Transmission of power through high voltage lines to substations.
Distribution of power to homes and businesses through transformers and distribution lines.
Utilization of power by various electrical devices and appliances.
Monitoring and contro...
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posted on 28 Jul 2023
I applied via Campus Placement and was interviewed in Jan 2023. There were 3 interview rounds.
Prepare Basics of Apitude, and don't give unwanted answer
I applied via Campus Placement and was interviewed in May 2024. There were 4 interview rounds.
It was a test combined with technical and aptitude knowledge.
My GD topic was Education in India vs Education in Abroad.
I was interviewed before Apr 2023.
Online aptitude test was easy. Questions were asked on electrical only.
Types of rotors in generators include salient pole rotor and cylindrical rotor.
Salient pole rotor has projecting poles with concentrated windings, used in low-speed applications.
Cylindrical rotor has distributed windings and is used in high-speed applications.
Other types include wound rotor and squirrel cage rotor.
Wound rotor has three-phase windings connected to slip rings, used in variable speed applications.
Squirrel...
Star delta starter is a type of reduced voltage starter used for starting high power motors.
Consists of two contactors - one for star connection and one for delta connection
Reduces starting current and torque on the motor
Commonly used in industrial applications for motors above 5 HP
Types of transformer losses include copper losses, iron losses, and stray losses.
Copper losses: Also known as I^2R losses, occur in the copper windings of the transformer due to resistance.
Iron losses: Also known as core losses, occur in the transformer core due to hysteresis and eddy currents.
Stray losses: Occur due to leakage flux and imperfect magnetic coupling between the windings.
Examples: An example of copper los...
A generator works on the principle of electromagnetic induction to convert mechanical energy into electrical energy.
Generators use a magnetic field and a conductor to create a flow of electrons, generating electricity.
When the conductor moves through the magnetic field, it induces a current in the conductor.
This current is then collected and transferred through wires to power electrical devices.
Examples of generators i...
Common aptitude questions are asked in first round
I applied via Campus Placement
I want to join Siemens because of its reputation for innovation, global presence, and opportunities for career growth.
Siemens is known for its cutting-edge technology and innovative solutions in the electrical industry.
I am impressed by Siemens' global presence and the opportunity to work on projects around the world.
I believe Siemens offers great opportunities for career growth and development in the electrical field.
My strengths include problem-solving skills and attention to detail. My weaknesses include public speaking and time management.
Strengths: problem-solving skills
Strengths: attention to detail
Weaknesses: public speaking
Weaknesses: time management
I applied via Campus Placement and was interviewed in Sep 2024. There was 1 interview round.
IDMT relay is used for overcurrent protection while transformer differential relay is used for differential protection.
IDMT relay operates based on inverse time-current characteristic curve
Transformer differential relay compares the currents entering and leaving the transformer windings
IDMT relay is used for protecting electrical equipment from overcurrents
Transformer differential relay is used for detecting internal f
Solar panels convert sunlight into electricity through photovoltaic cells.
Solar panels contain photovoltaic cells that convert sunlight into electricity
When sunlight hits the cells, it excites electrons, creating a flow of electricity
The electricity generated can be used to power homes, businesses, or stored in batteries for later use
Test is very easy in online mode
It is some what difficult but i cracked it
I applied via Campus Placement and was interviewed in Aug 2023. There were 4 interview rounds.
In aptitude test , they asked questions regarding reasoning verbal, general knowledge and also about electrical subjects. 100 questions in 90min it was pretty tough and time consuming
They created a group of 8 as one group. My GD was online. My GD topic was "Impact of Iot in our lifes". They gave us 2min for preparation and 10min for discussion.
Mechatronics is a multidisciplinary field that combines mechanical engineering, electronics, computer science, and control engineering.
Combines mechanical engineering, electronics, computer science, and control engineering
Involves designing, developing, and controlling advanced systems
Examples include robotics, automated manufacturing systems, and automotive systems
BS4 engines comply with Bharat Stage 4 emission norms, while BS6 engines comply with Bharat Stage 6 emission norms.
BS4 engines have higher emissions of pollutants like NOx and PM compared to BS6 engines
BS6 engines have advanced emission control technologies like Selective Catalytic Reduction (SCR) and Diesel Particulate Filter (DPF)
BS6 engines are more fuel-efficient and environmentally friendly compared to BS4 engines
Mechatronics is the integration of mechanical, electrical, and computer engineering to create useful products and systems.
Automated manufacturing systems
Robotics
Automated guided vehicles
Smart home technology
Medical devices
Improving the performance of electrical vehicles can be achieved through various methods.
Increasing battery capacity for longer range
Enhancing charging infrastructure for faster charging times
Improving motor efficiency for better acceleration and speed
Reducing vehicle weight to increase energy efficiency
Implementing regenerative braking to capture energy during deceleration
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