EMFLUX MOTORS Mechanical Engineer Interview Questions and Answers

Concept Based Question on C Programming
And Logical questions

Q1. Next Round with manager
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Q1. What are your strengths and weakness
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Q1. General inquiry
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Q2. Background verification
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Q1. Experience based questioning
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Q2. Normal interview
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Q1. Embedded C questions
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Q2. Watchdog Timer, I2C, SPI, UART
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Q3. Design State Machine
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Q4. Mix Sound Driver
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Q5. Renesas related
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Q1. Bootloader related UDS services
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Q2. HSM and flash driver
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Q3. Startup code sequence
Ans. 
Startup code sequence refers to the order in which code is executed when a program is launched.
• Startup code sequence typically involves initializing variables, setting up memory, and executing any necessary setup functions.

• Examples of startup code sequence include setting up hardware registers in embedded systems, initializing global variables in C programs, and loading configuration files in web applications.
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Q1. Are you ready to work on weekends
Ans. 
Yes, I am willing to work on weekends if necessary to meet project deadlines or address urgent issues.
• I understand that sometimes working on weekends may be required in order to meet project deadlines or address urgent issues.

• I am committed to delivering high-quality work and am willing to put in extra hours when needed.

• I am flexible with my schedule and can adjust my plans to accommodate weekend work if necessary.
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Q2. How will you manage conflicts within the team
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I will address conflicts by promoting open communication, active listening, and facilitating constructive discussions.
• Encourage open communication among team members to address conflicts early on

• Practice active listening to understand all perspectives involved

• Facilitate constructive discussions to find mutually beneficial solutions

• Establish clear team norms and guidelines for conflict resolution

• Seek input from team mem...read more
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Q3. Why are you switching jobs
Ans. 
Seeking new challenges and opportunities for growth in a more innovative and dynamic environment.
• Looking for new challenges and opportunities for growth

• Interested in working in a more innovative and dynamic environment

• Seeking career advancement and professional development
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Q1. Salary negotiation and Notice period
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Q2. Why are you switching
Ans. 
Seeking new challenges and opportunities for growth in a different environment.
• Looking for new challenges and opportunities for growth

• Interested in working with different technologies or industries

• Seeking a better work-life balance or company culture

• Wanting to expand skill set or take on more responsibilities

• Relocation to a new area
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Q1. What is star delta starter?
Ans. 
Star delta starter is a type of reduced voltage starter used in induction motors to reduce starting current.
• Consists of two contactors - one for star connection and one for delta connection

• Initially motor is started in star connection to reduce starting current

• After a set time, motor is switched to delta connection for full speed operation

• Used in applications where high starting current can damage equipment
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Q2. How to use third party device in plc what is process?
Ans. 
To use a third party device in a PLC, you need to establish communication protocols and configure the PLC to send and receive data from the device.
• Identify the communication protocol supported by the third party device (e.g. Modbus, Profibus)

• Configure the PLC to communicate with the third party device using the identified protocol

• Map the data points between the PLC and the third party device to ensure seamless data exc...read more
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Q3. What is eddy current formula?
Ans. 
The eddy current formula calculates the magnitude of induced currents in a conductor due to a changing magnetic field.
• The formula is given by: I = π * D * f * B * σ

• Where I is the eddy current (A)

• D is the diameter of the coil (m)

• f is the frequency of the magnetic field (Hz)

• B is the magnetic field strength (T)

• σ is the conductivity of the material (S/m)
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Q4. What methods can be used to improve the power factor of a 130 kW load with a power factor of 0.7, and what rating of capacitor is required for this improvement?
Ans. 
To improve the power factor of a 130 kW load with a power factor of 0.7, capacitors can be used. The required rating of the capacitor depends on the desired power factor improvement.
• Install capacitors in parallel with the load to improve power factor

• Calculate the required capacitance using the formula: C = (P * tan(acos(pf))) / (V^2)

• Choose capacitors with the appropriate voltage and capacitance rating for the load

• Ensur...read more
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Q1. What questions were asked regarding your family background, specifically about your mother, brother, wife, and daughter?
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Q2. What are two reasons why we should hire you?
Ans. 
I have a strong background in maintenance engineering and a proven track record of improving efficiency and reducing downtime.
• Extensive experience in troubleshooting and repairing mechanical and electrical systems

• Proven ability to implement preventive maintenance programs to increase equipment reliability

• Strong communication skills to work effectively with cross-functional teams

• Certified in relevant maintenance enginee
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Q1. What is eddy current What is 5s tpm What is electromagnetic induction What formula of rpm measurement How dc motor work How you daily shift handover takeover How deal with major breakdown How star delta ...read more
Ans. 
Questions related to maintenance engineering including eddy current, 5S TPM, electromagnetic induction, RPM measurement, DC motor, shift handover, major breakdown, and star delta starter.
• Eddy current is a current induced in a conductor due to a changing magnetic field

• 5S TPM is a methodology for workplace organization and standardization

• Electromagnetic induction is the production of an electromotive force across a condu...read more
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Q1. Family baground and eduction oral discussion
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Q1. 1-Wiring diagram of Star delt 2- Why we use star delta 3- Any kaizen in previous company 4-How to solve breakdown & how to find root cause 5-UGVCL reading
Ans. 
Questions related to electrical engineering including wiring diagrams, kaizen, breakdowns, and UGVCL readings.
• Star delta wiring diagram is used to control the starting current of induction motors.

• Star delta is used to reduce the starting current of induction motors and prevent damage to the motor and electrical system.

• Kaizen is a continuous improvement process that involves identifying and implementing small changes to...read more
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Q1. What are your salary expectations?
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Q2. What is your family background?
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Q3. Why are you looking for a change?
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Q4. What are your strengths and weaknesses?
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Q5. Tell me about yourself.
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