Doosan Power Systems Mechanical Engineer Interview Questions and Answers

Q1. Testing Technical know-how based on your previous experience
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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. Share details of your previous job.
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Q4. Why should we hire you?
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Q5. Why are you looking for a change?
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Q6. Tell me about yourself.
Ans. 
I am a passionate Mechanical Engineer with a strong background in design, analysis, and project management, eager to innovate and solve problems.
• Graduated with a Bachelor's degree in Mechanical Engineering from XYZ University, where I developed a solid foundation in thermodynamics and fluid mechanics.

• Completed an internship at ABC Corp, where I worked on optimizing HVAC systems, resulting in a 15% increase in energy ef...read more
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Q1. Java question and core subject questions
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Q1. Discuss about yourself
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Q2. What is your day to day activities
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As a Mechanical Engineer, my daily activities involve design, analysis, testing, and collaboration on engineering projects.
• Designing mechanical components using CAD software like SolidWorks or AutoCAD.

• Conducting simulations to analyze performance and durability of designs.

• Collaborating with cross-functional teams to ensure project alignment.

• Participating in meetings to discuss project progress and challenges.

• Overseeing...read more
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Q3. Describe ur family
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Nothing much , rest is basically technical

We have to talk on a subject for log time thats all

Q1. How to speed control on motor and generator.
Ans. 
Speed control on motors and generators can be achieved through various methods.
• For motors, speed control can be achieved by adjusting the voltage, frequency, or the number of poles.

• For generators, speed control can be achieved by adjusting the mechanical input or the load connected to the generator.

• In motors, variable frequency drives (VFDs) can be used to control the speed by adjusting the frequency of the power suppl...read more
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Q2. What is IDFT controller ?
Ans. 
IDFT controller stands for Inverse Discrete Fourier Transform controller.
• IDFT controller is used in signal processing to convert frequency domain signals to time domain signals.

• It is the inverse of the Discrete Fourier Transform (DFT) controller.

• IDFT controller is commonly used in audio and video processing applications.

• It is also used in communication systems to convert frequency domain signals to time domain signals ...read more
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Q1. Codes, materials, concrete
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Q1. What is impedance ,reacance
Ans. 
Impedance is the total opposition to the flow of alternating current in a circuit, while reactance is the opposition to the flow of alternating current caused by capacitance or inductance.
• Impedance is a combination of resistance and reactance in a circuit.

• Reactance is the opposition to the flow of alternating current caused by capacitance or inductance.

• Capacitive reactance is the opposition to the flow of alternating c...read more
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Q2. How calculate plant load factors
Ans. 
Plant load factor is calculated by dividing the actual energy generated by the maximum possible energy that could have been generated.
• Plant load factor = Actual energy generated / Maximum possible energy that could have been generated

• Maximum possible energy is calculated by multiplying the rated capacity of the plant with the number of hours in a given time period

• Plant load factor is expressed as a percentage

• It is used...read more
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