Doosan Power Systems Senior HSE Officer Interview Questions and Answers

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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Q1. Related to Six Sigma , Process capability
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Q2. Quality tools for analysis
Ans. 
Quality tools for analysis include Pareto charts, fishbone diagrams, scatter plots, and control charts.
• Pareto charts help identify the most significant factors affecting quality

• Fishbone diagrams help identify the root cause of a problem

• Scatter plots help identify correlations between variables

• Control charts help monitor and control a process over time
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Q1. Previous experience
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Q2. Describe most challenging project
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Q1. Turbomachinery Packaging Questions
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Q2. Describe systems in detail and tell major projects and machines you worked.
Ans. 
I have extensive experience working with various systems and machines in major projects.
• Implemented ERP system for streamlining operations

• Managed deployment of CRM system for customer relationship management

• Led team in upgrading manufacturing machines for increased efficiency
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Q1. Codes, materials, concrete
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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. What is impidance,DGR FUNDAMENTAL AND BASICS
Ans. 
Impedance is the measure of opposition to the flow of electric current in a circuit. DGR fundamental refers to the Dielectric Withstand Voltage test.
• Impedance is measured in ohms and is the combination of resistance, capacitance, and inductance in a circuit.

• DGR fundamental is a test to determine the maximum voltage a material can withstand without breaking down.

• Basics of impedance include understanding the relationship...read more
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