Doosan Power Systems Executive Engineer Interview Questions and Answers

Q1. Company providing in acomdtion
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Q2. Electrical mentioned
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Q3. Electrical,mentnac types
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Q4. Macinary mentioned
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Quantitative aptitude

Q1. Given the image of switch,which type of switch shown in the fig
Ans. 
The switch shown in the image is a toggle switch.
• The switch has a lever that can be moved up and down to turn it on or off.

• Toggle switches are commonly used in electronic devices and appliances.

• Examples of toggle switches include light switches and power switches on electronic devices.
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Q2. Network theorem questions
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Q1. In t years where you want to see yourself
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In t years, I see myself as a senior electrical engineer leading innovative projects and mentoring junior engineers.
• Continuing to develop my technical skills and knowledge in the field of electrical engineering

• Taking on more leadership roles within projects and teams

• Mentoring and guiding junior engineers to help them grow in their careers

• Contributing to the development of cutting-edge technologies and solutions

• Possibly...read more
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Q2. Why do you want to join Hitachi energy
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I want to join Hitachi Energy because of their innovative solutions and global impact in the energy sector.
• Hitachi Energy is a leader in providing sustainable energy solutions

• I am impressed by Hitachi Energy's commitment to innovation and technology advancement

• I believe my skills and experience align well with the opportunities at Hitachi Energy

• I am excited about the chance to work on cutting-edge projects and contribu
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Q1. Like what is your work experience. Are you willing to climb twice in a day .
Ans. According to your experience needs to give answers Second question- yes
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Q2. Are you willing to work if require to support near by site .
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Q1. As per your experience as previous company they asked questions, but more focos on safety .
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Q2. What is LOTO , Types of LOTO
Ans. 
LOTO stands for Lockout/Tagout, a safety procedure used to ensure that dangerous machines are properly shut off and not started up again prior to the completion of maintenance or servicing work.
• LOTO involves locking the energy isolating devices with an assigned individual lock and tag to prevent the machine from being turned on.

• Types of LOTO include electrical LOTO, mechanical LOTO, and pneumatic LOTO.

• Examples of LOTO ...read more
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Q1. Previous experiences questions, like DFIG , Converter system, power factor , transformer , lighting system, Earthing system .
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Normal discussion with seniors

Q1. Salary discussion and joining details
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Q1. What is the Transformer
Ans. 
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Consists of two coils of wire, known as primary and secondary coils

• Primary coil receives electrical energy and creates a magnetic field

• Magnetic field induces a voltage in the secondary coil, transferring energy

• Used in power distribution, voltage regulation, and electrical isolation
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Q2. Electrical 8 equipment
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Q1. Basic substations design qstns. Earthmat design. Scf calculations. Dslp calculations. Protection sld
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Q2. Lt sld design Liģhting calculation
Ans. 
Lighting calculation is an essential part of lighting design to ensure proper illumination levels.
• Lighting calculation involves determining the number and placement of light fixtures needed to achieve the desired illumination levels in a space.

• Factors such as room size, ceiling height, surface reflectance, and task requirements are taken into consideration.

• Various software tools are available to aid in lighting calcula
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Q3. Ct sizing calculation
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Q4. Battery and charger sizing calculation
Ans. 
Battery and charger sizing calculation
• Determine the power requirements of the device

• Calculate the battery capacity needed based on power requirements and desired runtime

• Select a charger that can handle the battery capacity and charging time

• Consider factors such as temperature, voltage, and current when selecting components
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Q1. Power converters
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Written exam with technical and non technical

Q1. Technical questions
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Q1. Expected CTC, facility
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