Cygni Energy Electrical Design Engineer Interview Questions and Answers

Q1. Basic law of governing transformer
Ans. 
The basic law governing transformers is the law of electromagnetic induction.
• The law states that when the magnetic field around a conductor changes, an electromotive force (EMF) is induced in the conductor.

• This EMF can cause a current to flow if the conductor forms a closed loop.

• In a transformer, this principle is used to transfer electrical energy from one circuit to another through electromagnetic induction.

• The prima...read more
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Q2. What are various losses in transformer
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Various losses in a transformer include copper losses, iron losses, and stray losses.
• Copper losses occur due to resistance in the transformer windings.

• Iron losses, also known as core losses, occur due to hysteresis and eddy currents in the transformer core.

• Stray losses occur due to leakage flux and stray capacitance in the transformer.

• Copper losses and iron losses are the major contributors to total losses in a transfo...read more
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Q3. Difference between AC and DC
Ans. 
AC and DC are two types of electrical current. AC changes direction periodically while DC flows in one direction.
• AC stands for Alternating Current and DC stands for Direct Current.

• AC changes direction periodically, typically in a sinusoidal waveform.

• DC flows in one direction only, maintaining a constant polarity.

• AC is used for power transmission over long distances due to its ability to be easily converted to different...read more
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Q4. What is mean by inverter and its basic working
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An inverter is a device that converts DC power to AC power.
• An inverter is commonly used in electrical systems to convert the direct current (DC) produced by sources such as batteries or solar panels into alternating current (AC) that can be used to power appliances and devices.

• The basic working principle of an inverter involves the use of electronic components such as transistors to switch the DC input on and off rapid...read more
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Q5. What all component are required in solar panel installation and brief them
Ans. 
Solar panel installation requires several components including solar panels, inverters, mounting systems, wiring, and electrical protection devices.
• Solar panels: These are the main components that convert sunlight into electricity.

• Inverters: They convert the direct current (DC) produced by solar panels into alternating current (AC) that can be used in homes or fed into the grid.

• Mounting systems: These are used to secur...read more
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Q6. What all various type of circuit breaker are there their uses and their rating.
Ans. 
There are various types of circuit breakers with different uses and ratings.
• Miniature Circuit Breaker (MCB) - used in residential and commercial buildings

• Molded Case Circuit Breaker (MCCB) - used in industrial applications

• Air Circuit Breaker (ACB) - used for high voltage applications

• Ground Fault Circuit Interrupter (GFCI) - used to protect against electrical shocks

• Residual Current Circuit Breaker (RCCB) - used to detec...read more
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Q7. Why you choose electrical engineering and what all project you has done and what are your final year project if you mention in resume.
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Q1. About my work experience
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Q2. Job role related questions
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Q3. My work related Achievement
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Q4. About Previous company job role
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Q5. How to work on this role
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Q6. About cummunication skill
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Q7. How to handle Resources and manpower
Ans. 
Resources and manpower can be handled efficiently by proper planning and allocation.
• Identify the required resources and manpower for the project

• Allocate resources and manpower based on their skills and availability

• Regularly monitor the progress and adjust the allocation if necessary

• Maintain open communication with the team to ensure smooth workflow

• Implement contingency plans in case of unexpected events
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Q8. About Projects planning
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Q9. About Safety management system
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Q10. About Environmental healt and safety
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Q11. Qualify controle and improvement
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Q12. About project cost control
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Q13. About customer satisfaction
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Q14. About Customer WTG HOTO
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Q15. About technical documentation
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Q16. About site survey and planing
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Q17. About Resources planning and handling
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Q1. Why you want to join our company
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Q2. Whats you thinks about senvion
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Q3. Personal interview and salary discussion
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Q1. Technical skills
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Q1. Background details
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Q1. DFIG Generator?
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Q2. Dv/dt and du/dt filter?
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Q3. Gearbox oil Grade ?
Ans. 
The gearbox oil grade is typically specified by the manufacturer based on the requirements of the gearbox.
• Gearbox oil grade is determined by the viscosity and additives needed for proper lubrication.

• Common gearbox oil grades include SAE 80, SAE 90, and SAE 140.

• Consult the manufacturer's specifications or maintenance manual for the recommended gearbox oil grade.
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Pitch convertor system,

Q1. Salary discussion
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Easy test with simple questions

Q1. How do solar panels produce electricity
Ans. 
Solar panels convert sunlight into electricity through the photovoltaic effect.
• Solar panels are made up of photovoltaic cells that contain semiconductors like silicon.

• When sunlight hits the solar panel, the photons in the light are absorbed by the semiconductors.

• This absorption creates an electric current as the electrons in the semiconductors are excited and flow through the material.

• The flow of electrons generates el...read more
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Q2. Tell us about the company
Ans. 
The company is a leading provider of electrical engineering solutions for various industries.
• Specializes in designing and implementing electrical systems for commercial and industrial buildings

• Offers services such as power distribution, lighting design, and energy efficiency consulting

• Works with clients in sectors like manufacturing, healthcare, and telecommunications

• Has a team of experienced electrical engineers and t...read more
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Q1. Fabrication procedure of Heat exchanger?
Ans. 
The fabrication procedure of a heat exchanger involves designing, assembling, and welding together various components to create a system for transferring heat between two fluids.
• Designing the layout and dimensions of the heat exchanger based on the specific requirements and operating conditions

• Selecting the appropriate materials for the heat exchanger components to ensure compatibility with the fluids and temperature r...read more
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Q2. Information about material of construction?
Ans. 
Material of construction refers to the type of material used to build a structure or object.
• Material of construction can impact the durability, strength, and cost of a project.

• Common materials include steel, concrete, wood, and plastic.

• The choice of material depends on factors such as the intended use, budget, and environmental conditions.

• For example, steel is often used in high-rise buildings for its strength, while w...read more
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Q1. Why are you interested to join M.E Energy?
Ans. 
I am interested in joining M.E Energy because of their innovative solutions in the energy sector and their commitment to sustainability.
• Impressed by M.E Energy's track record of delivering cutting-edge energy solutions

• Excited about the opportunity to contribute to a company that prioritizes sustainability

• Impressed by the company's reputation for innovation and excellence

• Believe my skills and experience align well with
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Q2. What will you owe to company if you join M.E Energy?
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I will owe loyalty, dedication, hard work, and commitment to M.E Energy if I join the company.
• Loyalty to the company's goals and values

• Dedication to performing my duties effectively

• Hard work to contribute to the success of the company

• Commitment to continuous improvement and growth

• Example: I will owe M.E Energy my loyalty by always prioritizing the company's interests over personal gain.
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