Larsen & Toubro Group Senior Electrical Engineer Interview Questions and Answers

Q1. Question related to experience
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Q1. About the site supervision
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Q1. I was interviewed for Transmission & Distribution Profile Q1 - Please walk us through your CV and your roles in the various projects ? Q2 - Tell us about design calculations of EHV Cables. How you come up ...read more
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Q2. Q15 - Concepts of HVDC & Offshore Connections
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HVDC is a technology used to transmit high voltage DC power over long distances. Offshore connections refer to power transmission from offshore wind farms.
• HVDC is more efficient than AC transmission over long distances

• Offshore connections require specialized equipment and installation techniques

• HVDC is used for offshore connections to transmit power from offshore wind farms to the mainland

• Examples of HVDC projects incl...read more
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Q1. Electrical panal installation and connection
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Q2. External work complete
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Q3. Construction building in raising panal installation
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Construction building in raising panel installation involves proper planning, coordination, and adherence to safety regulations.
• Ensure all necessary materials and equipment are available before starting the installation process

• Coordinate with other trades to ensure smooth workflow and avoid conflicts

• Follow safety regulations and guidelines to prevent accidents and injuries

• Properly train and supervise workers to ensure ...read more
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Q1. What is diesel generator, transformer & HVAC
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Diesel generator is a backup power source using diesel fuel, transformer is a device that transfers electrical energy between circuits, and HVAC is a system for heating, ventilation, and air conditioning.
• Diesel generator: provides backup power using diesel fuel, commonly used in areas with frequent power outages

• Transformer: transfers electrical energy between circuits, stepping up or down voltage levels as needed

• HVAC: ...read more
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Q2. Operation & maintenance LT pannel & HT pannel
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Q3. What is fire fighting system
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A fire fighting system is a set of equipment and procedures designed to detect, control, and extinguish fires in a building or area.
• Includes fire alarms, sprinkler systems, fire extinguishers, and fire hoses

• May also involve fire suppression systems like foam or gas

• Designed to protect lives and property in the event of a fire

• Regular maintenance and testing are crucial to ensure effectiveness
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Q4. What is DM plant
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DM plant stands for Demineralization plant, used to remove minerals and salts from water.
• DM plant is used in industries to produce demineralized water for various processes.

• It consists of ion exchange resins to remove minerals like calcium, magnesium, and salts from water.

• The process involves passing water through cation and anion exchange columns to remove ions.

• DM plant is essential in power plants, pharmaceutical ind...read more
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Q5. What is acb,vcb,mccb, mcb
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ACB, VCB, MCCB, MCB are types of circuit breakers used in electrical systems.
• ACB stands for Air Circuit Breaker, used for high voltage applications.

• VCB stands for Vacuum Circuit Breaker, used for medium voltage applications.

• MCCB stands for Molded Case Circuit Breaker, used for low voltage applications.

• MCB stands for Miniature Circuit Breaker, used for residential and commercial applications.
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Q6. Fire fighting system
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Q7. ACB,VCB,MCCB,MCB,OCB etc
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Q1. Electrical engineer
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Q2. Solar technician
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Q3. Lisoining hand over take over
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Q4. Erection testing commissioning
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Q5. Row solve sub contractors billing
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To row solve sub contractors billing, ensure accurate tracking of work completed, materials used, and hours worked.
• Maintain detailed records of work completed by each subcontractor

• Verify invoices against work completed and materials used

• Track hours worked by subcontractors to ensure accurate billing

• Address any discrepancies or issues promptly to avoid delays in payment
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C6h12o6 what's this is

Q1. Root 3 what is this
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Q2. 66 conversation for Roman number
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Q1. Auxin what is theis
Ans. 
Auxin is a plant hormone that regulates growth and development.
• Auxin is responsible for cell elongation and division in plants.

• It plays a role in phototropism, gravitropism, and apical dominance.

• Examples of auxin include indole-3-acetic acid (IAA) and synthetic auxins like 2,4-D.
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Q2. Iaa what is this
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Electrician test and all questions

Q1. 2 way wairing And all electrical work
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Q2. 2 way and light and wairing and Earth and all
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Q3. Electrical all questions
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Q1. Good knowledge in electrical
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Q2. Power system information and automation
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