40+ Tata Power Solar Interview Questions and Answers

Permit to Work (PTW) is a system used to control high-risk activities in the workplace.

• There are various types of PTW, including hot work permits, confined space permits, electrical work permits, etc.

• The issuer of the PTW is usually the authorized person responsible for overseeing the activity and ensuring safety measures are in place.

• The user of the PTW is the individual or team who will be carrying out the high-risk activity.

• Examples of issuers can be HSE officers, supervis...read more

I have experience in building power transmission systems.

• I have built power transmission systems in my previous job.

• I have worked on projects involving power transmission systems.

• I am familiar with the process of building power transmission systems.

• I have knowledge of the equipment and materials required for power transmission systems.

• I have experience in designing power transmission systems for different environments.

Protection methods for transformers include overcurrent protection, differential protection, and temperature monitoring.

• Overcurrent protection: Uses fuses or circuit breakers to protect against excessive current flow.

• Differential protection: Compares the current entering and leaving the transformer to detect internal faults.

• Temperature monitoring: Uses sensors to monitor the temperature of the transformer and trigger alarms or shutdowns if it exceeds safe levels.

There are several types of transformer testing including routine, type, special, and field testing.

• Routine testing is done during the manufacturing process to ensure the transformer meets standard specifications.

• Type testing is done on a sample transformer to ensure it meets specific requirements before being put into service.

• Special testing is done on transformers that have been in service for a long time or have undergone repairs or modifications.

• Field testing is done on tr...read more

Tata Power Solar is a company that specializes in solar energy solutions. Electrical and electronics differ in their focus and applications.

• Tata Power Solar is involved in the manufacturing and installation of solar panels and related equipment.

• Electrical engineering deals with the study and application of electricity, including power generation, transmission, and distribution.

• Electronics engineering focuses on the design and development of electronic circuits and devices, su...read more

PTW stands for Permit to Work, HIRA stands for Hazard Identification and Risk Assessment, and JSA stands for Job Safety Analysis.

• PTW is a formal written system used to control certain types of work that are potentially hazardous.

• HIRA is a process of identifying potential hazards and analyzing and evaluating the associated risks.

• JSA is a process of identifying potential hazards associated with a specific job or task and developing measures to control those hazards.

• All three ar...read more

Voc is the open circuit voltage of a transformer. Vector group is the arrangement of transformer windings.

• Voc is the voltage measured across the terminals of a transformer when there is no load connected to it.

• Vector group is a code that describes the arrangement of the windings in a three-phase transformer.

• Vector group determines the phase displacement between the primary and secondary windings.

• Vector group is important for connecting transformers in parallel and for determi...read more

Induction is a comprehensive introduction to the workplace, while toolbox talk is a brief safety meeting.

• Induction covers all aspects of the workplace, including policies, procedures, and emergency protocols.

• Toolbox talk is a short meeting that focuses on a specific safety topic or hazard.

• Induction is usually given to new employees, while toolbox talk is given to all employees on a regular basis.

• Induction is more formal and structured, while toolbox talk is more informal and ...read more

The process of module installation involves planning, preparation, installation, testing, and commissioning.

• Plan the layout and placement of modules based on specifications and requirements

• Prepare the site by ensuring proper electrical connections and safety measures

• Install the modules following manufacturer's instructions and industry standards

• Test the modules to ensure they are functioning correctly

• Commission the modules to integrate them into the larger electrical system

• Ex...read more

IV curve testing of solar modules involves measuring the current-voltage characteristics to assess performance.

• IV curve testing helps determine the power output of a solar module under different conditions.

• The test involves varying the voltage across the module while measuring the current flowing through it.

• The resulting IV curve provides valuable information on the module's efficiency and performance.

• By analyzing the IV curve, technicians can identify any issues or defects i...read more

The torque value of an M20 bolt in dry condition and grade 9.2 is typically around 420 Nm.

• The torque value for a specific bolt can vary based on factors such as lubrication, thread condition, and material composition.

• For an M20 bolt with grade 9.2, the recommended torque value is usually in the range of 400-450 Nm.

• It is important to consult the manufacturer's specifications or a torque chart for the exact value based on the specific conditions.

Scaffold green tag red tag is a system used to indicate the safety status of a scaffold.

• Green tag indicates that the scaffold is safe to use

• Red tag indicates that the scaffold is unsafe and should not be used

• The tags are typically attached to the scaffold structure for easy identification

Solar modules can have faults such as hot spots, shading, soiling, PID, and potential induced degradation.

• Hot spots: localized overheating due to shading, dirt, or manufacturing defects

• Shading: reduced output caused by obstructions like trees or buildings

• Soiling: dirt or debris covering the modules reducing efficiency

• PID (Potential Induced Degradation): voltage stress leading to power loss

• Potential induced degradation: power loss due to voltage stress

We ensure proper training, use of safety equipment, clear communication, and adherence to protocols.

• All staff receive training on safe loading & unloading procedures

• Use of appropriate safety equipment such as gloves, helmets, and safety vests

• Clear communication between team members to avoid accidents

• Adherence to established protocols and guidelines for loading & unloading

• Regular maintenance and inspection of equipment to ensure safety

Movement type of GRIN is Goods Receipt for Inbound Delivery

• GRIN is used to record the receipt of goods from a vendor

• It is typically used in warehouse management systems

• GRIN updates the stock quantity in the system

Safety is the state of being free from harm or danger. Gas cutting job involves using a flame to cut or weld metal.

• Safety is the practice of preventing accidents, injuries, and other potential risks in the workplace.

• Gas cutting job is a process where a flame is used to heat and melt metal, allowing it to be cut or welded.

• Safety measures in gas cutting job include wearing appropriate protective gear, ensuring proper ventilation, and following established procedures.

• Examples of...read more

Transformers testing involves various tests to ensure proper functioning and safety.

• Dielectric strength test to check insulation quality

• Turns ratio test to verify transformer turns ratio

• Winding resistance test to measure resistance of windings

• Insulation resistance test to assess insulation resistance

• Polarity test to confirm correct polarity

• Load test to evaluate performance under load conditions

Electricity is the flow of electrons through a conductor.

• Electricity is a form of energy that powers most of our modern devices.

• It is generated by various sources such as coal, wind, solar, and hydro power.

• Electricity can be stored in batteries and used later.

• It can be dangerous if not handled properly and can cause electric shocks or fires.

• Electricity is measured in units of volts, amps, and watts.

There are multiple types of SCB depending on the context.

• SCB can refer to Single Circuit Board or Single Chip Board in electronics.

• In finance, SCB can refer to Standard Chartered Bank.

• In medicine, SCB can refer to Subcutaneous Bleeding or Spinal Cord Blood.

• There may be other contexts where SCB has different meanings.

I am looking for a new job opportunity that allows me to further develop my skills and knowledge in instrumentation technology.

• Seeking a position with more growth potential

• Interested in working with advanced instrumentation equipment

• Want to expand my knowledge in calibration and troubleshooting

• Desire to work in a team-oriented environment

• Looking for a company that values professional development

There are several types of bearings used in various applications, including ball bearings, roller bearings, plain bearings, and fluid bearings.

• Ball bearings

• Roller bearings

• Plain bearings

• Fluid bearings

To make GRIN, mix ground ginger, rice flour, and icing sugar.

• Mix ground ginger, rice flour, and icing sugar in a bowl.

• Adjust the quantities of each ingredient to achieve the desired taste and consistency.

• Store the GRIN mixture in an airtight container to maintain freshness.

Gain new technical knowledge through continuous learning, networking, hands-on experience, and staying updated with industry trends.

• Enroll in online courses, workshops, and seminars related to your field.

• Attend conferences, webinars, and meetups to network with professionals and learn about the latest technologies.

• Read books, research papers, and technical blogs to stay informed about industry trends.

• Participate in hands-on projects, hackathons, and coding challenges to apply...read more

A store executive is responsible for overseeing the daily operations of a retail store, including managing staff, inventory, and customer service.

• Managing staff by hiring, training, and scheduling employees

• Monitoring and maintaining inventory levels

• Ensuring excellent customer service and resolving any customer complaints

• Analyzing sales data and implementing strategies to increase revenue

• Collaborating with other departments such as marketing and merchandising

Housekeeping refers to the maintenance and cleanliness of a workplace or living space.

• Housekeeping involves organizing, cleaning, and maintaining a space to ensure safety and efficiency.

• Examples include sweeping floors, dusting surfaces, disposing of trash, and organizing tools and equipment.

• Good housekeeping practices can prevent accidents, improve productivity, and create a positive work environment.

Risk is the potential for harm or loss, while a Safety program is a set of procedures and measures to prevent accidents and injuries.

• Risk is the likelihood of a negative event occurring, such as an accident, injury, or financial loss

• Safety program includes policies, procedures, training, and equipment to minimize risks and promote a safe work environment

• Examples of safety programs include regular safety training for employees, implementation of safety protocols in hazardous w...read more

Calibration is the process of comparing measurements of an instrument or device to a known standard to ensure accuracy.

• Calibration involves adjusting the instrument or device to align with the standard

• It is important for maintaining accuracy and reliability of measurements

• Calibration is typically done regularly to ensure consistent performance

• Examples include calibrating thermometers, scales, and pressure gauges

Sales of solar projects can be achieved through effective marketing, networking, and showcasing the benefits of solar energy.

• Develop a strong marketing strategy to reach potential clients

• Attend industry events and conferences to network with potential clients and partners

• Highlight the financial benefits of solar energy, such as cost savings and tax incentives

• Emphasize the environmental benefits of solar energy, such as reducing carbon emissions

• Provide case studies and testimo...read more

JSA stands for Job Safety Analysis. It is a process of identifying potential hazards and risks associated with a particular job or task.

• JSA involves breaking down a job into individual steps

• Each step is analyzed to identify potential hazards and risks

• Preventive measures are then identified and implemented to minimize or eliminate the risks

• JSA is commonly used in industries such as construction, manufacturing, and oil and gas

• Example: JSA for operating heavy machinery would inv...read more

To check a PO, verify the details against the purchase order document.

• Compare the PO number on the document with the one in the system.

• Check the items ordered, quantities, prices, and delivery dates for accuracy.

• Ensure that the terms and conditions of the PO are being met.

• Confirm that the PO has been approved by the appropriate personnel.

• Cross-reference the PO with any related documents, such as invoices or packing slips.

A serrated washer is a type of washer with serrations on one side to prevent loosening of the fastener.

• Serrated washers have teeth or ridges on one side to grip the surface and prevent rotation or loosening

• They are commonly used in applications where vibration may cause regular washers to loosen

• Serrated washers are available in various materials such as steel, stainless steel, and nylon

Control of machines involves ensuring they operate within specified parameters to produce quality products.

• Implementing control systems to monitor and adjust machine settings

• Regular maintenance and calibration of machines to prevent deviations

• Training operators on proper machine operation and troubleshooting

• Utilizing statistical process control techniques to analyze machine performance

• Implementing automation to improve consistency and reduce human error

The percentage of carbon in MS (mild steel) typically ranges from 0.05% to 0.25%.

• Percentage of carbon in MS (mild steel) is usually between 0.05% to 0.25%.

• Carbon content affects the strength and hardness of the steel.

• Higher carbon content results in harder but more brittle steel.

• Lower carbon content results in softer but more ductile steel.

Solar energy is harnessed from the sun's radiation and converted into usable electricity.

• Solar panels absorb sunlight and convert it into direct current (DC) electricity.

• An inverter then converts the DC electricity into alternating current (AC) electricity.

• The AC electricity is then used to power homes, businesses, and other electrical devices.

• Excess energy can be stored in batteries or fed back into the grid for others to use.

• Solar energy is a renewable and sustainable sourc...read more

I am highly interested in this role as it aligns with my skills and experience.

• I have relevant experience in business development and sales.

• I am passionate about building relationships and identifying new opportunities.

• I am excited about the potential to contribute to the growth of the company.

• I am eager to learn and develop new skills in this role.

• I am confident that I can make a positive impact on the team and the company as a whole.

Regular maintenance, upgrades, monitoring, and optimization can improve equipment performance.

• Implement regular maintenance schedules to prevent breakdowns

• Upgrade equipment with newer technology for improved efficiency

• Monitor equipment performance data to identify areas for improvement

• Optimize equipment settings and processes to maximize performance

• Train staff on proper equipment usage and maintenance procedures

IS code 822 is a standard set by the Bureau of Indian Standards for the method of conducting hydrostatic tests on concrete pipes.

• IS code 822 specifies the procedure for conducting hydrostatic tests on concrete pipes to ensure their quality and durability.

• The code outlines the equipment required, test procedure, acceptance criteria, and reporting requirements.

• It is important for field quality engineers to be familiar with IS code 822 to ensure compliance with industry standard...read more

The type of alignment refers to the positioning of components in relation to each other.

• There are different types of alignment such as parallel, perpendicular, angular, and concentric.

• Alignment is crucial for proper functioning and performance of mechanical systems.

• For example, in automotive engineering, wheel alignment is important for vehicle stability and tire wear.

• In manufacturing, alignment of machine parts ensures precision and accuracy in production.

• Alignment can be ac...read more

Electricity is generated by converting mechanical energy, chemical energy, or solar energy into electrical energy.

• Mechanical energy is converted into electrical energy through generators in power plants.

• Chemical energy is converted into electrical energy through batteries or fuel cells.

• Solar energy is converted into electrical energy through photovoltaic cells.

• Electricity can also be generated through nuclear reactions in nuclear power plants.

• Renewable sources like wind, hydr...read more

First aid is the immediate care given to a person who has been injured or suddenly taken ill.

• First aid is administered before professional medical help arrives.

• It aims to preserve life, prevent the condition from worsening, and promote recovery.

• Examples of first aid include CPR, bandaging wounds, and treating burns.

SAP MM is a module in SAP ERP that deals with procurement and inventory management.

• SAP MM stands for Material Management

• It involves processes such as procurement, inventory management, and invoice verification

• It helps in managing materials, vendors, and procurement processes efficiently

• Example: Creating purchase orders, managing stock levels, and vendor evaluation

Scaffolding is a temporary structure used to support workers and materials during construction or maintenance.

• Scaffolding provides a safe working platform at elevated heights.

• It is typically made of metal or wood and consists of platforms, braces, and guardrails.

• Examples include tube and coupler scaffolding, frame scaffolding, and suspended scaffolding.

Transformers are used to change the voltage of electricity for transmission and distribution purposes.

• Transformers step up or step down voltage levels as needed

• They help in efficient transmission of electricity over long distances

• Examples include power transformers in substations and distribution transformers on utility poles