30+ Natlov Technologies Interview Questions and Answers

Interview questions for Junior Engineer Production related to transformers, circuit breakers, and loads.

• Transformer is an electrical device that transfers electrical energy from one circuit to another through electromagnetic induction.

• The function of a transformer is to step up or step down the voltage level of an alternating current (AC) power supply.

• Types of transformers include power transformers, distribution transformers, autotransformers, isolation transformers, and ins...read more

This interview is for the Shift Incharge Engineer position and the questions are related to compressors and Siemens Energy.

• Compressor is a mechanical device that increases the pressure of a gas by reducing its volume.

• There are two main types of compressors - positive displacement and dynamic.

• Double acting compressors compress the gas on both sides of the piston.

• Siemens Energy is a global energy company that provides products and solutions for power generation and transmission...read more

Hazardous classification refers to the categorization of substances or environments based on their potential to cause harm or danger.

• Hazardous classification is used to identify and communicate the level of risk associated with different substances or environments.

• It helps in determining the appropriate safety measures and precautions to be taken.

• Classification criteria include factors such as flammability, explosiveness, toxicity, and reactivity.

• Examples of hazardous classif...read more

Iron carbon diagram is a graphical representation of the phases of iron-carbon alloys at different temperatures and carbon concentrations.

• The diagram shows the relationship between carbon content, temperature, and the resulting microstructure of the alloy.

• It is used to determine the properties of steel and cast iron.

• The diagram consists of three regions: austenite, ferrite, and cementite.

• The eutectic point on the diagram represents the lowest melting point of the alloy.

• The di...read more

Components used in compressor include motor, piston, valves, and cooling system. Types of compressors include reciprocating, rotary, and centrifugal.

• Components used in compressor: motor, piston, valves, cooling system

• Types of compressors: reciprocating, rotary, centrifugal

Engineering is all around us, from the buildings we live in to the technology we use daily.

• The design and construction of buildings and infrastructure

• The development of transportation systems

• The creation of electronic devices and software

• The design and manufacture of medical equipment

• The development of renewable energy sources

Stress is the force applied to a material, while strain is the resulting deformation or change in shape.

• Stress is the force applied per unit area on a material, measured in units like Pascals or pounds per square inch.

• Strain is the resulting deformation or change in shape of the material, typically expressed as a percentage of the original size.

• Stress and strain are related by the material's modulus of elasticity, which describes how the material responds to stress.

• For exampl...read more

UPS is used to provide backup power in case of electrical outages or fluctuations.

• Provides continuous power supply during outages

• Protects sensitive electronic equipment from damage due to power surges or fluctuations

• Allows for safe shutdown of devices to prevent data loss

• Commonly used in data centers, hospitals, and critical infrastructure

• Types include offline, line-interactive, and online UPS

Circuit breaker in transmission line is used to protect the line from damage due to overloading or short circuit.

• It automatically disconnects the faulty section of the line from the rest of the system

• It prevents damage to the equipment and reduces downtime

• It helps in maintaining the stability of the power system

• Examples include air circuit breakers, vacuum circuit breakers, and SF6 circuit breakers

To tackle problems in procurement, it is important to identify root causes, establish clear communication channels, implement efficient processes, and continuously monitor performance.

• Identify root causes of procurement problems such as supplier issues, inventory management issues, or process inefficiencies.

• Establish clear communication channels with suppliers, stakeholders, and internal teams to ensure transparency and alignment.

• Implement efficient procurement processes such...read more

Scheduling in instrumentation and control for rotating equipment involves creating a detailed plan to ensure proper maintenance and operation.

• Develop a detailed schedule outlining maintenance tasks for each piece of rotating equipment

• Coordinate with operations and maintenance teams to ensure minimal downtime during maintenance activities

• Utilize software tools such as CMMS to track maintenance activities and schedule future tasks

• Consider factors such as equipment criticality a...read more

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

Siemens Energy is a global energy technology company providing solutions for sustainable energy generation, transmission, and distribution.

• Siemens Energy offers products and services for power generation, transmission, and distribution

• They focus on sustainable energy solutions such as wind power, gas turbines, and grid technology

• The company also provides digital solutions for energy management and optimization

• Siemens Energy operates globally with a presence in multiple countr...read more

Stress-strain curve is a graphical representation of the relationship between stress and strain in a material.

• It shows how a material behaves under stress and how it deforms under strain.

• It is used to determine the elastic modulus, yield strength, and ultimate strength of a material.

• The curve has three regions: elastic, plastic, and fracture.

• Examples of materials with different stress-strain curves include rubber, steel, and concrete.

The EHS management system is implemented at the site through a combination of policies, procedures, training, audits, and continuous improvement efforts.

• Establishing EHS policies and procedures to outline expectations and requirements

• Providing EHS training to employees to ensure understanding and compliance

• Conducting regular audits and inspections to identify areas for improvement

• Implementing corrective actions to address any non-compliance or hazards

• Continuously improving th...read more

The EHS policy is implemented at the site through regular training, audits, inspections, and communication with employees.

• Regular training sessions conducted to educate employees on EHS policies and procedures

• Audits and inspections carried out to ensure compliance with EHS regulations

• Open communication channels established for employees to report any safety concerns or incidents

• Safety committees formed to monitor and improve EHS performance

• Corrective actions taken promptly in...read more

3D modelling software like Nx, Solidworks, and E3D are commonly used in engineering for designing and visualizing complex systems.

• 3D modelling software like Nx, Solidworks, and E3D are used for creating detailed 3D models of mechanical components and systems.

• These software tools allow engineers to simulate and analyze the behavior of their designs before manufacturing.

• They are essential for designing products in industries such as automotive, aerospace, and manufacturing.

• Prof...read more

Electrical codes play a crucial role in lighting design, ensuring safety, efficiency, and compliance.

• Electrical codes provide guidelines for the installation, wiring, and operation of lighting systems.

• They specify the minimum requirements for electrical components, such as switches, fixtures, and wiring methods.

• Codes address issues like proper grounding, circuit protection, and voltage limitations to prevent electrical hazards.

• They also cover energy efficiency standards, such...read more

Two types of valves commonly used are ball valves and gate valves.

• Ball valves have a spherical closure unit that allows for quick on/off control of flow.

• Gate valves have a flat closure unit that is raised and lowered to control flow.

• Ball valves are commonly used in plumbing systems, while gate valves are often used in industrial applications.

• Both types of valves can be manual or automated for remote operation.

• Examples of ball valve manufacturers include Apollo Valves and Watt...read more

Assessing across geographies requires understanding cultural differences, local laws, and market conditions.

• Conduct research on local laws and regulations

• Understand cultural differences and adapt communication strategies

• Analyze market conditions and adjust business strategies accordingly

• Utilize technology to facilitate communication and collaboration across geographies

• Establish clear performance metrics and goals for each geography

• Regularly review and evaluate performance to ...read more

Buchholz is a device used in oil-filled transformers to detect and prevent faults.

• It is a gas and oil actuated relay

• It is used to detect faults such as overheating, overloading, and low oil level in transformers

• It works by detecting the gas generated by the fault and tripping the transformer to prevent further damage

• It is named after its inventor, Max Buchholz

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 calculation, such as Dialux, AGi32, and Visual.

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

Compensation management involves designing and implementing a fair and competitive pay structure for employees.

• Conduct market research to determine industry standards for pay and benefits

• Create a pay structure that aligns with company goals and values

• Consider performance-based pay and incentives to motivate employees

• Regularly review and adjust compensation to remain competitive

• Communicate clearly with employees about compensation policies and decisions

Understanding of sourcing goods and services from global markets.

• Knowledge of international trade regulations and tariffs

• Ability to identify and evaluate global suppliers

• Experience in negotiating contracts with overseas vendors

• Awareness of currency exchange rates and their impact on procurement costs

Synchronisation in generators is the process of matching the voltage, frequency, and phase angle of multiple generators before connecting them in parallel.

• Synchronisation ensures that the generators are operating in sync to prevent damage or power loss.

• Key factors for synchronisation include voltage, frequency, and phase angle matching.

• Synchronisation is typically done using synchronising lamps, synchroscopes, or automatic synchronisers.

• Once synchronised, the generators can b...read more

Regular maintenance implementations are crucial for ensuring the smooth operation of equipment and preventing costly breakdowns.

• Regularly schedule maintenance tasks such as equipment inspections, lubrication, and calibration.

• Keep detailed records of maintenance activities and equipment performance to identify trends and potential issues.

• Train maintenance staff on proper procedures and best practices to ensure efficient and effective maintenance.

• Utilize predictive maintenance ...read more

A substation is a facility used to transform voltage levels and distribute electricity to consumers.

• Substations receive high voltage electricity from power plants or transmission lines

• They transform the voltage to a lower level for distribution to homes and businesses

• Substations may also include equipment for switching, controlling, and protecting the power flow

• Examples of substations include step-down substations, distribution substations, and switching stations

Surge control in compressor is essential to prevent damage and maintain efficiency.

• Surge control involves monitoring and adjusting the flow rate of the compressor to prevent surging.

• Methods for surge control include using anti-surge valves, recycle valves, and variable speed drives.

• Surge control systems often use sensors to detect changes in pressure and flow rate, triggering adjustments to prevent surging.

• Proper surge control is crucial for maintaining the performance and lo...read more

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

Improving the process involves identifying bottlenecks, streamlining workflows, implementing automation, and seeking feedback from stakeholders.

• Identify bottlenecks in the current process and address them accordingly

• Streamline workflows to eliminate unnecessary steps and improve efficiency

• Implement automation tools to reduce manual tasks and increase productivity

• Seek feedback from stakeholders to understand pain points and areas for improvement

Handling work load requires effective time management, prioritization, delegation, and communication.

• Prioritize tasks based on urgency and importance

• Break down large tasks into smaller, manageable chunks

• Delegate tasks to team members based on their strengths and workload capacity

• Communicate clearly with colleagues and supervisors about workload and deadlines

• Use tools like to-do lists, calendars, and project management software to stay organized

A relay is an electrically operated switch that uses an electromagnet to mechanically control the switching of a circuit.

• Relays are used to control high power circuits with low power signals.

• They consist of a coil, armature, and contacts.

• Common types include electromagnetic relays, solid-state relays, and reed relays.

• Examples of relay applications include automotive starter solenoids and industrial control systems.

Siemens Energy is a global leader in energy technology with a strong focus on innovation and sustainability.

• Siemens Energy has a strong reputation for innovation and cutting-edge technology in the energy sector.

• The company is committed to sustainability and reducing carbon emissions, which aligns with my values and career goals.

• Siemens Energy offers opportunities for professional growth and development, with a global presence that provides diverse experiences.

• I admire Siemens...read more

Understanding the key principles and dynamics of the oil & gas industry.

• Oil & gas industry is heavily influenced by global supply and demand dynamics

• Key factors include geopolitical events, technological advancements, and environmental regulations

• Companies in this industry often face price volatility and regulatory challenges

• Major players include ExxonMobil, Shell, BP, and Chevron

Transformers are electrical devices that transfer energy from one circuit to another through electromagnetic induction.

• There are two main types of transformers: step-up transformers and step-down transformers.

• Step-up transformers increase voltage from the primary winding to the secondary winding.

• Step-down transformers decrease voltage from the primary winding to the secondary winding.

• Other types of transformers include isolation transformers, autotransformers, and instrument ...read more

I have extensive experience working with SAP, including implementation, customization, and troubleshooting.

• Implemented SAP modules such as FI/CO, MM, and SD

• Customized SAP reports and forms using ABAP programming language

• Troubleshot and resolved SAP system issues

• Trained end-users on SAP functionality and best practices