Torrent Power Technical Support Engineer Interview Questions and Answers

Tomarrow, power system

Machine power system drive

Q1. What is node js?
Ans. 
Node.js is a runtime environment that allows you to run JavaScript code outside of a web browser.
• Node.js is built on Chrome's V8 JavaScript engine.

• It uses an event-driven, non-blocking I/O model.

• Node.js is commonly used for building server-side applications.

• It has a large ecosystem of open-source libraries and frameworks like Express.js.
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Q2. What is event loop?
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Event loop is a mechanism that allows a program to efficiently handle multiple events or tasks concurrently.
• Event loop is commonly used in asynchronous programming to manage tasks that may take varying amounts of time to complete.

• It continuously checks for events or tasks in a queue and executes them one by one.

• Event loop helps prevent blocking of the main thread by allowing non-blocking execution of tasks.

• Popular exam...read more
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Q3. Difference between callback and promise?
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Callback is a function passed as an argument to another function to be executed later, while a promise is an object representing the eventual completion or failure of an asynchronous operation.
• Callback is used in traditional asynchronous programming, while promises are used in modern asynchronous programming.

• Callbacks can lead to callback hell or pyramid of doom, while promises provide better readability and error hand...read more
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Q4. What is middlewares in node js?
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Middlewares in Node.js are functions that have access to the request and response objects, and can modify or terminate the request-response cycle.
• Middlewares are functions that are executed in the middle of the request-response cycle.

• They can perform tasks like parsing request data, logging, authentication, etc.

• Middlewares can be added using app.use() method in Express framework.

• Example: app.use(bodyParser.json()) to p
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Q5. What is event emitter?
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Event emitter is a pattern used to handle and respond to events in software development.
• Event emitter is a design pattern commonly used in Node.js for handling events.

• It allows objects to subscribe to events and be notified when those events occur.

• Event emitter is often used for asynchronous programming and decoupling components.

• Example: EventEmitter class in Node.js can be used to create custom events and handle them.
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Q1. What are closed loop control system
Ans. 
Closed loop control systems are feedback systems that continuously monitor and adjust the output based on the desired input.
• Closed loop control systems use feedback to maintain a desired output

• They continuously monitor the output and compare it to the desired input

• Based on the comparison, adjustments are made to maintain the desired output

• Examples include thermostat-controlled heating systems and cruise control in cars
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Q2. Details of Field instruments
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Q1. Brief discussion on c&i
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Q2. How you will handle the situations
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Q3. What are expecting from us
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There is general aptitude test.

Q1. There is technical as well as process questions
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Q1. This is normal round with department head.
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Q1. Salary and other discussion
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Q1. Regarding previous experience
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Q1. What are the tests conducted on power transformers and their applications?
Ans. 
Tests conducted on power transformers include insulation resistance test, turns ratio test, and power factor test.
• Insulation resistance test checks the insulation of the transformer windings.

• Turns ratio test verifies the turns ratio between primary and secondary windings.

• Power factor test measures the efficiency of the transformer in converting power.

• Other tests include winding resistance test, transformer oil testing,
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Q2. What are the specifications for a 33 kV transmission line, and how can one select the appropriate specifications?
Ans. 
Specifications for a 33 kV transmission line and how to select appropriate specifications
• Specifications for a 33 kV transmission line include conductor size, insulation type, tower height, and distance between towers

• Conductor size should be chosen based on current carrying capacity and voltage drop considerations

• Insulation type should be selected based on environmental conditions and required insulation levels

• Tower hei...read more
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Q3. What is your job profile and what responsibilities does it entail?
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As an Assistant Manager, my job profile involves assisting the manager in overseeing daily operations, managing staff, and ensuring customer satisfaction.
• Assist manager in daily operations

• Manage staff and delegate tasks

• Ensure customer satisfaction and handle customer complaints

• Create work schedules and monitor employee performance
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Q4. What is relay coordination in electrical systems?
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Relay coordination in electrical systems is the process of ensuring that protective relays operate in a coordinated manner to isolate faults while minimizing disruption to the system.
• Relay coordination involves setting time-current curves for protective relays to ensure that the relay closest to the fault operates first.

• It is important to coordinate relays to prevent unnecessary tripping of healthy equipment during a f...read more
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