Tamilnadu Petroproducts Graduate Trainee Interview Questions and Answers

Q1. Why chemical engineering
Ans. 
Passion for applying scientific principles to solve real-world problems in industries like pharmaceuticals, energy, and environmental protection.
• Fascination with the intersection of chemistry, physics, and mathematics

• Desire to innovate and optimize processes in industries such as pharmaceuticals, energy, and environmental protection

• Interest in tackling global challenges like climate change and sustainable energy produc...read more
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Q1. What is arrow function in JS
Ans. 
Arrow functions are a concise way to write functions in JavaScript.
• Arrow functions have a shorter syntax compared to regular functions.

• They do not have their own 'this' keyword, and instead inherit 'this' from the parent scope.

• Arrow functions are best suited for non-method functions, and cannot be used as constructors.

• Example: const add = (a, b) => a + b;
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Q2. What is runtime polymerphism
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Runtime polymorphism is the ability of a subclass to override a method from its superclass during runtime.
• Runtime polymorphism is achieved through method overriding in object-oriented programming.

• It allows a subclass to provide a specific implementation of a method that is already defined in its superclass.

• The actual method called is determined by the type of object at runtime.

• Example: Animal class has a method 'makeSo...read more
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Q3. What is abstraction in oops
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Abstraction in OOP is the concept of hiding complex implementation details and showing only the necessary features to the outside world.
• Abstraction allows us to focus on what an object does rather than how it does it

• It helps in reducing complexity and improving maintainability of code

• Example: A car is an abstraction of various components like engine, wheels, etc. Users interact with the car without needing to know the
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DSA questions Reverse the linkedlist

Q1. Explain your project
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Q2. He asked two SQL queries
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Only DSa and aptitude was asked

MCQ round on OOPS (java) , JS, C#, SQL(dbms)

Q1. Two DSA questions , Happy Number (leetcode Q.202) , First Unique character in String (leetcode Q.387)
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Q2. Polymorphism, Function Overloading & Overriding (code), Constructor, Access Specifier
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Q3. Project (about nextjs, diff. b/w next & react, advantage of nextjs, SPA, some discussion about tailwind, miui (library), js)
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Q4. DBMS query of second highest employee , find employeeid of manager whose employee name is 'something' (based on self join & only one table)
Ans. 
Use self join in a DBMS query to find the employeeid of the manager whose employee name is 'something'.
• Use a self join on the table to compare employee and manager names

• Order the results by employeeid in descending order to get the second highest employee

• Select the manager's employeeid where the employee name is 'something'
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Q1. What is your current role?
Ans. 
I am currently working as a Business Analyst at a technology company.
• Analyzing business processes and requirements

• Creating reports and dashboards for stakeholders

• Collaborating with cross-functional teams to gather and analyze data
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Q2. About basic finance
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Q1. What is hedge fund?
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A hedge fund is an investment fund that pools capital from accredited individuals or institutional investors and invests in a variety of assets.
• Hedge funds are typically only available to accredited investors due to their complex and risky nature.

• They often use leverage and derivatives to amplify returns.

• Hedge funds charge both a management fee and a performance fee based on the fund's profits.

• They can invest in a wide...read more
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Q2. What are derivatives ?
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Derivatives are financial instruments whose value is derived from an underlying asset or group of assets.
• Derivatives can be used for hedging, speculation, or arbitrage.

• Common types of derivatives include options, futures, forwards, and swaps.

• Derivatives allow investors to take positions on the price movements of assets without owning the assets themselves.

• They are often used to manage risk in financial markets.

• Derivati...read more
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Q1. Why do you wan to change?
Ans. 
Seeking new challenges and opportunities for growth.
• Desire for professional growth and development

• Interest in exploring new industries or sectors

• Seeking a more collaborative work environment

• Opportunity to work on more impactful projects

• Desire for better work-life balance
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Q2. Salary discussion
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