Oil And Natural Gas Corporation Summer Intern Interview Questions and Answers

Q1. First they shortlisted on the cgpa basis. Then technical + hr round was there. In which they ask for favourite subjects and all the question was from the same subject
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Q2. What will happen if we add petrol in diesel engine
Ans. 
Adding petrol in a diesel engine can cause damage to the engine and reduce its efficiency.
• Petrol has lower lubricating properties than diesel, leading to increased wear and tear on engine components.

• Petrol can cause damage to the fuel injection system and fuel pump.

• The engine may misfire or stall due to the different combustion properties of petrol and diesel.

• Running a diesel engine on petrol can result in overheating ...read more
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Q1. It was an on-campus opportunity
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Q1. Types of reactors
Ans. 
Types of reactors include batch, continuous stirred-tank, plug flow, and fluidized bed reactors.
• Batch reactors operate in a closed system with a fixed amount of reactants.

• Continuous stirred-tank reactors have continuous flow of reactants and products.

• Plug flow reactors have a continuous flow with no mixing along the length of the reactor.

• Fluidized bed reactors use a fluid to suspend solid particles, allowing for better
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Q2. Types of valves
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Valves are devices used to control the flow of fluids or gases in a system by opening, closing, or partially obstructing passageways.
• Types of valves include ball valves, gate valves, globe valves, butterfly valves, check valves, and pressure relief valves.

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

• Gate valves have a gate-like disc that moves up and down to control flow.

• Globe ...read more
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Q3. Question related to resume
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Q1. Why this company? what do you know about telecommunication?
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Q2. What are the microcontrollers you are familiar with?
Ans. 
I am familiar with microcontrollers such as Arduino, Raspberry Pi, and ESP8266.
• Arduino

• Raspberry Pi

• ESP8266
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First there was an initial shortlisting process, after that, we were called for an Apti test.There was total 6 rounds consists of 3 apti rounds which includes Quant,Reasoning&English.In the remaining three rounds 2 rounds was from my core subject that is Chemical Enginering and the last round was from Computer Network. The questions from Apti were on the easy side where as the qs from the Chemical engineering was on tougher side.

Basic aptitude questions were asked in ot along with technical questions.

Q1. How do u design a distillation column?
Ans. 
Designing a distillation column involves determining the required specifications, selecting appropriate materials, and optimizing the column design.
• Determine the desired separation specifications

• Select appropriate materials for the column

• Optimize the column design for efficiency and cost-effectiveness

• Consider factors such as pressure, temperature, and flow rate

• Perform simulations and calculations to ensure optimal perf
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Q2. What is azeotrope? Give an example.
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An azeotrope is a mixture of two or more liquids that boils at a constant temperature and has the same composition in vapor and liquid phase.
• Azeotropes cannot be separated by simple distillation.

• Examples include ethanol and water, which form an azeotrope at 95.6% ethanol and 4.4% water.

• Azeotropes are important in chemical engineering and can be used to purify chemicals.

• Azeotropes can be either minimum boiling or maximu...read more
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