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Bharat Petroleum Interview Questions and Answers
133 Interview questions
Boyle's Law relates pressure and volume of gas, while Charles's Law relates volume and temperature.
Boyle's Law: P1V1 = P2V2 (Pressure inversely proportional to volume at constant temperature). Example: Syringe action.
Charles's Law: V1/T1 = V2/T2 (Volume directly proportional to temperature at constant pressure). Example: Balloon expanding in heat.
Both laws are fundamental in understanding gas behavior in physics a...
The Joule-Thomson effect describes the temperature change of a gas when it expands or is compressed without heat exchange.
Occurs when a gas expands or is compressed at constant enthalpy.
For most gases, expansion leads to cooling (negative Joule-Thomson coefficient).
Example: Cooling of gases in refrigeration systems.
Some gases, like helium, can heat up upon expansion (positive Joule-Thomson coefficient).
Used in liq...
P&ID for a heat exchanger includes symbols for valves, pumps, and flow direction for process control.
Heat Exchanger: Symbolized by two parallel lines with a heat transfer symbol.
Non-Return Valve (NRV): Represented by a triangle pointing in the flow direction.
Control Valve: Shown as a circle with a diagonal line, indicating flow regulation.
Globe Valve: Depicted as a circle with a 'V' shape inside, used for thro...
The operating pressure of VGO-HDT in BPCL is crucial for optimizing hydrocracking processes.
VGO-HDT stands for Vacuum Gas Oil Hydrocracking Unit.
Typical operating pressures range from 50 to 200 bar.
Higher pressures can enhance the conversion of heavy oils.
BPCL may adjust pressures based on feedstock and desired product specifications.
Crude Distillation Unit separates crude oil into various fractions based on boiling points through heating and condensation.
Heating: Crude oil is heated in a furnace to around 350-400°C.
Distillation Column: The heated oil enters a distillation column where it rises and cools.
Fractionation: Different components separate based on boiling points; lighter fractions rise to the top.
Collection: Fractions like gasoline, ...
P&ID (Piping and Instrumentation Diagram) details system components, while PFD (Process Flow Diagram) provides a high-level overview.
P&ID includes detailed information about piping, valves, and instrumentation.
PFD focuses on the overall process flow and major equipment.
Example: P&ID shows control loops and safety systems; PFD shows the sequence of operations.
P&ID is used for construction and mainte...
Heat transfer occurs via conduction, convection, and radiation, each governed by specific laws.
Conduction: Transfer of heat through a solid material. Example: A metal spoon getting hot in a pot of boiling water.
Convection: Transfer of heat through fluids (liquids or gases) due to movement. Example: Warm air rising in a room.
Radiation: Transfer of heat through electromagnetic waves. Example: Feeling warmth from the...
Increasing production involves optimizing processes, enhancing workforce efficiency, and utilizing technology effectively.
Implement Lean Manufacturing principles to reduce waste and improve efficiency.
Invest in automation technologies, such as robotics, to speed up production lines.
Enhance employee training programs to improve skills and productivity.
Conduct regular maintenance on machinery to prevent downtime.
Uti...
Effective people management involves communication, motivation, and conflict resolution to foster a productive work environment.
Establish clear communication: Regular team meetings to discuss progress and challenges.
Set achievable goals: Use SMART criteria to define objectives, ensuring everyone understands their roles.
Encourage collaboration: Foster teamwork through group projects, enhancing problem-solving and i...
To cancel a cash memo, follow the established procedures for returns or cancellations in your organization.
Verify the cash memo details: Ensure you have the correct memo number and associated transaction.
Check company policy: Review the guidelines for cancellations to ensure compliance.
Initiate the cancellation process: This may involve filling out a cancellation form or notifying a supervisor.
Document the reason ...
Bharat Petroleum Interview Experiences
161 interviews found
Research Engineer / Scientist Interview Questions & Answers
Aniruddha Kulkarni
posted on 20 Apr 2018
I applied via Campus Placement and was interviewed before Apr 2017. There were 5 interview rounds.
Interview Questionnaire
13 Questions
- Q1. 1. Tell me about yourself.
- Ans.
I am a research engineer with a background in mechanical engineering and a passion for developing innovative solutions.
Completed a Master's degree in Mechanical Engineering from XYZ University
Published research papers on renewable energy systems
Experience working on projects related to fluid dynamics and heat transfer
Proficient in using simulation software such as ANSYS and MATLAB
- Q2. 2. M. Tech Project presentation. - 15 Mins
- Q3. 3. What is heat exchanger? Mass balance and energy balance equation of for the heat exchanger ? How to design an heat exchanger ?
- Ans.
A heat exchanger is a device used to transfer heat between two or more fluids.
Heat exchangers are commonly used in various industries, such as HVAC, chemical processing, and power generation.
They can be classified into different types based on their construction and flow arrangement, such as shell and tube, plate, and finned.
The mass balance equation for a heat exchanger states that the mass flow rate of fluid entering...
- Q4. 4. What is carnot cylce ? Derive the equation for the efficiency of carnot cycle.
- Ans.
The Carnot cycle is a theoretical thermodynamic cycle that describes the most efficient heat engine possible.
The Carnot cycle consists of four reversible processes: isothermal expansion, adiabatic expansion, isothermal compression, and adiabatic compression.
The efficiency of the Carnot cycle is given by the equation: efficiency = 1 - (Tc/Th), where Tc is the temperature of the cold reservoir and Th is the temperature o...
- Q5. 5. What is I. C. Engine ? Otto Cycle ? Diesel Cycle?
- Ans.
I.C. Engine is an internal combustion engine that converts chemical energy into mechanical energy. Otto Cycle and Diesel Cycle are two types of I.C. Engines.
I.C. Engine stands for Internal Combustion Engine.
It is a type of engine that converts chemical energy into mechanical energy.
Otto Cycle is a type of I.C. Engine used in gasoline/petrol engines.
It consists of four strokes: intake, compression, power, and exhaust.
Di...
- Q6. 6. What you have done in the B. Tech Project?
- Ans.
In my B. Tech project, I developed a machine learning algorithm for predicting stock prices.
Researched various machine learning models suitable for stock price prediction
Collected and preprocessed historical stock market data for training the algorithm
Implemented the algorithm using Python and libraries like TensorFlow and scikit-learn
Evaluated the performance of the algorithm through backtesting and comparison with ex...
- Q7. Director (Refineries), Director(HR), Head(R&D), ICT Professor - BPCL Chair Person were there in the interview panel.
- Q8. Tell me about yourself.
- Ans.
I am a research engineer with a background in mechanical engineering and a passion for developing innovative solutions.
Completed a Master's degree in Mechanical Engineering
Published research papers on renewable energy technologies
Experience working on projects involving fluid dynamics and heat transfer
Proficient in using simulation software such as ANSYS and MATLAB
- Q9. Question by Director(HR) - You are the youngest person in the candidates and if you got selected in BPCL R&D, you will be the youngest one in the R&D Centre and all other people are 30+ in age, will you ab...
- Q10. Question by Director(Refinery) - What is your preference to work ? If R&D then why not in refinery.
- Q11. Tell us in brief about your M. Tech project.
- Ans.
Developed a machine learning model for predicting stock prices using LSTM neural networks.
Implemented LSTM neural networks in Python using TensorFlow library
Collected and preprocessed historical stock price data for training the model
Evaluated the model performance using metrics like Mean Squared Error and Accuracy
Optimized hyperparameters to improve prediction accuracy
- Q12. Tell us in brief about your B. Tech project
- Ans.
Designed and implemented a smart irrigation system using IoT technology
Researched different sensors for measuring soil moisture and temperature
Developed a mobile application for users to monitor and control the irrigation system remotely
Implemented machine learning algorithms to predict optimal watering schedules
Conducted field tests to validate the system's effectiveness
Collaborated with agricultural experts to ensure...
- Q13. What is bio-diesel ? and what is Lubricity properties of bio-diesel?
- Ans.
Bio-diesel is a renewable fuel made from vegetable oils or animal fats. Lubricity is its ability to reduce friction and wear in engines.
Bio-diesel is a type of fuel that is derived from renewable sources such as vegetable oils or animal fats.
It is produced through a process called transesterification, where the fats or oils are chemically reacted with an alcohol to form bio-diesel and glycerin.
Bio-diesel can be used as...
Interview Preparation Tips
Experience: Minimum CGPA Required - 7.5/10
BPCL R&D has given the detailed description about job profile in the notice. My M. Tech project work and job description is almost in line. So I have got the call for the interview.
General Tips: I had got very good experience while going through 2 interviews of BPCL R&D. Interviewer will check about your concepts and knowledge about the subject. I was last person to attend the interview in both the rounds. Please brush up your concepts and give brief presentation on the work you have done during your M. Tech and B. Tech project. All the best for your interview.
Skills: Communication, Body Language, Problem Solving, Analytical Skills, Leadership, Presentation Skills, Time Management, Decision Making Skills
Duration: 1-3 Months
College Name: IIT Madras
Skills evaluated in this interview
Selected
I appeared for an interview in Jul 2023, where I was asked the following questions.
- Q1. What are the fundamental concepts of Chemical Engineering pertaining to heat transfer, fluid mechanics, mass transfer, and thermodynamics?
- Q2. Can you provide a brief overview of your academic project and explain how it applies to today's industry?
Interview Preparation Tips
Selected
I appeared for an interview in Mar 2025, where I was asked the following questions.
- Q1. How to do gas delivery from the system and how to cancel delivery and how to do booking, how to cancel booking and how to do delivery confirmation, how to enter delivery and how to cancel delivery in cash ...
- Ans.
Gas delivery involves booking, confirming, and managing deliveries, including cancellations and payment methods.
To book a gas delivery, access the system and select 'Book Delivery', then enter customer details and delivery address.
To cancel a delivery, navigate to 'Manage Deliveries', find the scheduled delivery, and select 'Cancel'.
Delivery confirmation can be done by accessing 'Delivery Status' and marking the delive...
- Q2. Which area he has to go to for cutting which place and by selecting which thing he can send the delivery man to which area and how to receive the complaint and how to close the complaint
- Q3. How to cancel a delivery
- Ans.
To cancel a delivery, follow the company's cancellation policy and communicate promptly with the relevant parties involved.
Check Cancellation Policy: Review the company's terms regarding delivery cancellations to understand the timeframe and conditions.
Contact Customer Service: Reach out to the customer service team via phone or email to request the cancellation.
Provide Order Details: Have your order number and relevan...
- Q4. How to cancel a cash memo
- Ans.
To cancel a cash memo, follow the established procedures for returns or cancellations in your organization.
Verify the cash memo details: Ensure you have the correct memo number and associated transaction.
Check company policy: Review the guidelines for cancellations to ensure compliance.
Initiate the cancellation process: This may involve filling out a cancellation form or notifying a supervisor.
Document the reason for c...
- Q5. How to book gas from the system
- Ans.
Booking gas from the system involves accessing the application, entering details, and confirming the order for delivery.
Access the Gas Booking System: Log in to the application using your credentials.
Select Service Type: Choose the type of gas service you need, such as domestic or commercial.
Enter Customer Details: Fill in the required information, including name, address, and contact number.
Specify Quantity: Indicate ...
Interview Preparation Tips
I applied via Campus Placement and was interviewed in Oct 2024. There was 1 interview round.
(2 Questions)
- Q1. Which motor is used in fans
- Ans.
The motor used in fans is typically an induction motor.
Induction motors are commonly used in fans due to their simplicity, reliability, and cost-effectiveness.
These motors work on the principle of electromagnetic induction to generate rotational motion.
Examples of induction motors used in fans include single-phase and three-phase motors.
Fan motors are usually designed to be energy-efficient and have varying speeds for ...
- Q2. What is fuse and tell the type of pins used?
- Ans.
A fuse is a safety device that protects electrical circuits from overcurrent. The type of pins used depend on the specific fuse design.
A fuse is a thin wire or strip of metal that melts when excessive current flows through it, breaking the circuit and preventing damage.
There are different types of fuses such as cartridge fuses, blade fuses, and glass-tube fuses, each with their own unique pin configurations.
Cartridge f...
Interview Preparation Tips
- Electrical Machines
- power systems
I applied via Campus Placement and was interviewed in Oct 2024. There was 1 interview round.
(2 Questions)
- Q1. Which motor is used in fan?
- Ans.
The motor used in fans is typically an induction motor.
Induction motors are commonly used in fans due to their simplicity and reliability.
The most common type of induction motor used in fans is the single-phase induction motor.
Some high-end fans may use brushless DC (BLDC) motors for energy efficiency and quiet operation.
- Q2. What is fuse and types of pins in it?
- Ans.
A fuse is a safety device that protects electrical circuits from overcurrent. Types of pins in a fuse include blade, cartridge, and glass.
Blade fuses have flat blades that fit into slots in the fuse block
Cartridge fuses are cylindrical in shape and have metal end caps
Glass fuses have a glass tube with metal caps on both ends
Interview Preparation Tips
Selected
I appeared for an interview in Jun 2025, where I was asked the following questions.
- Q1. Presonal detals and other question
- Q2. Skil test and other question
I applied via Campus Placement and was interviewed in Jul 2024. There were 2 interview rounds.
(3 Questions)
- Q1. Tell me about yourself
- Ans.
I am a dedicated Mechanical Engineer with a passion for problem-solving and innovation.
Graduated with a degree in Mechanical Engineering from XYZ University
Experienced in designing and testing mechanical systems
Proficient in CAD software such as SolidWorks and AutoCAD
Strong analytical skills and attention to detail
Worked on projects like designing a new cooling system for a car engine
- Q2. Favorite subject
- Ans.
My favorite subject is Thermodynamics because I enjoy studying the transfer of energy and heat.
I find the laws of thermodynamics fascinating
I enjoy analyzing heat transfer processes
I like studying the relationship between energy and work
- Q3. Scavenging, spoliers, gas cycles, etc.
(2 Questions)
- Q1. Biggest achievement
- Ans.
Designed and implemented a new cooling system for a high-performance engine, increasing efficiency by 15%.
Led a team of engineers to analyze current cooling system performance
Designed a new cooling system using advanced simulation software
Implemented the new system on a prototype engine and conducted performance tests
Achieved a 15% increase in efficiency compared to the previous system
- Q2. Have you any time involved in decision making, can be during any task
- Ans.
Yes, I have been involved in decision making during various tasks.
I have made decisions regarding design changes in projects to improve efficiency.
I have been part of a team that had to decide on the best approach to solve a technical problem.
I have made decisions on prioritizing tasks to meet project deadlines.
I have been involved in selecting the most suitable materials for a project based on cost and performance req...
Interview Preparation Tips
I applied via Recruitment Consulltant and was interviewed in Dec 2024. There were 2 interview rounds.
Asked us how can we improve BPCL customer experience via tech.
(1 Question)
- Q1. Went through our resume, asked questions from it only, very basic questions.
Selected
I appeared for an interview in Feb 2025, where I was asked the following questions.
- Q1. Why should we hire you
- Ans.
I bring a proven track record in sales, strong communication skills, and a passion for building lasting client relationships.
Proven sales success: Consistently exceeded sales targets by 20% in my previous role.
Strong communication skills: Developed rapport with clients, leading to a 30% increase in repeat business.
Adaptability: Quickly learned about new products and markets, enabling me to effectively pitch to diverse ...
- Q2. What do you think what is important hard work and smart work
- Ans.
Both hard work and smart work are essential; they complement each other for achieving optimal results in sales.
Hard work involves putting in the hours and effort, like making numerous cold calls to potential clients.
Smart work focuses on efficiency, such as using CRM tools to track leads and prioritize follow-ups.
A successful sales strategy combines both; for example, working hard to meet targets while smartly analyzin...
- Q3. Whats make you unique
- Ans.
My unique blend of skills, experience, and passion for sales sets me apart in the field, driving results and building lasting relationships.
Strong communication skills: I excel in conveying complex ideas simply, which helps in connecting with clients effectively.
Proven track record: In my previous role, I consistently exceeded sales targets by 20%, showcasing my ability to drive results.
Adaptability: I thrive in dynami...
- Q4. What are you leaving your current job
- Ans.
I'm leaving my current job to seek new challenges and opportunities for growth in a dynamic sales environment.
Desire for professional growth: I've reached a plateau in my current role and am eager to take on more responsibilities.
Seeking a more dynamic environment: My current job lacks the fast-paced atmosphere I thrive in, which I believe is crucial for my success.
Alignment with career goals: The Field Sales Executive...
- Q5. What do you want to work here
- Ans.
I want to work here to leverage my sales skills, contribute to team success, and grow within a dynamic company culture.
I admire your company's commitment to innovation, which aligns with my passion for staying ahead in the market.
The opportunity to work with a diverse client base excites me, as I enjoy building relationships and understanding customer needs.
I am impressed by your training programs and career developmen...
Interview Preparation Tips
Kamlesh Mali
Selected
I appeared for an interview in Mar 2025, where I was asked the following questions.
- Q1. How increase production
- Ans.
Increasing production involves optimizing processes, enhancing workforce efficiency, and utilizing technology effectively.
Implement Lean Manufacturing principles to reduce waste and improve efficiency.
Invest in automation technologies, such as robotics, to speed up production lines.
Enhance employee training programs to improve skills and productivity.
Conduct regular maintenance on machinery to prevent downtime.
Utilize ...
- Q2. How manage people
- Ans.
Effective people management involves communication, motivation, and conflict resolution to foster a productive work environment.
Establish clear communication: Regular team meetings to discuss progress and challenges.
Set achievable goals: Use SMART criteria to define objectives, ensuring everyone understands their roles.
Encourage collaboration: Foster teamwork through group projects, enhancing problem-solving and innova...
I applied via Job Portal
(3 Questions)
- Q1. Diploma in chemical engineering related questions ask to me in technical language
- Q2. What is your favourite subject in diploma
- Q3. Explain in any one subject
(2 Questions)
- Q1. What is your personal details
- Ans.
I am a dedicated chemistry graduate with a passion for lab work and a strong interest in energy solutions.
Graduated with a degree in Chemistry from XYZ University, where I focused on organic chemistry.
Completed an internship at ABC Labs, where I conducted experiments on fuel efficiency.
Participated in a research project on renewable energy sources, presenting findings at a national conference.
Skilled in using various l...
- Q2. I explain my personal details I am ayush Kumar Sharma And I am from mirzapur UP I have done diploma in chemical engineering government polytechnic barabanki
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