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Biofuels Junction Site Engineer Mechanical Interview Questions, Process, and Tips
Biofuels Junction Site Engineer Mechanical Interview Experiences
1 interview found
Anonymous
Selected
I applied via Referral and was interviewed in Aug 2023. There were 2 interview rounds.
(6 Questions)
- Q1. How to identify BFP section and discharge line .if only see pipe line
- Ans.
BFP section and discharge line can be identified by looking at the pipe size, location, and direction of flow.
Check the pipe size - BFP section typically has larger diameter pipes compared to discharge lines.
Look at the location - BFP section is usually located near the pump or boiler room.
Check the direction of flow - BFP section will have pipes leading towards the pump or boiler.
Consider any labels or markings on the...
- Q2. Major losses in boiler .
- Ans.
Major losses in boiler refer to energy losses that occur during the operation of a boiler due to various factors.
Major losses in boiler include radiation losses, convection losses, and exhaust gas losses.
Radiation losses occur due to heat being lost through the boiler walls and surroundings.
Convection losses happen when hot gases leave the boiler without transferring all their heat to the water.
Exhaust gas losses occur...
- Q3. How many safety valve is used in boiler.
- Ans.
Typically, a boiler will have multiple safety valves installed for redundancy and safety purposes.
Boilers usually have at least two safety valves for redundancy in case one fails.
The number of safety valves can vary depending on the size and type of boiler.
Larger industrial boilers may have multiple safety valves to ensure proper pressure relief.
Some boilers may have three or more safety valves for added safety measure
- Q4. Which safety valve has more pressure to blow and how much pressure
- Ans.
Safety valves with higher pressure to blow are typically set at 10-15% above the operating pressure.
Safety valves with higher pressure to blow are usually set at 10-15% above the operating pressure to ensure they open only in case of overpressure.
For example, if the operating pressure is 100 psi, the safety valve may be set to blow at 110-115 psi.
This ensures that the safety valve only opens when the system is truly at...
- Q5. The maximum temperature of water in deareator tank
- Ans.
The maximum temperature of water in a deareator tank is typically around 105-110 degrees Celsius.
The maximum temperature is important for ensuring proper deaeration of water in the tank.
Exceeding the maximum temperature can lead to damage to the tank and equipment.
Regular monitoring and maintenance are necessary to ensure the temperature stays within the safe range.
- Q6. The calorific value of fuel
- Ans.
The calorific value of fuel is the amount of heat energy released per unit mass of fuel burned.
Calorific value is typically measured in units like kilojoules per kilogram (kJ/kg) or British thermal units per pound (BTU/lb).
Higher calorific value indicates more energy content in the fuel.
Different fuels have different calorific values, for example, coal has a higher calorific value than wood.
Calorific value is important...
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Interview questions from similar companies
Selected
I applied via Naukri.com and was interviewed in May 2024. There were 2 interview rounds.
Analysis , graph , dp , recursion
Array, string, graph
Selected
I applied via Company Website and was interviewed in Jan 2024. There were 3 interview rounds.
My GD topic was renewable energy.
(7 Questions)
- Q1. Tell me about yourself
- Ans.
I am a Senior Engineer with 10+ years of experience in designing and implementing complex systems.
10+ years of experience in engineering
Specialize in designing and implementing complex systems
Strong problem-solving skills
Experience with various programming languages such as Java, Python, and C++
- Q2. Why do you want to leave your previous company and join GAIL
- Ans.
Seeking new challenges and growth opportunities at GAIL.
Desire for new challenges and opportunities for growth
Interested in working in a different industry or with different technologies
Attracted to GAIL's reputation and projects
Seeking a more collaborative and innovative work environment
- Q3. What do your parents do
- Ans.
My parents are both retired now, but my father used to work as a civil engineer and my mother was a teacher.
Father worked as a civil engineer
Mother was a teacher
Both are retired now
- Q4. Have you ever visited Delhi earlier
- Ans.
Yes, I have visited Delhi earlier for a business trip.
Visited Delhi for a business trip
Explored historical sites like Red Fort and Qutub Minar
Enjoyed local cuisine like butter chicken and chaat
- Q5. How did you reach Noida for interview
- Q6. Where are you staying in Noida for interview process
- Ans.
I am staying at a hotel in Sector 18, Noida for the interview process.
Staying at a hotel in Sector 18, Noida
Close to the interview location
Comfortable accommodation for the duration of the process
- Q7. Related family background
(7 Questions)
- Q1. Detailed technical questions about bearing, pump, furnace tubes (1st and 2nd pass)MOC, TLE MOC, heat exchanger tube MOC, TEMA codes and classification etc.
- Q2. Decoking process of cracking furnace, Naphtha circuit of furnace with sketches,
- Ans.
Decoking process involves removing coke deposits from cracking furnace and naphtha circuit to maintain efficiency.
Decoking process involves burning off coke deposits using controlled combustion.
Mechanical decoking involves using high-pressure water jets to remove coke deposits.
Chemical decoking involves using solvents or acids to dissolve coke deposits.
Regular decoking is essential to prevent blockages and maintain fur
- Q3. Detailed refrigeration cycles
- Ans.
Refrigeration cycles are thermodynamic processes used in refrigerators and air conditioners to transfer heat from a low temperature reservoir to a high temperature reservoir.
Refrigeration cycles typically involve four main components: compressor, condenser, expansion valve, and evaporator.
The refrigerant undergoes a cycle of compression, condensation, expansion, and evaporation to absorb heat from the space being coole...
- Q4. Safety related questions which I couldn't answer well
- Q5. Safety procedures before starting of hot job
- Ans.
Safety procedures before starting a hot job include obtaining a hot work permit, conducting a hazard assessment, ensuring proper ventilation, and having fire extinguishing equipment nearby.
Obtain a hot work permit before starting any hot job
Conduct a hazard assessment to identify potential risks
Ensure proper ventilation in the work area to prevent buildup of flammable gases
Have fire extinguishing equipment nearby and r
- Q6. Furnace tubes Welding related questions
- Q7. Scaffolding and insulation related general questions (easy)
Interview Preparation Tips
(1 Question)
- Q1. What is rtdand thermocouple
- Ans.
RTD and thermocouple are types of temperature sensors used in various industries.
RTD stands for Resistance Temperature Detector and uses the principle of change in electrical resistance with temperature to measure temperature.
Thermocouple uses the principle of Seebeck effect where a voltage is generated when two dissimilar metals are joined at two junctions and exposed to different temperatures.
RTD is more accurate and...
(1 Question)
- Q1. Why should we hire you?
Interview Preparation Tips
More learning
I applied via Company Website and was interviewed before Sep 2021. There were 2 interview rounds.
(2 Questions)
- Q1. How will you identify if a pump is cavitating while working on a DCS panel?
- Ans.
To identify if a pump is cavitating while working on a DCS panel, you can look for certain indicators.
Monitor the pump's suction pressure. If it is fluctuating or dropping below the specified range, it may indicate cavitation.
Check the pump's discharge pressure. If it is higher than normal, it could be a sign of cavitation.
Listen for unusual noises such as a rattling or grinding sound coming from the pump.
Inspect the p...
- Q2. How would you prepare a hydrocarbon vessel for vessel entry?
- Ans.
To prepare a hydrocarbon vessel for vessel entry, follow these steps:
Ensure the vessel is properly isolated from the process and all sources of energy
Ventilate the vessel to remove any flammable or toxic gases
Perform a thorough inspection of the vessel for any signs of leaks or damage
Implement proper lockout/tagout procedures to prevent accidental activation of equipment
Provide appropriate personal protective equipment...
Interview Preparation Tips
- Chemical Engineering
- DCS Operations
I applied via Naukri.com and was interviewed in Nov 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. How will you analyse the total consumption of diesel in equipment
- Ans.
To analyse total diesel consumption in equipment, I would gather data on usage and calculate fuel efficiency.
Collect data on equipment usage and fuel consumption
Calculate fuel efficiency by dividing fuel consumption by equipment usage
Compare fuel efficiency across different equipment to identify outliers
Identify factors that may affect fuel efficiency, such as maintenance or operator behavior
Interview Preparation Tips
Assistant Manager Interview Questions & Answers
Adani Green Energy
Dinesh Nagar
posted on 29 Aug 2023
Selected
I applied via Naukri.com and was interviewed before Aug 2022. There were 5 interview rounds.
There is general aptitude test.
(1 Question)
- Q1. There is technical as well as process questions
(1 Question)
- Q1. This is normal round with department head.
(1 Question)
- Q1. Salary and other discussion
Selected
I applied via Referral and was interviewed in Sep 2023. There was 1 interview round.
(1 Question)
- Q1. Regarding previous experience
(2 Questions)
- Q1. Introduce your self
- Q2. Why only hpcl why not bpcl
- Ans.
I have a strong interest in the oil and gas industry, and HPCL aligns more closely with my career goals and values.
HPCL offers a wider range of career opportunities in the oil and gas sector compared to BPCL.
I have researched HPCL extensively and believe that their company culture and values are a better fit for me.
HPCL has a stronger presence in the market and offers more room for growth and development.
(3 Questions)
- Q1. Net positive suction head
- Q2. Distillation column
- Q3. Absorption tower
Interview Preparation Tips
CHIRANJI LAL
(2 Questions)
- Q1. Transformer releted protection and testing
- Q2. Relay protection
(2 Questions)
- Q1. Salary discussed
- Q2. All releted document
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Biofuels Junction Site Engineer Mechanical Interview Process
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