Balmer Lawrie Engineer Trainee Interview Questions and Answers

Q1. Introduction in deep
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Q2. Project related
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Q1. Subject related
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Q2. Units of mechanical Engineer
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Units of mechanical engineering include force (Newton), pressure (Pascal), energy (Joule), power (Watt), and temperature (Kelvin).
• Force is measured in Newton (N)

• Pressure is measured in Pascal (Pa)

• Energy is measured in Joule (J)

• Power is measured in Watt (W)

• Temperature is measured in Kelvin (K)
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Technical and aptitude of 150 marks

Group task elimination round

Q1. Tell me about yourself
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Q1. Final year project
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Q1. I was asked to make a presentation on laser technology.
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Knowledge of the English language, its vocabulary and comprehension. Ability to solve basic mathematical problem, which shows the capacity to use an analytical approach to everyday puzzles.

Should health services in India be provided for free?

General aptitude questions , pnc, probability , time work etc

Q1. Heat Transfer theorems
Ans. 
Heat transfer theorems are principles that govern the transfer of heat from one object to another.
• Fourier's Law of Heat Conduction states that the rate of heat transfer through a material is proportional to the negative gradient of the temperature and the area normal to that gradient.

• Newton's Law of Cooling describes the rate of heat loss from a body to its surroundings due to convection.

• Stefan-Boltzmann Law states tha...read more
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Q2. Mass Transfer models
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Q1. Tell me about your self introduced
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My GD topic was renewable energy.

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++
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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
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Q3. What do your parents do
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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
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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
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Q5. How did you reach Noida for interview
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Q6. Where are you staying in Noida for interview process
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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
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Q7. Related family background
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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.
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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
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Q3. Detailed refrigeration cycles
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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...read more
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Q4. Safety related questions which I couldn't answer well
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Q5. Safety procedures before starting of hot job
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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
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Q6. Furnace tubes Welding related questions
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Q7. Scaffolding and insulation related general questions (easy)
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