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Lummus Technology Heat Transfer B.V. Interview Questions and Answers
Lummus Technology Heat Transfer B.V. Interview Experiences
3 interviews found
Anonymous
Core questions were asked especially from distillation and fluid mechanics.
Process Engineer Interview Questions asked at other Companies
I was interviewed in Oct 2023.
Both aptitude questions and technical questions were asked.questions were gate 1 marks and theory level
(1 Question)
- Q1. 1) effect of pressure on distillation column 2)draw bubble cap tray
- Ans.
Pressure affects the efficiency and performance of a distillation column. Bubble cap trays are used to facilitate the separation process.
Pressure affects the boiling point of the components in the distillation column, impacting separation efficiency.
Higher pressure can increase the number of theoretical plates required for separation.
Bubble cap trays are designed to allow vapor to pass through while trapping liquid, ai...
Interview Preparation Tips
Process Engineer Interview Questions asked at other Companies
I applied via Referral and was interviewed before Jun 2021. There was 1 interview round.
(2 Questions)
- Q1. How to decide column pressure ?
- Ans.
Column pressure is decided based on the desired separation and the properties of the feed mixture.
Consider the boiling points of the components in the feed mixture
Determine the desired degree of separation
Take into account the equipment limitations and safety factors
Perform simulations to optimize the column pressure
Adjust the pressure as needed during operation
- Q2. Where do you provide pressure and temperature breaks in P&IDs ?
- Ans.
Pressure and temperature breaks are provided in P&IDs at critical points to ensure safety and prevent equipment damage.
Pressure and temperature breaks are typically provided at equipment such as pumps, compressors, and heat exchangers.
They are also provided at points where the process fluid changes phase, such as at the inlet and outlet of distillation columns.
Pressure and temperature breaks are indicated on P&IDs usin...
Interview Preparation Tips
- Columns
- Vessels
- PSV Sizing
- Pumps
They may also ask you to explain a PFD for any Technology you have worked upon previously.
Mostly interview will be based on your industry experience.
Senior Process Engineer Interview Questions asked at other Companies
Jobs at Lummus Technology Heat Transfer B.V.
Interview questions from similar companies
Interview Preparation Tips
Experience: CPI based shortlisting. Around 6-7 people from MME with CPI > 7.9 were shortlisted.
Round: Interview (Telephonic)
Experience: Duration: 10-15 minutes
Questions :
1. Name
2. Resume Based Questions
3. Internships and projects
4. Technical Questions
5. Favorite Subject and questions on that
6. BTP
General Tips: 1. Choose which subject you will say as your favorite and prepare that thoroughly.
2. Read Proforma of company and prepare accordingly.
3. It is most secure if you can direct the interviewer to ask questions about your internships and projects, because that is something you know better than him/her.
4. Prepare puzzles etc. generally asked in interviews.
5. Keep a Positive Attitude in general. Have an attitude of “I don’t need the company, the company needs me”.
Skill Tips: This company basically needed only 1 MME student was selected - who did both his interns and projects in ‘Modeling and Simulation’.
Skills: Thermodynamics of Materials, Characterization, Manufacturing Processes ,
College Name: IIT- Kanpur
Interview Questionnaire
1 Question
- Q1. Why Mechanical Engineering?
- Ans.
Mechanical Engineering offers a diverse range of opportunities to apply scientific principles to solve real-world problems.
Mechanical Engineering provides a strong foundation in math, physics, and materials science.
It offers a wide range of career opportunities in various industries such as automotive, aerospace, and manufacturing.
Mechanical Engineers design and develop machines, tools, and systems that improve our dai...
Interview Preparation Tips
Experience: Questions related to courses of Design, MOS, TOM. It had tough MCQ’s based on formulae that had to be memorized and were calculation intensive.
Round: Technical Interview
Experience: it was a 45-minute round with questions about yourself, CPI and extra-curricular activities.
Round: HR Interview
Experience: Questions based on resume, internship and 2nd and 3rd year related projects. Short discussion on Extra-curricular activities.
College Name: IIT KANPUR
I applied via Job Portal and was interviewed in Jan 2023. There were 3 interview rounds.
Technical based interview.
Heat exchanger mainly in focus
(5 Questions)
- Q1. Explain the details about heat exchanger.
- Ans.
Heat exchanger is a device used to transfer heat between two or more fluids.
Heat exchangers are used in various industries such as chemical, petrochemical, power generation, and HVAC.
They can be classified into different types such as shell and tube, plate and frame, and spiral.
The fluids can be in direct contact or separated by a wall depending on the application.
Heat exchangers can be designed for different purposes ...
- Q2. Explain LMTD,HEAT LOAD CALCULATIONS,
- Ans.
LMTD is a temperature difference used in heat exchanger design. Heat load calculations determine the amount of heat transferred.
LMTD stands for Logarithmic Mean Temperature Difference and is used to calculate the temperature difference between two fluids in a heat exchanger.
Heat load calculations are used to determine the amount of heat transferred in a system.
Factors such as flow rate, temperature, and specific heat c...
- Q3. Explains use in calculation units.
- Ans.
Units are used in calculations to ensure consistency and accuracy.
Units provide a standard of measurement for calculations.
They ensure consistency and accuracy in calculations.
Units can be converted to other units using conversion factors.
Examples of units include meters, seconds, kilograms, and moles.
- Q4. Explain Pipeline size calculation and assumed velocities for different cases?
- Ans.
Pipeline size calculation involves determining the diameter of the pipeline based on the flow rate and velocity of the fluid.
Pipeline size is calculated based on the required flow rate and the velocity of the fluid.
The velocity of the fluid is determined based on the type of fluid and the purpose of the pipeline.
Assumed velocities for different cases are based on industry standards and regulations.
For example, the assu...
- Q5. Asked about yourself and family background.
Interview Preparation Tips
Selected
I was interviewed before Feb 2024.
(1 Question)
- Q1. About heat exchanger
(1 Question)
- Q1. जनरल hr qutions
I applied via Naukri.com and was interviewed in Jan 2022. There were 3 interview rounds.
(3 Questions)
- Q1. What are your salary expectations?
- Q2. What is your family background?
- Q3. Share details of your previous job.
Interview Preparation Tips
I applied via Campus Placement and was interviewed in Jun 2021. There were 5 interview rounds.
Interview Questionnaire
6 Questions
- Q1. Chemical Engineers are generally placed in Water, Environment, Chemical or Power discussion.
- Q2. What is distillation
- Ans.
Distillation is a process of separating components of a mixture based on their boiling points.
It involves heating the mixture to vaporize the more volatile component
The vapor is then condensed and collected as a separate liquid
Commonly used in the production of alcoholic beverages, fuels, and chemicals
- Q3. Application of distillation
- Ans.
Distillation is a process used to separate components of a mixture based on their boiling points.
Used in petroleum refining to separate crude oil into different fractions
Used in the production of alcoholic beverages to separate ethanol from water
Used in the chemical industry to purify solvents and separate different chemicals
Can be used in the purification of water
Can be used in the separation of air into its component
- Q4. Type of heat exchangers
- Ans.
Heat exchangers are devices used to transfer heat between two or more fluids.
Shell and tube heat exchangers
Plate heat exchangers
Double pipe heat exchangers
Spiral heat exchangers
Air-cooled heat exchangers
- Q5. Bubble point vs dew point
- Ans.
Bubble point and dew point are two important concepts in thermodynamics used to describe the behavior of a mixture of liquids and gases.
Bubble point is the temperature at which a liquid mixture starts to boil and form bubbles of vapor.
Dew point is the temperature at which a vapor mixture starts to condense and form droplets of liquid.
Bubble point and dew point are related to each other through the vapor-liquid equilibr...
- Q6. Chemical vs Biological oxygen demand in Water chemistry
- Ans.
Chemical and Biological Oxygen Demand are measures of water quality and indicate the amount of oxygen required to break down organic matter.
Chemical Oxygen Demand (COD) measures the amount of oxygen required to oxidize organic and inorganic matter in water.
Biological Oxygen Demand (BOD) measures the amount of oxygen required by microorganisms to break down organic matter in water.
COD is a faster test and measures both ...
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Jul 2021. There were 4 interview rounds.
Aptitude test on CS subjects like C programming, DBMS, CN, and OS.
There were 2 input-output based questions of easy to moderate level
Every candidate was given an individual topic and was asked to speak on it
(1 Question)
- Q1. Some typical HR questions
Interview Preparation Tips
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