Privi Speciality Chemicals Graduate Trainee Interview Questions and Answers

Domain based questions and basic aptitude question

Q1. About distillation column, basic questions ,cooling tower concept.
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Q2. Difference between CSTR and PFR, Pumps ,Heat Exchanger.
Ans. 
CSTR and PFR are types of reactors, pumps are used to move fluids, heat exchangers transfer heat between fluids.
• CSTR (Continuous Stirred Tank Reactor) has a constant volume and operates under steady-state conditions.

• PFR (Plug Flow Reactor) has a varying volume and operates under unsteady-state conditions.

• Pumps are mechanical devices used to move fluids from one place to another, like centrifugal pumps or positive displ...read more
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Q3. What is cracking
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Cracking is a process in which complex hydrocarbon molecules are broken down into simpler molecules.
• Cracking is a refining process used to convert large hydrocarbon molecules into smaller, more valuable ones.

• It is done by breaking the carbon-carbon bonds in the molecules.

• Examples include catalytic cracking and steam cracking.
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Q4. What is Reforming
Ans. 
Reforming is a process used in the petroleum industry to convert low-octane naphtha into high-octane gasoline.
• Reforming involves rearranging the molecular structure of hydrocarbons to increase their octane rating.

• It is typically done using a catalyst at high temperatures and pressures.

• The process can also produce hydrogen gas as a byproduct.

• Reforming is an important step in the production of gasoline and other fuels in...read more
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Q5. What is range and approach of cooling tower
Ans. 
The range of a cooling tower refers to the maximum distance at which it can effectively cool air, while the approach is the temperature difference between the cooled water and the entering air.
• Range of a cooling tower is typically around 5-20 degrees Fahrenheit

• Approach of a cooling tower is usually around 8-15 degrees Fahrenheit

• The range and approach of a cooling tower can vary based on factors such as design, size, an
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Basic aptitude questions, prepare it from India bix, more than enough for apti.

Q1. Basic metallurgy questions
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Q2. Basic extractive Metallurgy questions related to process
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Q3. Basic deformation mechanisms questions & physical metallurgy
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Q4. Why do you want to join core company
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Q5. Where do you see your self in 5 years
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Q1. Introduce yourself and Also tell about your Family background
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Q2. What are your hobbies you pursue apart from academics
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Q3. Tell me something about your Internship experience and what all have you learnt there
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1. Quantitative aptitude
2. Verbal and Reasoning Test

Q1. Tell me about yourself and Family background
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Q2. Tell me what all have you learnt in academics which help you in internship
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Q3. Tell me about yourself start from your graduation and also about your family
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Q4. What do you understand from the word Work life balance?
Ans. 
Work life balance refers to maintaining a healthy equilibrium between one's professional responsibilities and personal life.
• Work life balance involves prioritizing tasks and setting boundaries between work and personal life.

• It is important to manage time effectively to avoid burnout and maintain overall well-being.

• Examples of achieving work life balance include setting specific work hours, taking regular breaks, and en...read more
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Q5. Tell me about your experience in internship?
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1st aptitude followed by psychometric test .

Q1. 1. How you will select a heat exchanger for different type of fluids.
Ans. 
The selection of a heat exchanger for different fluids depends on factors such as fluid properties, flow rates, and heat transfer requirements.
• Identify the properties of the fluids such as viscosity, density, and thermal conductivity.

• Determine the flow rates and pressure drops of the fluids.

• Select the appropriate type of heat exchanger such as shell and tube, plate and frame, or spiral.

• Consider the heat transfer requir...read more
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Q2. What Is reflux ratio.
Ans. 
Reflux ratio is the ratio of the amount of liquid refluxed to the amount of liquid that is being distilled.
• It is an important parameter in distillation processes.

• It helps in determining the efficiency of the distillation column.

• A high reflux ratio results in a higher purity of the distillate.

• Reflux ratio can be adjusted to optimize the distillation process.

• It is calculated as the ratio of the reflux flow rate to the di
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