Sudarshan Chemical Industries Graduate Engineer Trainee (Get) 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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Q1. Being a mechanical Engineer you should aware about the basic of fluid mechanics Heat transfer and little bit strength of materials subjects was more weightage in the technical interview.
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Q2. How to design equipment?
Ans. 
Equipment design involves identifying user needs, creating prototypes, testing, and refining the design.
• Identify user needs and requirements

• Create prototypes and test them thoroughly

• Refine the design based on feedback and testing

• Consider safety, ergonomics, and usability

• Use appropriate materials and manufacturing processes

• Ensure compliance with relevant regulations and standards
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Q3. What was centrifugal pump and difference between pump and compressor?
Ans. 
A centrifugal pump is a mechanical device used to transport fluids by converting rotational kinetic energy to hydrodynamic energy.
• Centrifugal pumps are commonly used in industries such as oil and gas, chemical, and water treatment.

• They work by using an impeller to create a low-pressure area at the center of the pump, which draws in fluid and then expels it at high pressure through the outlet.

• Pumps are used to transport...read more
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Q4. What was NPSH? Types of pumps..
Ans. 
NPSH stands for Net Positive Suction Head. It is a measure of the pressure available at the suction side of a pump to prevent cavitation.
• NPSH is important in pump selection and operation.

• It is the difference between the total suction head and the vapor pressure of the pumped fluid.

• Insufficient NPSH can lead to cavitation, which can damage the pump and reduce its efficiency.

• Different types of pumps have different NPSH r...read more
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Q1. 1) introduce yourself 2)tell us more about your hobbies? 3) explain about your internship? 4) what was your final year project? 5)what is your favorite subject? 6) Tell us something about transformer prote...read more
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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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10 people in one group, topic drone technology

Q1. Modes of Heat transfer
Ans. 
Modes of heat transfer include conduction, convection, and radiation.
• Conduction is the transfer of heat through a material without any movement of the material itself.

• Convection is the transfer of heat through the movement of fluids, such as air or water.

• Radiation is the transfer of heat through electromagnetic waves, such as the heat from the sun.

• Examples of conduction include touching a hot stove or holding a cold dr...read more
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Q2. Design of distillation coloumn
Ans. 
Design of distillation column involves determining the number of trays, column diameter, and feed location.
• The number of trays is determined by the separation required and the reflux ratio.

• Column diameter is determined by the vapor and liquid flow rates.

• Feed location is determined by the composition of the feed and the desired product purity.

• Other factors to consider include pressure drop, heat transfer, and material s...read more
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Q1. If we send you to Jammu will you work
Ans. 
Yes, I am willing to work in Jammu.
• I am open to working in any location assigned to me

• I am adaptable and can adjust to new environments

• I am excited to explore new places and cultures

• I have worked in different cities before and have had positive experiences
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Q2. Tell us more about yourself
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Good performance & technical answer

Q1. What is Pump Whay required pump
Ans. 
Pump Whay is a required pump for a specific application.
• Pump Whay is likely a typo and should be corrected to 'Pump What'.

• The required pump depends on the specific application and its requirements.

• Examples of pump types include centrifugal pumps, diaphragm pumps, and gear pumps.
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Q2. What is sop & standard ruals
Ans. 
SOP stands for Standard Operating Procedure, which are established procedures to ensure consistency and quality in operations. Standard rules are guidelines that must be followed.
• SOPs are detailed step-by-step instructions on how to perform a specific task or operation.

• Standard rules are general guidelines or regulations that must be followed in a particular setting.

• SOPs help in maintaining consistency, quality, and ef...read more
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