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Cohizon Life Sciences Limited

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10+ Cohizon Life Sciences Limited Interview Questions and Answers

Updated 10 Aug 2024

Q1. MEE plant role in company

Ans.

The MEE plant plays a crucial role in the company by treating wastewater from various processes to meet environmental regulations.

  • The MEE plant is responsible for treating wastewater generated from different processes within the company.

  • It uses multiple stages of evaporation to concentrate the wastewater and remove impurities.

  • The treated water is then reused or discharged in compliance with environmental regulations.

  • The MEE plant helps the company reduce its environmental imp...read more

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Q2. Analysis of MLSS and MLVSS

Ans.

MLSS and MLVSS are key parameters used in wastewater treatment to measure the concentration of solids in the system.

  • MLSS stands for Mixed Liquor Suspended Solids and represents the total concentration of solids (organic and inorganic) in the wastewater treatment system.

  • MLVSS stands for Mixed Liquor Volatile Suspended Solids and represents the concentration of organic solids in the system.

  • MLVSS is a subset of MLSS and is used to calculate the volatile fraction of the solids pr...read more

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Q3. Chemical doseging in ntr

Ans.

Chemical dosing in water treatment is crucial for maintaining water quality and ensuring effective treatment processes.

  • Chemical dosing is the process of adding specific chemicals to water to achieve desired treatment outcomes.

  • The dosing rate and frequency depend on the water quality parameters and treatment objectives.

  • Examples of chemicals used for dosing in water treatment include chlorine for disinfection, coagulants for flocculation, and pH adjusters.

  • Proper calibration of ...read more

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Q4. Design of distillation column for binary mixtures

Ans.

Designing a distillation column for binary mixtures involves determining the number of trays, feed location, and reflux ratio.

  • Determine the boiling points of the components

  • Calculate the minimum reflux ratio

  • Choose the number of trays based on the desired separation

  • Determine the feed location based on the composition of the feed

  • Design the reboiler and condenser

  • Consider the pressure drop across the column

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Q5. Stream balance inside dist column

Ans.

Stream balance inside distillation column is crucial for efficient separation of components.

  • Stream balance refers to the equal distribution of feed and product streams across the column.

  • Imbalance can lead to poor separation efficiency, flooding, or tray damage.

  • Factors affecting stream balance include tray design, liquid and vapor flow rates, and column diameter.

  • Techniques such as tray hydraulics and computational fluid dynamics can be used to optimize stream balance.

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Q6. What interlock have you seen in operation

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Q7. Optimum diameter of pump

Ans.

The optimum diameter of a pump depends on various factors such as flow rate, head, viscosity, and efficiency.

  • The diameter should be selected based on the required flow rate and head of the system.

  • Higher viscosity fluids require larger diameter pumps to reduce frictional losses.

  • Efficiency of the pump increases with larger diameter impellers.

  • The diameter should also be selected based on the available space and cost constraints.

  • Consulting with pump manufacturers and engineers ca...read more

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Q8. What is refrigeration

Ans.

Refrigeration is the process of removing heat from a space, substance, or system to lower and/or maintain its temperature.

  • Refrigeration involves the use of refrigerants to absorb and remove heat from a space.

  • It is used in various applications such as air conditioning, food preservation, and industrial processes.

  • The basic principle of refrigeration is the transfer of heat from a low temperature area to a high temperature area.

  • Common refrigeration systems include vapor compress...read more

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Q9. What is Vaccum pump types and principal

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Q10. How many reactions to be handled

Ans.

The number of reactions to be handled will depend on the specific projects and workload of the team.

  • The number of reactions will vary based on the complexity and scale of the projects assigned.

  • It is important to prioritize and manage the reactions efficiently to meet project deadlines.

  • Regular communication with team members and supervisors can help in determining the workload and distribution of reactions.

  • Examples: Handling multiple reactions simultaneously for different proj...read more

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Q11. Which DCS have you operated

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Q12. Have you taken pneumatic test.

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Q13. Which Product to be developed

Ans.

The product to be developed should focus on improving the efficiency and scalability of flow chemistry and synthesis processes.

  • Develop a new catalyst for a specific reaction to increase yield and selectivity

  • Design a continuous flow system for a key step in a pharmaceutical synthesis

  • Create a software tool to optimize reaction conditions in flow chemistry

  • Explore new methods for in-line analysis and purification of reaction mixtures

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Interview Process at Cohizon Life Sciences Limited

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Interview experience
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