Atotech Production Specialist Interview Questions and Answers for Experienced

Q1. Unit operation and Unit Processes?
Ans. 
Unit operations involve physical changes in the material, while unit processes involve chemical changes.
• Unit operations involve physical processes like mixing, crushing, distillation, filtration, etc.

• Unit processes involve chemical reactions like oxidation, reduction, hydrolysis, etc.

• Unit operations are usually used in the initial stages of production, while unit processes are used in the later stages.

• Unit operations f...read more
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Q2. Types of Reactors?
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Types of reactors include batch reactors, continuous stirred-tank reactors, plug flow reactors, and fluidized bed reactors.
• Batch reactors: Used for small-scale production and testing.

• Continuous stirred-tank reactors: Ideal for continuous production with uniform mixing.

• Plug flow reactors: Allow for efficient heat transfer and minimal back-mixing.

• Fluidized bed reactors: Suitable for high-temperature reactions and catalys
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Q1. Types of Agitators?
Ans. 
Types of agitators include paddle agitators, anchor agitators, turbine agitators, and propeller agitators.
• Paddle agitators are used for low viscosity fluids and gentle mixing.

• Anchor agitators are used for viscous fluids and provide good radial mixing.

• Turbine agitators are used for high viscosity fluids and provide high shear mixing.

• Propeller agitators are used for low viscosity fluids and provide axial flow mixing.
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Q2. Gas Drying vs Steam drying?
Ans. 
Gas drying is used to remove moisture from gases, while steam drying is used to remove moisture from solids or liquids.
• Gas drying involves passing a gas stream through a desiccant material to remove moisture, commonly used in natural gas processing.

• Steam drying involves using steam to evaporate moisture from solids or liquids, commonly used in food processing or paper production.

• Gas drying is more suitable for removing...read more
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Q1. Heat exchangers and its types?
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Heat exchangers are devices used to transfer heat between two or more fluids at different temperatures.
• Types of heat exchangers include shell and tube, plate heat exchangers, and finned tube heat exchangers.

• Shell and tube heat exchangers consist of a shell with tubes running through it, allowing one fluid to flow through the tubes while another flows over the tubes.

• Plate heat exchangers use metal plates to transfer hea...read more
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Q1. Types of pump and the troubleshooting?
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Types of pumps include centrifugal, reciprocating, and rotary pumps. Troubleshooting involves checking for leaks, low flow rates, and abnormal noises.
• Centrifugal pumps use rotating impellers to create flow.

• Reciprocating pumps use a piston or diaphragm to create flow.

• Rotary pumps use rotating mechanisms to create flow.

• Troubleshooting involves checking for leaks in the pump system.

• Troubleshooting involves checking for lo...read more
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Discussion about your work responsibility.

HR team salary discussion

Q1. Health check up detail Salary offered
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Q1. Technical Questions like as CV mentioned topic releted questions and MSDS Solvent and Chemical , Instrument , PIT, LIT and Operating valves and Vaccum system Safety questions LEL , UEL range CV mentioned...read more
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Q1. Salery discussion
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Q1. What is Mass Transfers
Ans. 
Mass transfer is the movement of substances from one place to another.
• Mass transfer involves the movement of components in a system due to differences in concentration, pressure, or temperature.

• Examples include the diffusion of gases in air, the separation of components in distillation processes, and the absorption of gases in liquids.

• Mass transfer is important in various industries such as chemical engineering, food p
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Q2. What is Distillation.
Ans. 
Distillation is a process of separating components of a liquid mixture based on differences in boiling points.
• Distillation involves heating the liquid mixture to create vapor, then cooling the vapor to condense it back into liquid form.

• The components with lower boiling points will vaporize first and be collected, while the components with higher boiling points will remain in the liquid phase.

• Common examples of distilla...read more
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Q1. Plant overview and process of the plant
Ans. 
The plant is a manufacturing facility that produces products through a series of processes.
• The plant has multiple production lines that operate simultaneously

• Raw materials are received and stored in the warehouse before being processed

• The production process involves mixing, heating, cooling, and packaging

• Quality control checks are performed at various stages of the process

• Finished products are stored in the finished go
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Q2. Safety questions and safety equipments
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Q1. What are your salary expectations?
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Q2. What are your sallary expected
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