Ecolab Senior Chemist Interview Questions and Answers

Q1. Concrete structure and water supply related
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Q1. What are your salary expectations?
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Q2. Share details of your previous job.
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Q3. Where do you see yourself in 5 years?
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Q1. Basics of Water Treatment
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Q2. Working Principle of DM Plant
Ans. 
DM Plant removes impurities like salts and minerals from water using ion exchange process.
• DM Plant stands for Demineralization Plant.

• It uses ion exchange process to remove impurities like salts and minerals from water.

• It consists of cation exchange resin and anion exchange resin columns.

• Cations and anions in water are exchanged with hydrogen and hydroxyl ions in the resins.

• The treated water is then passed through mixed...read more
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Detailed information about the previous company where i worked.Discussed with project manager regarding my roles and assignments i had taken on work location.Along with that we discussed about my academic projects and skills that i had mastered in my career

Interviewers gave me the task to elaborate the design of pollution control equipments and assessments

Q1. Tell me about yourself.
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Q2. Share details of your previous job.
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Q3. What are your salary expectations?
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Q1. Quality site inspection
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Q2. Materials Testing & Third party Inspection
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Q1. Write unit testing for adding two nimbers
Ans. 
Unit testing for adding two numbers
• Create a test case with two numbers and expected sum

• Call the function that adds two numbers

• Assert that the result matches the expected sum
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Q1. Explain challenge you faced in your last project
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Q1. Salary expectations
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