Parexel International Executive Interview Questions and Answers

Q1. What are different types of reactors
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Reactors are vessels used for chemical reactions. Different types include batch, continuous, stirred tank, and plug flow reactors.
• Batch reactors are used for small-scale production and testing.

• Continuous reactors are used for large-scale production and can operate continuously for long periods of time.

• Stirred tank reactors are used for mixing and heating/cooling of liquids.

• Plug flow reactors are used for reactions that...read more
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Q1. Tyapes of distillation
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Distillation is a process of separating components of a mixture based on their boiling points. There are several types of distillation.
• Simple distillation: used for separating components with large difference in boiling points

• Fractional distillation: used for separating components with closer boiling points

• Vacuum distillation: used for separating components with high boiling points

• Steam distillation: used for separatin...read more
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Q2. Which types of cleaning in pharma industries
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About your company and warking culture

Q1. Salary discussion
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Q1. Personal information Previous company job description What is GMP, deviation,CAPA, Change Control, Which type equipment handling, technical questions
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Q1. Family Background Total experience Current CTC expected CTC
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Q1. Some questions related to technical
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Q1. Discussion regarding salary package
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Q1. Regarding previous experience 1. Scale up & Scale down 2. Crystallization 3. Heat load Calculations 4. Trouble shoot 5. During Critical Reaction what kind safety precautions will use (like NBL, Thyniol Cl,...read more
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