Walter Bushnell Research Associate Interview Questions and Answers

Q1. What is Chromatography?
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Q2. Types of filtration.
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Filtration is a process to separate solids from liquids or gases using a filter medium.
• Mechanical Filtration: Uses physical barriers (e.g., sand filters).

• Chemical Filtration: Involves chemical reactions (e.g., activated carbon filters).

• Biological Filtration: Utilizes microorganisms (e.g., biofilters in aquariums).

• Membrane Filtration: Employs semi-permeable membranes (e.g., reverse osmosis).

• Air Filtration: Removes parti
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Q3. What is crystallization?
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Crystallization is the process of forming solid crystals from a homogeneous solution or melt.
• Occurs when a solute concentration exceeds its solubility limit.

• Can be induced by cooling a solution or evaporating the solvent.

• Examples include sugar crystallizing from syrup and salt from seawater.

• Used in purifying substances, such as in the production of pharmaceuticals.
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Q4. Types of Extraction techniques.
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Extraction techniques are methods used to isolate specific compounds from mixtures in various fields, including chemistry and biology.
• Solvent Extraction: Uses a solvent to dissolve and separate compounds (e.g., extracting caffeine from coffee).

• Distillation: Separates components based on boiling points (e.g., purifying ethanol).

• Filtration: Uses a barrier to separate solids from liquids (e.g., filtering sand from water).

• ...read more
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Q5. Types of purification techniques.
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Purification techniques separate desired substances from impurities, enhancing quality and usability in various fields.
• Filtration: Uses a barrier to separate solids from liquids (e.g., coffee filter).

• Distillation: Separates components based on boiling points (e.g., alcohol distillation).

• Chromatography: Separates mixtures based on differential affinities (e.g., paper chromatography).

• Centrifugation: Uses centrifugal forc...read more
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Q1. Background information Technical knowledge on instruments and process Information on current trends in industry
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Q2. Current trends in industry
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Industry trends include automation, AI, sustainability, and remote work.
• Automation is becoming increasingly prevalent in manufacturing and other industries.

• Artificial intelligence is being used for data analysis and decision-making.

• Sustainability is a growing concern, with companies focusing on reducing waste and carbon emissions.

• Remote work is becoming more common, with many companies adopting flexible work arrangemen
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Nice aptitude questions of logical reasons and data interpretation

Q1. Personal and professional life experiences
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Q1. Job profile and working experience
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Q1. Reason for joining, Personal information
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Q1. Safety system, HAZOP, case study
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Q1. Masters Lims topics, QMS, chromatography techniques
Ans. Sample manager, resource manager, plant lims, incidents, change control, chromtographic techniques etc...
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Q1. Y u choose this organization nd biopharma. Experience, stability
Ans. 
I chose this organization and biopharma due to their strong experience, stability, and alignment with my career goals.
• I chose this organization because of their extensive experience in the biopharma industry.

• The organization has a proven track record of stability and success.

• I believe that working in the biopharma field will allow me to make a meaningful impact on patients' lives.

• The organization's mission and values a...read more
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Q2. Y u choose this organization nd biopharma. experience, stability,
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Q1. How much ur expecting
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Q2. Y u would like to transfer
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