Unichem Laboratories
10+ Shalgar Sales Agency Interview Questions and Answers
Q1. What should you do if in process batch having emulsion during separate
Stop the process immediately and investigate the cause of emulsion formation.
Stop the agitation and allow the emulsion to settle.
Analyze the composition of the batch to identify the cause of emulsion formation.
Adjust the process parameters such as temperature, pH, or mixing speed to prevent emulsion formation in future batches.
Consider using additives or surfactants to stabilize the emulsion.
Consult with experts or colleagues for advice on how to prevent emulsion formation.
Q2. What is difference between crystallization and precipitation
Crystallization is the formation of crystals from a solution, while precipitation is the formation of solid particles from a solution.
Crystallization involves the formation of a crystal lattice structure, while precipitation does not.
Crystallization is a more controlled process, while precipitation can be more random.
Crystallization is often used in the production of pharmaceuticals, while precipitation is used in wastewater treatment.
Crystallization can be induced by cooling...read more
Q3. What is difference between micronization and multimill
Micronization is the process of reducing particle size to micrometer range, while multimill is a type of milling equipment used for size reduction.
Micronization is used to improve solubility, bioavailability, and stability of drugs.
Multimill is commonly used in the pharmaceutical industry for granulation and size reduction of materials.
Micronization can be achieved through various methods such as jet milling, ball milling, and spray drying.
Multimill operates on the principle ...read more
Q4. What is bound moisture?
Bound moisture refers to water molecules that are chemically attached to a substance.
Bound moisture cannot be removed by simple drying methods.
It is often found in pharmaceuticals, food products, and other materials.
Bound moisture can affect the stability and shelf life of a product.
It is important to measure and control bound moisture levels in manufacturing processes.
Q5. How many plates in sparkler filter
The number of plates in a sparkler filter varies depending on the size and capacity of the filter.
The number of plates can range from a few to several hundred.
The size and capacity of the filter determine the number of plates needed.
The plates are typically made of stainless steel or other durable materials.
The plates are arranged in a stack and held together by a central rod.
The filter is used to remove impurities from liquids in various industries such as pharmaceuticals, f...read more
Q6. What is retrospective validation
Retrospective validation is the process of validating a system or process after it has been in use.
It involves analyzing historical data to ensure that the system or process has been consistently meeting its intended requirements and specifications.
It is often used when a system or process was not validated before it was put into use.
Retrospective validation can also be used to identify areas for improvement and to update validation protocols.
Examples include validating a man...read more
Q7. How many classes of solvent
There are several classes of solvents, including polar, nonpolar, protic, aprotic, and supercritical fluids.
Polar solvents dissolve polar compounds and have a dipole moment, such as water and ethanol.
Nonpolar solvents dissolve nonpolar compounds and lack a dipole moment, such as hexane and benzene.
Protic solvents have a hydrogen atom attached to an electronegative atom and can donate hydrogen bonds, such as methanol and acetic acid.
Aprotic solvents lack a hydrogen atom attach...read more
Q8. What is Reynolds number
Reynolds number is a dimensionless quantity used to predict fluid flow patterns and turbulence.
It is used to determine whether a fluid flow is laminar or turbulent
It is calculated using the fluid velocity, density, viscosity, and characteristic length
Higher Reynolds number indicates turbulent flow while lower indicates laminar flow
It is named after Osborne Reynolds, a British physicist and engineer
Q9. What is process validation
Process validation is the documented evidence that a process is consistently producing a product that meets predetermined specifications and quality attributes.
Process validation is a critical step in ensuring product quality and safety.
It involves establishing documented evidence that a process is capable of consistently producing a product that meets predetermined specifications and quality attributes.
Process validation typically involves three stages: process design, proce...read more
Q10. What is fire extinguisher
A device used to extinguish small fires by releasing chemicals or water.
Fire extinguishers come in different types, such as water, foam, powder, and CO2.
They are typically found in public buildings, homes, and vehicles.
Fire extinguishers should be inspected and maintained regularly to ensure they are in working condition.
They are designed to be used on small fires and should not be used on large or spreading fires.
The acronym PASS (Pull, Aim, Squeeze, Sweep) is commonly used ...read more
Q11. How to measure mesh
Mesh can be measured by counting the number of openings per inch or centimeter.
Count the number of openings in a linear inch or centimeter
Use a mesh gauge to measure the size of the openings
Measure the thickness of the wire used to make the mesh
Calculate the open area of the mesh
Compare the mesh to a standard reference chart
Q12. How many permits
I'm sorry, I need more context. Permits for what?
Please provide more information about the context of the permits.
Are you referring to permits for a specific industry or activity?
Without additional information, I cannot provide an accurate answer.
Q13. Principal of micronization
Micronization is the process of reducing particle size to improve solubility, bioavailability, and stability of drugs.
Micronization is commonly used in the pharmaceutical industry to improve drug performance.
It involves reducing the particle size of a drug to less than 10 microns.
This process can improve the solubility, bioavailability, and stability of drugs.
Examples of drugs that have been micronized include ibuprofen, naproxen, and danazol.
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