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I applied via Referral and was interviewed before May 2022. There was 1 interview round.
Chromatography is a technique used to separate and analyze mixtures. pH is a measure of acidity or basicity. Titration is a method to determine the concentration of a substance in a solution.
Chromatography involves passing a mixture through a stationary phase and a mobile phase to separate its components. Examples include gas chromatography and liquid chromatography.
pH is measured on a scale of 0-14, with 7 being neutr...
Our company offers a range of products that cater to various needs and industries.
Our products are designed to be user-friendly and efficient.
We offer products for industries such as healthcare, finance, and retail.
Our products are constantly updated to meet the changing needs of our customers.
We also offer customization options for our products to meet specific customer requirements.
Column selection for buffers depends on pH, ionic strength, and buffer capacity.
Consider the pH range of the buffer
Choose a buffer with appropriate pKa value
Consider the ionic strength of the buffer solution
Choose a buffer with high buffer capacity
Use online buffer selection tools for guidance
Kimia Biosciences interview questions for popular designations
posted on 31 Dec 2020
I applied via Referral and was interviewed before Dec 2019. There was 1 interview round.
Lambert Beer Law states that the absorbance of a solution is directly proportional to the concentration of the absorbing species.
The law is used to determine the concentration of a substance in a solution by measuring its absorbance.
It assumes that the absorbing species is uniformly distributed throughout the solution.
The law is expressed as A = εcl, where A is the absorbance, ε is the molar absorptivity, c is the conc...
Retardation factor is the ratio of the distance traveled by a solute to the distance traveled by the solvent in a chromatography experiment.
Retardation factor is a dimensionless quantity.
It is used to identify and separate different components of a mixture in chromatography.
It is calculated by dividing the distance traveled by the solute by the distance traveled by the solvent.
Retardation factor values range from 0 to ...
To increase intensity in TLC plate, use a more concentrated sample or increase the amount of sample spotted.
Use a more concentrated sample
Increase the amount of sample spotted
Use a more sensitive detection method
Increase the development time
Use a different solvent system
C8 and C18 columns differ in their hydrophobicity and selectivity.
C8 columns have shorter carbon chains than C18 columns.
C8 columns are less hydrophobic than C18 columns.
C8 columns are more selective for less hydrophobic compounds.
C18 columns are more selective for more hydrophobic compounds.
C8 columns are often used for separating polar and nonpolar compounds.
C18 columns are often used for separating nonpolar compound...
ODS and BDS columns are both used in chromatography but differ in their stationary phase.
ODS (Octadecylsilane) columns have a hydrophobic stationary phase and are used for non-polar compounds.
BDS (Butylsilane) columns have a more polar stationary phase and are used for polar compounds.
ODS columns are more commonly used than BDS columns.
Both columns have different selectivity and retention characteristics.
Bunsen reaction involves the reaction of a metal with a non-metal to form an ionic compound.
The reaction is named after Robert Bunsen, a German chemist.
It is a type of redox reaction.
The reaction formula is: Metal + Non-metal → Ionic Compound
For example, the reaction between sodium and chlorine to form sodium chloride (Na + Cl2 → 2NaCl).
I applied via Referral and was interviewed in Oct 2019. There were 4 interview rounds.
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I applied via Approached by Company and was interviewed in Nov 2024. There was 1 interview round.
Examine dimensions, materials, fittings, supports, and routing in isometric drawings.
Check dimensions to ensure proper fit and clearance
Verify materials specified for construction
Review fittings for correct type and size
Confirm supports are in place for proper installation
Analyze routing to ensure efficient flow and accessibility
Example: Checking pipe diameter for compatibility with system requirements
Documents required for piping modeling include P&IDs, equipment datasheets, piping specifications, and 3D model standards.
Piping and Instrumentation Diagrams (P&IDs) provide the overall layout and design of the piping system.
Equipment datasheets contain information about the equipment to be connected to the piping system.
Piping specifications outline the materials, sizes, and standards to be used for the piping...
P&ID shows detailed piping and instrumentation information, while PFD shows overall process flow.
P&ID includes detailed information on piping, valves, instruments, equipment, and control systems.
PFD provides an overview of the entire process flow, showing major equipment and key control loops.
P&ID is used for detailed engineering design and implementation, while PFD is used for process understanding and ana...
Key deliverables expected from a piping engineer include design, analysis, documentation, and project coordination.
Designing piping systems based on project requirements and specifications
Performing stress analysis to ensure structural integrity
Creating detailed drawings and documentation for construction
Coordinating with other engineering disciplines and stakeholders
Ensuring compliance with industry standards and regu
I would approach creating a pump piping layout by considering factors like pump type, flow rate, pressure requirements, and space constraints.
Identify the type of pump being used (centrifugal, reciprocating, etc.)
Determine the required flow rate and pressure for the system
Consider the layout of existing piping and equipment to optimize space utilization
Ensure proper support and anchoring of the piping to prevent vibrat...
The north sign in isometric drawings is important for orientation and ensuring consistency in the drawing.
The north sign helps in determining the direction of the drawing, ensuring that it is correctly oriented.
It helps in maintaining consistency in the drawing, especially when multiple sheets are involved.
It assists in understanding the spatial relationship between different components in the drawing.
Without the north...
posted on 24 Dec 2024
I applied via Referral and was interviewed in Nov 2024. There was 1 interview round.
Seeking new challenges and growth opportunities.
Desire for career advancement
Opportunity to learn new skills and techniques
Seeking a more dynamic and innovative work environment
No, we prioritize timely refunds to ensure customer satisfaction and maintain trust.
We prioritize timely refunds to maintain customer satisfaction and trust.
Delays in refunds can lead to negative customer experiences and impact brand reputation.
Efficient refund processes are essential for customer retention and loyalty.
Examples: Amazon processes refunds quickly to ensure customer satisfaction.
Examples: Airlines provide...
posted on 24 Jul 2024
I applied via Recruitment Consulltant and was interviewed in Jun 2024. There were 3 interview rounds.
Humidity is required to maintain a comfortable and healthy environment, prevent static electricity, preserve certain materials, and support plant growth.
Maintains a comfortable environment by preventing dryness in the air
Helps prevent static electricity buildup, which can damage electronics
Preserves certain materials like wood, leather, and musical instruments
Supports plant growth by providing necessary moisture for ph
Humidity typically increases during the night and early morning hours due to cooler temperatures and higher relative humidity.
Humidity tends to increase during the night when temperatures drop and air can hold less moisture.
Early morning hours also see an increase in humidity as temperatures start to rise and dew forms.
Factors such as proximity to bodies of water, vegetation, and weather patterns can also influence hum...
HEPA filters are designed to capture particles as small as 0.3 microns due to their ability to efficiently trap particles of that size.
HEPA filters are designed to capture particles of various sizes, including very small particles like viruses and bacteria.
0.3 microns is considered the most penetrating particle size, meaning particles of this size are the most difficult to capture.
HEPA filters are able to efficiently t...
Blower CFM can be calculated by multiplying the air velocity by the cross-sectional area of the duct.
Calculate the cross-sectional area of the duct (in square feet or square meters)
Measure the air velocity (in feet per minute or meters per second)
Multiply the air velocity by the cross-sectional area to get the CFM
Example: Cross-sectional area = 5 sq ft, Air velocity = 100 ft/min, CFM = 5 sq ft * 100 ft/min = 500 CFM
AHU data sheet contains information about air handling unit specifications, dimensions, performance, and components.
Specifications of the air handling unit (AHU)
Dimensions and weight of the AHU
Performance data including airflow rates, static pressure, and efficiency
Details of components such as fans, coils, filters, and dampers
Electrical requirements and power consumption
Control options and features
Maintenance requirem
I would take measurements such as airflow rate, pressure, power consumption, and noise level to determine the appropriate blower for ordering.
Airflow rate: measure the volume of air moved per unit of time
Pressure: measure the force exerted by the blower to push air
Power consumption: measure the amount of electrical power needed to operate the blower
Noise level: measure the sound produced by the blower during operation
Friction loss can be calculated using the Darcy-Weisbach equation, which takes into account the pipe material, diameter, length, flow rate, and roughness factor.
Use the Darcy-Weisbach equation: f = (4 * f * L * V^2) / (2 * g * D)
Where f is the friction factor, L is the length of the pipe, V is the flow velocity, g is the acceleration due to gravity, and D is the diameter of the pipe.
Friction factor can be determined ba...
Maintaining water velocity of RO water is crucial for efficient filtration and production of high-quality water.
Maintaining water velocity ensures proper pressure and flow rate for effective filtration process
Optimal water velocity prevents fouling and scaling of RO membranes
Recommended water velocity for RO systems is typically between 0.5 to 2 meters per second
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