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There are two main types of vacuum pumps: gas transfer pumps and entrapment pumps.
Gas transfer pumps: move gas molecules through the pump using positive displacement or momentum transfer (e.g. rotary vane pump, diaphragm pump)
Entrapment pumps: capture gas molecules by adsorption or condensation on a solid surface (e.g. cryopump, ion pump)
Centrifuge pumps work by using centrifugal force to move fluids through the pump.
Centrifuge pumps use a rotating impeller to create centrifugal force, which pushes the fluid towards the outlet.
The fluid enters the pump through the suction port and is accelerated by the impeller.
As the fluid moves through the pump, the centrifugal force increases its velocity and pressure, allowing it to be discharged through the outlet...
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I applied via Walk-in and was interviewed in Nov 2024. There was 1 interview round.
I appeared for an interview before May 2024, where I was asked the following questions.
Ensuring safety during batch charging involves proper procedures, equipment checks, and personal protective measures.
Always wear appropriate personal protective equipment (PPE) such as gloves, goggles, and lab coats.
Ensure that all equipment is properly calibrated and functioning before charging the batch.
Conduct a risk assessment to identify potential hazards associated with the materials being used.
Use proper ventila...
Vacuum pumps create low-pressure environments for various applications, including industrial and laboratory settings.
Positive Displacement Pumps: These pumps trap a volume of gas and then expel it, e.g., rotary vane pumps.
Momentum Transfer Pumps: These use high-speed blades to impart momentum to gas molecules, e.g., turbomolecular pumps.
Entrapment Pumps: These capture gas molecules on a solid surface, e.g., cryopumps.
D...
I applied via Walk-in and was interviewed before Nov 2023. There were 3 interview rounds.
To open a vacuum tray dryer, follow these steps carefully.
Ensure the vacuum tray dryer is turned off and disconnected from power source.
Release any pressure inside the dryer by slowly opening the vent valve.
Unlock and open the door of the vacuum tray dryer.
Carefully remove the trays one by one, starting from the top.
Inspect the trays for any residue or product buildup and clean if necessary.
Close the door securely afte...
The vacuum build in Hyderabad varies depending on the location and time of measurement.
Vacuum levels in Hyderabad can range from 700 to 760 mmHg
Factors such as altitude, weather conditions, and equipment used can affect vacuum levels
For example, in a laboratory setting, a vacuum pump may be used to create a vacuum for experiments
A clean room is a controlled environment with low levels of pollutants such as dust, airborne microbes, aerosol particles, and chemical vapors.
Clean rooms are typically used in industries such as pharmaceuticals, biotechnology, electronics, and aerospace.
They are designed to maintain a specific level of cleanliness to ensure the quality of products being manufactured.
Clean rooms have strict protocols for entry, includi...
Reactors are operated by following standard operating procedures, monitoring key parameters, adjusting conditions as needed, and ensuring safety protocols are followed.
Follow standard operating procedures provided by the manufacturer or company
Monitor key parameters such as temperature, pressure, flow rate, and pH regularly
Adjust conditions as needed to maintain desired reaction conditions
Ensure safety protocols are fo...
An exothermic reaction is a chemical reaction that releases energy in the form of heat.
Exothermic reactions release heat to the surroundings
They have a negative change in enthalpy (ΔH)
Examples include combustion reactions, neutralization reactions, and some oxidation reactions
I applied via Referral and was interviewed before Apr 2021. There was 1 interview round.
I applied via Walk-in and was interviewed before Feb 2020. There were 4 interview rounds.
HPLC & GC are analytical techniques used for separation, identification, and quantification of chemical compounds.
HPLC stands for High Performance Liquid Chromatography and GC stands for Gas Chromatography.
Both techniques involve the separation of a mixture of compounds based on their physical and chemical properties.
HPLC uses a liquid mobile phase and a solid stationary phase, while GC uses a gas mobile phase and a li...
I applied via Referral and was interviewed before Oct 2021. There were 4 interview rounds.
I applied via Recruitment Consulltant and was interviewed before Oct 2021. There were 3 interview rounds.
Leadership and decision making skills.
Technical knowledge based on job profile.
I applied via Company Website and was interviewed in Jun 2020. There were 3 interview rounds.
Qualification process for AHU system involves handling of equipment to ensure compliance with standards.
Qualification process involves testing and verifying the performance of AHU system.
Equipment handling should follow standard operating procedures to prevent contamination.
Documentation of the qualification process and equipment handling is necessary for compliance.
Examples of equipment handling include cleaning, cali...
I applied via Recruitment Consulltant
based on 1 interview experience
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