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I applied via Referral and was interviewed in May 2023. There were 3 interview rounds.
A centrifuge is a machine that uses centrifugal force to separate substances of different densities or to remove moisture.
Centrifuges are commonly used in laboratories to separate components of blood or other fluids.
They work by spinning samples at high speeds, causing heavier particles to move towards the bottom of the tube.
Centrifuges can also be used in industrial processes, such as separating oil from water in the
Crystallization is the process of formation of solid crystals from a homogeneous solution.
Crystals are formed when atoms or molecules arrange themselves in a repeating pattern.
It involves the separation of solute particles from a solution to form a solid crystal.
Crystallization is used in various industries such as pharmaceuticals, food processing, and chemical manufacturing.
Examples include the formation of sugar crys...
Crystal formation is more at the point of supersaturation, where the solution contains more solute than it can normally hold.
Crystal formation is more likely when the solution is cooled slowly, allowing time for the molecules to arrange themselves into a crystal lattice.
Higher concentrations of solute in the solution increase the chances of crystal formation.
Impurities in the solution can act as nucleation sites, promo...
Distillation is a process of separating components of a liquid mixture based on differences in boiling points.
Distillation involves heating the liquid mixture to create vapor, then cooling the vapor to condense it back into liquid form.
The components with lower boiling points will vaporize first and be collected, leaving behind components with higher boiling points.
Common examples of distillation include the production...
Boiling point is the temperature at which a liquid turns into vapor, fire point is the temperature at which a substance can ignite and sustain combustion, and flash point is the temperature at which a substance gives off enough vapor to ignite momentarily.
Boiling point is the temperature at which a liquid changes into vapor by overcoming atmospheric pressure.
Fire point is the temperature at which a substance can ignite...
The required oxygen percentage in a confined space is typically between 19.5% and 23.5%.
Oxygen percentage in a confined space should be maintained between 19.5% and 23.5% for safe working conditions.
Levels below 19.5% can lead to hypoxia (oxygen deficiency) and levels above 23.5% can increase the risk of fire.
It is important to regularly monitor and test the oxygen levels in confined spaces to ensure safety.
Proper vent...
Centrifugal force is the outward force experienced by an object moving in a circular path.
Centrifugal force is not a real force, but rather a perceived force due to inertia.
It is the opposite of centripetal force, which is the inward force keeping an object in circular motion.
Examples include the feeling of being pushed to the side in a car when it takes a sharp turn, or water being pushed outwards in a spinning bucket
A permit system is a formal process used to control and manage work activities in hazardous environments.
Permit systems ensure that proper precautions are taken before work begins
They typically involve obtaining written authorization to perform work
Common types of permits include hot work permits, confined space permits, and electrical work permits
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I applied via Naukri.com and was interviewed before Feb 2021. There were 2 interview rounds.
I applied via Naukri.com and was interviewed before Sep 2021. There was 1 interview round.
posted on 3 Jun 2021
I applied via Campus Placement and was interviewed before Oct 2021. There were 2 interview rounds.
A distillation column is a vertical vessel used for separating a mixture of liquids into its individual components based on their boiling points.
Distillation columns are commonly used in the chemical and petroleum industries.
They work by heating the mixture to vaporize the components with lower boiling points, which rise up the column and condense at different heights based on their boiling points.
The separated compone...
I appeared for an interview before Mar 2024, where I was asked the following questions.
posted on 11 Feb 2025
ETP stands for Effluent Treatment Plant, which is used to treat industrial wastewater before it is released into the environment.
ETP is used to remove contaminants and pollutants from industrial wastewater.
It typically involves physical, chemical, and biological processes to treat the water.
Examples of ETP include activated sludge process, membrane bioreactor, and chemical precipitation.
The treated water can then be sa...
The number of bacteria active in bioreactors can vary depending on the specific bioreactor and its purpose.
The number of bacteria in bioreactors can range from millions to billions, depending on the size and type of bioreactor.
The specific type of bacteria present in bioreactors can also vary, depending on the desired outcome of the bioreactor process.
Monitoring the activity of bacteria in bioreactors is crucial for en...
Foods that are dead or cooked to a high temperature are safe from bacteria.
Cooked meats like chicken, beef, and pork
Boiled vegetables like potatoes and carrots
Canned foods like beans and soups
posted on 24 Aug 2023
I applied via Company Website and was interviewed in Jul 2023. There were 2 interview rounds.
PASAV stands for Pressure Actuated Safety and Automatic Valve. It is used to control the flow of fluids in a system based on pressure levels.
PASAV is a type of valve used in mechanical systems.
It automatically opens or closes based on the pressure levels in the system.
PASAV helps in maintaining safe pressure levels in the system to prevent damage or accidents.
Example: PASAVs are commonly used in hydraulic systems to re
To work in open spanner, place the spanner on the nut or bolt and turn it in the desired direction.
Select the correct size of open spanner for the nut or bolt
Place the open end of the spanner on the nut or bolt
Turn the spanner in the desired direction to loosen or tighten the nut or bolt
Ensure the spanner is securely placed on the nut or bolt to avoid slipping
Types of welding include MIG, TIG, stick, and flux-cored welding.
MIG welding uses a wire electrode and shielding gas to create a strong bond.
TIG welding uses a tungsten electrode and inert gas for precise and clean welds.
Stick welding uses a consumable electrode coated in flux to create a strong bond.
Flux-cored welding uses a tubular wire filled with flux for outdoor and windy conditions.
I applied via Walk-in and was interviewed before Jun 2021. There were 2 interview rounds.
Drying is the process of removing moisture from a substance. Types of valves include gate, globe, ball, and butterfly valves. Types of reactors include batch, continuous stirred tank, and plug flow reactors.
Drying is important in industries such as food, pharmaceuticals, and chemicals
Valves are used to control the flow of fluids in a system
Gate valves are used for on/off control, globe valves for regulating flow, ball ...
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Plant Operator
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| ₹2.2 L/yr - ₹4 L/yr |
Shift Incharge
29
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| ₹2.8 L/yr - ₹6.5 L/yr |
Assistant Manager
18
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| ₹6.2 L/yr - ₹9.5 L/yr |
Shift Engineer
18
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| ₹3 L/yr - ₹4 L/yr |
ETP Operator
15
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| ₹2 L/yr - ₹3.3 L/yr |
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