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I applied via Recruitment Consultant and was interviewed in Jan 2020. There were 3 interview rounds.
DCS stands for Distributed Control System. It is a computerized control system used to manage and automate industrial processes.
DCS is used in industries such as oil and gas, power generation, and chemical manufacturing.
It allows for centralized control of multiple processes and equipment.
DCS can monitor and control variables such as temperature, pressure, and flow rate.
It can also provide real-time data and analytics ...
Precautions and types of permits for confined space work
Conduct atmospheric testing before entering the confined space
Ensure proper ventilation and lighting
Use appropriate personal protective equipment
Have a rescue plan in place
Types of permits include entry permit, hot work permit, and excavation permit
I work at the XYZ plant.
I am currently working at the XYZ plant.
My current workplace is the XYZ plant.
I am employed at the XYZ plant.
I work at the XYZ plant located in ABC city.
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NPSH cavitation primary is the minimum pressure required to prevent cavitation in a pump.
NPSH stands for Net Positive Suction Head.
Cavitation is the formation of vapor bubbles in a liquid due to low pressure.
NPSH cavitation primary is the minimum pressure required to prevent the formation of vapor bubbles in a pump.
It is important to maintain NPSH cavitation primary to prevent damage to the pump and ensure efficient op...
Interlock is a safety mechanism that prevents two or more actions from occurring simultaneously.
Interlock ensures that a process or machine cannot be operated until certain conditions are met.
It is used to prevent accidents and damage to equipment.
Examples of interlocks include safety switches, emergency stop buttons, and lockout/tagout procedures.
Interlocks are commonly used in industrial settings, such as manufacturi...
LMTD stands for Logarithmic Mean Temperature Difference.
LMTD is a measure of the temperature difference between two fluids in a heat exchanger.
It is calculated using the logarithmic average of the temperature difference between the hot and cold fluids.
LMTD is used to determine the heat transfer rate in a heat exchanger.
It is an important parameter in the design and operation of heat exchangers.
For example, in a shell a...
I applied via Recruitment Consulltant and was interviewed before Apr 2022. There were 2 interview rounds.
I applied via Company Website and was interviewed in Feb 2022. There were 2 interview rounds.
I am a highly skilled and experienced DCS Operator with a strong background in industrial automation.
I have been working in the field for over 10 years.
I am proficient in operating and troubleshooting various Distributed Control Systems (DCS).
I have a deep understanding of process control and instrumentation.
I am familiar with industry standards and safety protocols.
I have successfully implemented process improvements ...
I applied via Naukri.com and was interviewed in Jan 2023. There were 2 interview rounds.
I was interviewed before Jan 2024.
Effluent management & chemicals question
I applied via Company Website and was interviewed before Aug 2023. There was 1 interview round.
Types of reactors include batch reactors, continuous stirred tank reactors, plug flow reactors, and fluidized bed reactors.
Batch reactors operate in a closed system with a fixed amount of reactants.
Continuous stirred tank reactors have continuous flow of reactants and products.
Plug flow reactors have a continuous flow with no mixing of reactants along the length of the reactor.
Fluidized bed reactors use a fluid to susp...
A Distributed Control System (DCS) is a computerized control system used to control and monitor industrial processes.
Consists of multiple control elements distributed throughout a system
Allows for centralized control and monitoring of processes
Used in industries such as oil and gas, power generation, and manufacturing
Examples include Honeywell Experion PKS, Emerson DeltaV, and Siemens PCS 7
Control valves are used to regulate the flow of fluids in a process system by varying the size of the flow passage.
Globe valves: used for throttling and control of flow
Butterfly valves: used for on/off control of flow
Ball valves: used for quick shut-off
Diaphragm valves: used for precise control of flow
Types of alarms in a DCS system include process alarms, equipment alarms, safety alarms, and communication alarms.
Process alarms indicate issues with the process being controlled by the DCS system
Equipment alarms alert to malfunctions or failures of equipment connected to the DCS system
Safety alarms warn of potentially dangerous situations that require immediate attention
Communication alarms signal problems with the co
DCS stands for Distributed Control System, a computerized control system used to control and monitor industrial processes.
DCS is used in industries such as oil refining, power generation, and manufacturing.
It allows for centralized control of multiple control loops and process units.
DCS typically consists of controllers distributed throughout the plant, connected by a communication network.
Examples of DCS vendors inclu
DCS (Distributed Control System) is a system used to control and monitor industrial processes.
DCS uses multiple controllers distributed throughout a plant to control various processes
It allows for centralized monitoring and control of the entire system
DCS systems often use graphical interfaces for operators to interact with the system
DCS can be used in industries such as oil and gas, power generation, and manufacturing
TLV of chlorine is the maximum concentration of chlorine that a worker can be exposed to without experiencing adverse health effects.
TLV stands for Threshold Limit Value
TLV for chlorine is 1 ppm (parts per million)
TLV is set by the American Conference of Governmental Industrial Hygienists (ACGIH)
Exposure to chlorine above TLV can cause respiratory irritation, coughing, and chest tightness
Distillation is a process used to separate components of a liquid mixture based on their boiling points. Reflux is the return of condensed vapors back into the distillation system.
Distillation involves heating a liquid mixture to create vapor, then cooling the vapor to collect the separated components.
The components with lower boiling points vaporize first and are collected, while the components with higher boiling poi...
I applied via Walk-in and was interviewed in Jan 2023. There were 3 interview rounds.
Cascade loops are a series of control loops where the output of one loop is used as the setpoint for the next loop.
Cascade loops improve control performance by reducing the effect of disturbances.
They are commonly used in industrial processes where multiple variables need to be controlled.
An example is a cascade control system in a chemical plant where the flow rate of a reactant is controlled based on the level in a t
I applied via Company Website and was interviewed in Jan 2024. There were 2 interview rounds.
A distillation column is a piece of equipment used in chemical processes to separate mixtures into their individual components.
Distillation columns use the principle of vapor-liquid equilibrium to separate components based on their boiling points.
They consist of a vertical column with multiple trays or packing material to facilitate the separation process.
The feed mixture is introduced at the bottom of the column, and ...
Open Loop is a control system where the output is not fed back to the input for correction or adjustment.
Open Loop control does not use feedback to make adjustments
It relies solely on the input and predefined control actions
Examples include automatic doors, traffic lights, and irrigation systems
Reaction is the response or behavior triggered by a stimulus or event.
Reaction is a response to a stimulus or event.
It can be physical, emotional, or cognitive.
Reactions can vary in intensity and duration.
Examples include flinching when touched by something hot, feeling happy after receiving good news, or thinking critically when faced with a problem.
Heat exchangers are devices used to transfer heat between two or more fluids.
Shell and tube heat exchanger
Plate heat exchanger
Double pipe heat exchanger
Finned tube heat exchanger
Regenerative heat exchanger
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Aarti Industries
Vinati Organics
Atul
Navin Fluorine International