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I applied via Company Website and was interviewed in Nov 2023. There was 1 interview round.
Transformer oil should be tested for dielectric strength, acidity, water content, and dissolved gas analysis. Significant out gases include methane, ethylene, and acetylene.
Dielectric strength test measures the ability of the oil to withstand electric stress without breaking down.
Acidity test determines the level of acidic compounds present in the oil, which can degrade insulation.
Water content test checks for moisture...
A signal line diagram of a substation is a schematic representation of the electrical connections and components within the substation.
It shows the interconnection between various devices such as transformers, circuit breakers, relays, and meters.
The diagram includes details of control circuits, protection systems, and communication networks within the substation.
Signal line diagrams help in understanding the flow of s...
I applied via Job Fair and was interviewed in Oct 2024. There was 1 interview round.
I applied via LinkedIn and was interviewed in Nov 2023. There was 1 interview round.
I applied via Recruitment Consulltant and was interviewed before Sep 2023. There was 1 interview round.
5S activity is a systematic approach to workplace organization involving Sort, Set in order, Shine, Standardize, and Sustain.
Sort - Remove unnecessary items from the workplace
Set in order - Organize remaining items in a logical manner
Shine - Clean and maintain the workplace regularly
Standardize - Establish standards and procedures for maintaining the workplace
Sustain - Ensure the 5S practices are consistently followed
I have encountered various problems in planta d and have successfully tackled them through effective communication, problem-solving skills, and collaboration with team members.
Identifying the root cause of the problem
Developing a plan of action to address the issue
Communicating with team members to discuss possible solutions
Implementing the chosen solution and monitoring its effectiveness
Adjusting the plan as needed to
Gujarat Alkalies & Chemicals interview questions for popular designations
Get interview-ready with Top Gujarat Alkalies & Chemicals Interview Questions
Technical for 1 hour
Bernoulli's equation relates the pressure, velocity, and elevation of a fluid in a steady flow.
Describes the conservation of energy in a fluid flow system
Equation: P + 0.5 * rho * v^2 + rho * g * h = constant
Pressure, velocity, and elevation terms are related in the equation
Used in various engineering applications such as fluid dynamics and aerodynamics
I applied via Company Website and was interviewed before Feb 2023. There were 3 interview rounds.
I applied via Company Website and was interviewed in Jan 2023. There were 2 interview rounds.
I applied via Company Website and was interviewed before Nov 2022. There were 4 interview rounds.
I applied via Company Website and was interviewed before Mar 2023. There were 2 interview rounds.
Refrigeration cycle is a process in which refrigerant absorbs heat from a low-temperature space and rejects it in a high-temperature space.
Refrigerant absorbs heat from the low-temperature space (evaporator)
Refrigerant is compressed to increase its temperature and pressure
High-temperature refrigerant releases heat in the condenser
Refrigerant expands in the expansion valve to lower its temperature and pressure
Cycle repe
Various types of pumps with characteristics curves
Centrifugal pumps: high flow rates, low pressure, used in HVAC systems
Reciprocating pumps: high pressure, low flow rates, used in hydraulic systems
Diaphragm pumps: positive displacement, used for metering and dosing applications
Gear pumps: used for lubrication systems, constant flow rate
Axial flow pumps: high flow rates, low head, used in irrigation systems
The range of a cooling tower typically varies based on the size and capacity of the unit.
The range of a cooling tower can vary from small residential units to large industrial units.
Smaller cooling towers may have a range of a few tons of cooling capacity, while larger industrial cooling towers can have a range of hundreds or even thousands of tons.
The range of a cooling tower is typically measured in terms of cooling ...
Cooling towers are heat rejection devices that use water to transfer heat from a system into the atmosphere.
Cooling towers work on the principle of evaporation to remove heat from the water being circulated through the tower.
The hot water is pumped to the top of the tower and distributed over the fill or packing, where it is exposed to air.
As the water flows over the fill, some of it evaporates, which removes heat from...
Deaerator is placed at higher elevation to create a pressure difference for efficient removal of dissolved gases from feedwater.
Higher elevation creates a pressure difference which aids in the removal of dissolved gases from feedwater
This helps in preventing corrosion in the boiler system
It also improves the efficiency of the boiler by reducing the amount of oxygen in the feedwater
LP dosing refers to the process of injecting a low pressure chemical solution into a system or process.
LP dosing is commonly used in water treatment plants to add chemicals such as chlorine or coagulants to the water supply.
It is also used in industrial processes to introduce additives or inhibitors into pipelines or equipment.
LP dosing systems typically consist of a pump, piping, and injection point where the chemical...
Stroke length of a reciprocating compressor is the distance the piston travels from top dead center to bottom dead center.
Stroke length is an important parameter in determining the displacement volume of the compressor.
It is typically measured in inches or millimeters.
For example, a reciprocating compressor with a stroke length of 4 inches will have a piston that travels 4 inches up and down within the cylinder.
Stroke ...
Surging and choking are two common operating conditions in centrifugal compressors.
Surging occurs when the flow rate through the compressor is reduced to the point where the compressor cannot maintain a stable flow and pressure. This leads to a pulsating flow and can cause damage to the compressor.
Choking happens when the flow rate through the compressor is increased to the point where the compressor cannot handle the ...
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