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I applied via Naukri.com and was interviewed in Oct 2022. There were 2 interview rounds.
Transformer group type refers to the way transformers are connected in a power system.
There are two types of transformer groups: Y (wye) and Delta
Y (wye) transformer group is used for step-down transformers
Delta transformer group is used for step-up transformers
The choice of transformer group depends on the voltage level of the power system and the required voltage transformation ratio
DOL and star delta starter line diagram
DOL (Direct On Line) starter is used for small motors while star delta starter is used for larger motors
DOL starter directly connects the motor to the power source while star delta starter first connects the motor in star configuration and then switches to delta configuration
Line diagrams show the connections between various components in the starter circuit
Natural is grounded in transformer to ensure safety and prevent electrical shocks.
Grounding helps to divert any excess current to the earth, preventing damage to the transformer and other equipment.
It also helps to protect people from electrical shocks by providing a low-resistance path for the current to flow.
In case of a fault, the grounding system will trip the circuit breaker, isolating the transformer from the res...
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posted on 19 Feb 2025
I was interviewed before Feb 2024.
During my dissertation defense, questions were raised about the methodology, data analysis, and implications of my research.
Methodology: How did you choose your research methods? Were there any limitations?
Data analysis: How did you analyze your data? Were there any alternative methods you considered?
Implications: What are the practical implications of your research findings? How do they contribute to the field?
Future ...
posted on 25 Nov 2023
I applied via Walk-in and was interviewed in May 2023. There were 2 interview rounds.
ETP, MEE, RO, STP are principals related to wastewater treatment processes.
ETP stands for Effluent Treatment Plant, which is used to treat industrial wastewater before it is discharged into the environment.
MEE stands for Multiple Effect Evaporator, which is a thermal evaporation process used to concentrate wastewater by removing water through evaporation.
RO stands for Reverse Osmosis, which is a water purification proc...
COD, TDS, TDS, MLSS, MLVSS, ZLD, etc. are abbreviations used in various fields.
COD stands for Chemical Oxygen Demand and is a measure of the amount of oxygen required to oxidize organic and inorganic matter in water.
TDS stands for Total Dissolved Solids and refers to the total concentration of dissolved substances in water.
TDS can include minerals, salts, metals, and other substances.
MLSS stands for Mixed Liquor Suspen...
ETP STP MEE RO process is a series of wastewater treatment processes used to remove pollutants from industrial and domestic wastewater.
ETP stands for Effluent Treatment Plant, which is used to treat industrial wastewater before it is discharged into the environment.
STP stands for Sewage Treatment Plant, which is used to treat domestic wastewater before it is released into rivers or oceans.
MEE stands for Multiple Effect...
EIA stands for Environmental Impact Assessment. Hazardous management refers to the process of identifying, assessing, and controlling hazards in order to prevent accidents and protect the environment.
EIA is a process used to evaluate the potential environmental impacts of a proposed project or development.
It involves identifying and assessing the potential impacts on various aspects such as air, water, land, and biodiv...
The answer to the question is 'WATER'.
The letters ETP, MEE, RO, STP, ZLD, and EIA are all related to different water treatment processes.
ETP stands for Effluent Treatment Plant, which is used to treat industrial wastewater.
MEE stands for Multiple Effect Evaporator, which is used to concentrate liquid waste.
RO stands for Reverse Osmosis, which is a water purification process.
STP stands for Sewage Treatment Plant, which ...
posted on 13 Jun 2024
posted on 9 Feb 2024
I applied via Walk-in and was interviewed in Dec 2022. There were 2 interview rounds.
A compressor is a mechanical device that increases the pressure of a gas by reducing its volume.
Compressors are commonly used in refrigeration and air conditioning systems.
They work by taking in low-pressure gas and compressing it to a higher pressure.
This compression process reduces the volume of the gas, resulting in an increase in pressure.
Compressors can be classified into positive displacement and dynamic types.
Po...
Latent heat is the heat energy absorbed or released during a phase change without a change in temperature.
Latent heat is the energy required to change the state of a substance without changing its temperature.
It is absorbed or released during phase changes such as melting, boiling, or condensation.
Latent heat is responsible for the cooling effect of sweating.
Examples include the heat absorbed when ice melts into water ...
The type of condenser used in domestic air conditioners is typically the air-cooled condenser.
Air-cooled condensers are the most common type used in residential air conditioners.
They work by using a fan to blow air over the condenser coils, which helps to dissipate heat.
This type of condenser does not require a separate water source for cooling.
Examples of air-cooled condensers include the coil and fin condenser and th
The capillary tube is a component in the refrigeration cycle that helps regulate the flow of refrigerant.
The capillary tube is a small, narrow tube made of copper or aluminum.
It is located between the condenser and the evaporator in the refrigeration system.
Its main function is to restrict the flow of high-pressure liquid refrigerant from the condenser to the low-pressure evaporator.
By creating a pressure drop, the cap...
The refrigeration cycle is a process that removes heat from a space and transfers it to the external environment.
The cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.
The compressor compresses the refrigerant gas, raising its temperature and pressure.
The high-pressure gas then flows into the condenser, where it releases heat and condenses into a high-pressure liquid.
The liqu...
I applied via Naukri.com and was interviewed in Feb 2023. There were 2 interview rounds.
HPLC and GC detectors differ in their principles of detection and types of analytes they can detect.
HPLC detectors use UV-Vis, fluorescence, or electrochemical detection to analyze liquid samples.
GC detectors use thermal conductivity, flame ionization, or mass spectrometry to analyze gas samples.
HPLC is used for analyzing polar and non-volatile compounds, while GC is used for analyzing volatile compounds.
HPLC detectors...
I applied via Walk-in and was interviewed before Oct 2022. There were 3 interview rounds.
Basic questions as per qualification for fresher
posted on 1 Feb 2022
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