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posted on 22 Feb 2024
I applied via Walk-in and was interviewed in Jan 2024. There was 1 interview round.
I applied via Naukri.com and was interviewed in Jan 2024. There was 1 interview round.
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
Consists of two coils of wire, known as primary and secondary coils
Primary coil receives electrical energy and creates a magnetic field
Magnetic field induces a voltage in the secondary coil, transferring energy
Used to step up or step down voltage in power distribution systems
Examples include power t...
Types of transformers include step-up, step-down, isolation, autotransformer, and instrument transformer.
Step-up transformer increases voltage
Step-down transformer decreases voltage
Isolation transformer provides electrical isolation between primary and secondary windings
Autotransformer has a single winding with multiple taps
Instrument transformer is used for measuring current or voltage in high voltage circuits
A current transformer is a type of instrument transformer that is used to measure alternating current.
Current transformers step down current to a safe level for measurement or protection purposes.
They have a primary winding connected in series with the circuit carrying the current to be measured.
The secondary winding is connected to measuring or protective devices.
Current transformers are commonly used in power systems...
Current transformer is used to measure current while potential transformer is used to measure voltage.
Current transformer is connected in series with the circuit being measured, while potential transformer is connected in parallel.
Current transformer steps down the current to a measurable level, while potential transformer steps down the voltage.
Current transformer is used for protection and metering purposes, while po...
Current is the flow of electric charge in a circuit.
Current is measured in Amperes (A).
It is the rate of flow of electric charge past a point in a circuit.
Current can be either direct current (DC) or alternating current (AC).
In a series circuit, the current is the same at all points.
In a parallel circuit, the total current is divided among the branches.
Ohm's Law relates current, voltage, and resistance: I = V/R.
Voltage is the difference in electric potential between two points in a circuit, measured in volts.
Voltage is the driving force that pushes electric current through a circuit
It is measured in volts (V)
Higher voltage means more potential energy available to move electrons
Voltage can be DC (direct current) or AC (alternating current)
Example: A battery provides a voltage of 1.5V to power a flashlight
I applied via Referral and was interviewed in Feb 2019. There was 1 interview round.
UPS systems can be connected in parallel for redundancy and increased capacity.
Ensure that the UPS systems have the same voltage and frequency ratings.
Connect the output of each UPS system to a common bus bar.
Use a synchronization module to ensure that the UPS systems are in phase with each other.
Ensure that the load is evenly distributed between the UPS systems.
Perform regular maintenance and testing to ensure proper ...
Chiller operation cycle involves refrigerant compression, condensation, expansion, and evaporation.
Refrigerant is compressed by the compressor
The compressed refrigerant is then condensed in the condenser
The high-pressure liquid refrigerant then passes through an expansion valve
The refrigerant then evaporates in the evaporator, absorbing heat from the chilled water
The low-pressure refrigerant then returns to the compres
Reasoning , mathematics
Behaviour refers to the way in which a person or animal acts or conducts themselves in response to a particular situation or stimulus.
Behaviour is influenced by genetics, environment, and past experiences.
It can be observed and measured through actions, reactions, and responses.
Behaviour can be categorized as either innate (instinctual) or learned.
Examples of behaviour include aggression, shyness, curiosity, and friend
The best method in power transfers is through high voltage transmission lines.
High voltage transmission lines are more efficient in transferring power over long distances.
Using transformers to step up the voltage before transmission and step down the voltage at the receiving end helps minimize power loss.
HVDC (High Voltage Direct Current) transmission is another efficient method for long distance power transfers.
Smart ...
Current is the flow of electric charge through a conductor.
Current is measured in Amperes (A)
It is the rate of flow of electric charge
Current can be either direct current (DC) or alternating current (AC)
Examples: A light bulb connected to a power source has current flowing through it
In a circuit, current flows from the positive terminal of the voltage source to the negative terminal
Methods to convert inverter include pulse width modulation, sine wave modulation, and square wave modulation.
Pulse width modulation (PWM) is a common method used to convert inverter signals by varying the width of the pulses.
Sine wave modulation involves generating a sine wave signal to mimic the output of an inverter.
Square wave modulation produces a square wave output by switching between high and low voltage levels.
...
I applied via Recruitment Consulltant and was interviewed before Oct 2020. There was 1 interview round.
I have 3 years of experience working as an Electrical Engineer in a power distribution company.
Designed electrical systems for new construction projects
Performed regular maintenance on electrical equipment
Troubleshooted and repaired electrical issues in a timely manner
posted on 30 May 2024
I applied via Campus Placement and was interviewed in Apr 2024. There was 1 interview round.
Ohm's Law states that current is equal to voltage divided by resistance.
Ohm's Law is a fundamental principle in electrical engineering
Current (I) is measured in Amperes (A)
Voltage (V) is measured in Volts (V)
Resistance (R) is measured in Ohms (Ω)
The formula I = V/R can be used to calculate current in a circuit
Ohm's law states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points.
Ohm's law is represented by the equation V = IR, where V is voltage, I is current, and R is resistance.
It is named after German physicist Georg Simon Ohm.
Ohm's law is fundamental in the field of electrical engineering and is used to analyze and design electrical circuits.
It help...
Weber (Wb)
The SI unit of flux is Weber (Wb)
Flux is a measure of the flow of a physical quantity through a surface
It is commonly used in electromagnetism and is defined as the amount of magnetic field passing through a surface
AC stands for alternating current, which changes direction periodically, while DC stands for direct current, which flows in one direction.
AC changes direction periodically, while DC flows in one direction constantly.
AC is used in household appliances and power distribution, while DC is used in batteries and electronic devices.
AC can be easily converted to different voltage levels using transformers, while DC requires m...
Current carrying in a conductor can be calculated using Ohm's Law, which states that current (I) equals voltage (V) divided by resistance (R).
Use Ohm's Law: I = V / R
Determine the voltage across the conductor
Find the resistance of the conductor
Calculate the current flowing through the conductor using the formula
I applied via Walk-in and was interviewed in May 2024. There were 2 interview rounds.
The first thing to do in case of a hazard is to ensure the safety of yourself and others.
Assess the situation to determine the nature and extent of the hazard.
Alert others in the vicinity about the hazard.
Follow safety protocols and procedures to mitigate the hazard.
Contact emergency services if necessary.
Evacuate the area if instructed to do so.
Check for clogs in the fuel line, inspect the injector for damage, clean or replace the injector if necessary.
Inspect the fuel line for any clogs or blockages
Check the injector for any damage or malfunction
Clean the injector using appropriate tools and techniques
If cleaning doesn't work, consider replacing the injector
Ensure proper fuel flow and pressure to the injector
Earth leakage can be detected using a residual current device (RCD) or ground fault circuit interrupter (GFCI).
Earth leakage can be detected by measuring the difference in current between the live and neutral wires in a circuit.
A residual current device (RCD) or ground fault circuit interrupter (GFCI) can be used to detect earth leakage and quickly disconnect the power supply to prevent electric shock.
Regular testing o...
I applied via Approached by Company and was interviewed before Apr 2023. There were 3 interview rounds.
Worst worst worst Test is Nothings
The interviewer may have made a mistake or technical issue with the question.
It seems like the interviewer may have accidentally repeated the word 'worst' multiple times.
You can politely ask for clarification or confirmation on the question to ensure you understand it correctly.
Remain calm and composed while addressing the issue to show your professionalism.
Provide a thoughtful response based on your interpretation of
The worst experience I had was when I accidentally caused a power outage in a large building during a critical event.
Accidentally causing a power outage in a large building
During a critical event
Dealing with the aftermath and fixing the issue quickly and efficiently
The question seems to be asking about the candidate's experience with handling waste in an electrical technician role.
Discussing proper disposal methods for electronic waste
Explaining the importance of recycling materials in the field
Sharing experiences with hazardous waste management in electrical work
I applied via Company Website and was interviewed in Jun 2022. There was 1 interview round.
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