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I applied via Naukri.com and was interviewed before Nov 2022. There were 2 interview rounds.
Electronic components work based on Ohm's Law, which relates voltage, current, and resistance.
Ohm's Law states that V = I * R, where V is voltage, I is current, and R is resistance.
Electronic components such as resistors, capacitors, and inductors follow Ohm's Law in their operation.
Understanding Ohm's Law helps in designing and troubleshooting electronic circuits.
For example, in a circuit with a 12V battery and a 4 oh...
I applied via Approached by Company and was interviewed before May 2022. There were 2 interview rounds.
An inverter is an electronic device that converts DC power to AC power.
Inverters are commonly used in solar power systems to convert DC power from solar panels to AC power for use in homes and businesses.
They are also used in cars to convert DC power from the battery to AC power for charging devices.
Inverters come in different sizes and capacities depending on the amount of power they can convert.
They can be pure sine ...
Inverter current can be checked using a clamp meter or a multimeter.
Use a clamp meter to measure the current flowing through the inverter's output wires
Set the clamp meter to the appropriate range and clamp it around one of the output wires
Read the current value displayed on the clamp meter
Alternatively, use a multimeter to measure the voltage drop across a shunt resistor in series with the output wires
Calculate the cu
IGBT stands for Insulated Gate Bipolar Transistor. It is a power semiconductor device used for switching and amplifying electrical power.
IGBT combines the advantages of both MOSFET and BJT transistors
It is used in various applications such as motor drives, power supplies, renewable energy systems, etc.
IGBT has a high input impedance and low on-state voltage drop
It is capable of handling high current and voltage levels
I
The color code of resistance is used to identify the resistance value of a resistor.
The color code consists of four or five colored bands on the resistor.
The first two bands represent the significant digits of the resistance value.
The third band represents the multiplier.
The fourth band represents the tolerance.
The fifth band, if present, represents the temperature coefficient.
For example, a resistor with bands of brow...
A diode is an electronic component that allows current to flow in one direction and blocks it in the opposite direction.
Diodes are commonly used in rectifiers to convert AC to DC
They are also used in voltage regulators to maintain a constant voltage
Diodes can be used as a switch in electronic circuits
They are made of semiconductor materials such as silicon or germanium
IGBT stands for Insulated Gate Bipolar Transistor. It is a power semiconductor device used for switching and amplifying electrical signals.
IGBT combines the advantages of both MOSFET and bipolar junction transistor.
It has a high input impedance like a MOSFET and a low on-state voltage drop like a bipolar transistor.
IGBTs are commonly used in applications such as motor drives, power supplies, and renewable energy system...
To test a battery, you can use a multimeter to measure voltage, perform a load test, and check for any physical damage or leaks.
Use a multimeter to measure the voltage of the battery. A healthy battery should have a voltage close to its rated voltage.
Perform a load test by connecting a known load to the battery and monitoring its voltage drop. A healthy battery should maintain a stable voltage.
Inspect the battery for a...
A MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is a type of transistor used for amplifying or switching electronic signals.
MOSFET is a three-terminal device that consists of a source, a drain, and a gate.
It is made up of a metal gate electrode separated from the semiconductor channel by a thin insulating layer of oxide.
MOSFETs are widely used in various electronic devices such as computers, smartphones, a...
UTL Solar interview questions for designations
I applied via Indeed and was interviewed before Mar 2022. There were 3 interview rounds.
Resistance is the opposition to the flow of electric current.
Resistance is measured in ohms (Ω)
It is caused by the interaction between electrons and the atoms of a material
Materials with high resistance are called insulators, while those with low resistance are called conductors
Resistance can be calculated using Ohm's Law: R = V/I
Examples of resistors include light bulbs, heating elements, and electronic components
A capacitor is an electronic component that stores energy in an electric field, while a diode is a semiconductor device that allows current to flow in only one direction.
Capacitors are commonly used in electronic circuits to filter out noise and stabilize voltage.
Diodes are used in rectifiers, voltage regulators, and signal demodulators.
Capacitors are measured in farads, while diodes are measured in volts and amperes.
A transistor is a semiconductor device used to amplify or switch electronic signals and power.
It has three layers of semiconductor material: P-type, N-type, and P-type.
It can be used as an amplifier to increase the strength of a weak signal.
It can also be used as a switch to turn a circuit on or off.
Transistors are commonly used in electronic devices such as computers, radios, and televisions.
Get interview-ready with Top UTL Solar Interview Questions
I applied via Referral and was interviewed before Aug 2021. There were 2 interview rounds.
I applied via Approached by Company and was interviewed in Apr 2024. There was 1 interview round.
To check the problem in a windvane showing false reading, first ensure it is properly aligned and calibrated. Then check for any obstructions or damage.
Ensure the windvane is properly aligned and calibrated according to manufacturer's instructions.
Check for any obstructions such as debris or bird nests that may be affecting the vane's movement.
Inspect the vane for any damage or wear that could be causing inaccurate rea...
Manpower on site is controlled through proper scheduling, supervision, communication, and monitoring.
Create a detailed schedule outlining tasks, deadlines, and manpower requirements.
Assign specific roles and responsibilities to each team member.
Regularly communicate with the team to ensure everyone is on the same page.
Supervise the work progress and address any issues or delays promptly.
Monitor the performance of each ...
Numericals related questions
Regarding alternators and generators
I applied via Naukri.com and was interviewed in Jul 2021. There were 3 interview rounds.
A circuit breaker is an electrical switch that automatically interrupts the flow of current in a circuit in case of an overload or short circuit.
It is a safety device used to protect electrical circuits from damage caused by excess current flow.
It works by detecting the excess current and interrupting the flow of electricity to prevent damage to the circuit.
Circuit breakers are commonly used in homes, buildings, and in...
A relay is an electrically operated switch that uses an electromagnet to mechanically open or close a circuit.
Relays are commonly used in control circuits to switch high voltage or current using a low voltage signal.
They can be used to control motors, lights, and other electrical devices.
Relays can be classified based on their construction, contact configuration, and operating voltage.
Examples of relays include electro...
Yes, I know how to operate air circuit breaker.
I am familiar with the basic components of an air circuit breaker.
I know how to turn on and off the breaker.
I am aware of the safety precautions that need to be taken while operating the breaker.
I have experience in troubleshooting and repairing air circuit breakers.
I am knowledgeable about the different types of air circuit breakers and their applications.
Relay is an electrically operated switch that opens or closes circuits electronically.
Relays are used to control high voltage circuits with low voltage signals.
They are used in automation systems, power plants, and automobiles.
Examples include electromagnetic relays, solid-state relays, and thermal relays.
A contactor is an electrical device used to control the flow of electricity in a circuit.
Contactor is used to switch on and off electrical power to a load.
It is commonly used in motor control circuits to control the operation of motors.
Contactor helps in protecting electrical circuits from overload or short circuits.
It provides a safe and reliable method of controlling high-power electrical loads.
Contactor can be manua...
I applied via Job Fair and was interviewed in Dec 2023. There were 3 interview rounds.
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