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posted on 12 Dec 2022
I applied via Referral and was interviewed before Dec 2021. There were 3 interview rounds.
This test contain electrical , refrigeration, Mechanical questions.
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I applied via Naukri.com and was interviewed before Feb 2021. There was 1 interview round.
Current is the flow of electric charge in a circuit.
Current is measured in amperes (A).
It is the rate at which electric charge flows through a conductor.
Current can be either direct current (DC) or alternating current (AC).
In a DC circuit, the current flows in one direction only.
In an AC circuit, the current changes direction periodically.
Current is caused by the movement of electrons or other charged particles.
It is e...
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
Transformers are used to increase or decrease the voltage in an electrical circuit.
They consist of two or more coils of wire, known as windings, that are wound around a core made of magnetic material.
The primary winding is connected to the power source, while the secondary winding is con...
A capacitor is an electronic component that stores and releases electrical energy.
A capacitor consists of two conductive plates separated by an insulating material called a dielectric.
When a voltage is applied across the plates, one plate accumulates positive charge while the other accumulates negative charge.
Capacitors are commonly used in electronic circuits for energy storage, filtering, timing, and coupling.
They ca...
A fuse is a safety device that protects electrical circuits from excessive current flow.
A fuse is a small, thin wire or strip of metal that melts when excessive current flows through it.
When a fuse melts, it breaks the circuit and prevents further flow of current, protecting the electrical equipment.
Fuses are commonly used in electrical systems to prevent damage from short circuits or overloads.
They are rated for speci...
I applied via LinkedIn and was interviewed in Mar 2022. There were 3 interview rounds.
Calibration procedures for various instruments including air flow, control valves, gate valves, dampers, and nozzle valves.
Calibration involves comparing the readings of an instrument to a known standard.
Air flow can be calibrated using a pitot tube or hot wire anemometer.
Control valves can be calibrated by adjusting the position of the valve stem.
Gate valves can be calibrated by measuring the torque required to turn t...
I applied via Job Fair and was interviewed in Sep 2022. There were 2 interview rounds.
HVAC stands for Heating, Ventilation, and Air Conditioning.
HVAC is an acronym for Heating, Ventilation, and Air Conditioning.
It refers to the technology used for indoor environmental comfort.
HVAC systems are responsible for heating, cooling, and controlling the air quality in buildings.
Examples of HVAC equipment include furnaces, air conditioners, heat pumps, and ventilation systems.
PAC full form is Package Air Conditioner.
PAC is a type of air conditioning system that is self-contained and can be installed in a single package.
It is commonly used in commercial and industrial settings.
PAC units are designed to be compact and easy to install, making them a popular choice for retrofitting older buildings.
Some examples of PAC units include rooftop units, wall-mounted units, and floor-mounted units.
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 through a conductor
Direct current (DC) flows in one direction, while alternating current (AC) changes direction periodically
A circuit breaker is an electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.
Circuit breakers detect faults in the electrical system and interrupt the flow of electricity to prevent damage.
They consist of a switch mechanism and a tripping mechanism that activates when a fault is detected.
Circuit breakers can be reset manually or automatically after tripping.
Example...
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
Consists of two coils of wire (primary and secondary) wrapped around a core
Primary coil receives electrical energy and creates a magnetic field
Magnetic field induces a voltage in the secondary coil, transferring energy
Used in power distribution, voltage regulation, and electrical isolati...
I applied via Referral and was interviewed in Jan 2024. There was 1 interview round.
Circuit breakers are essential safety devices that protect electrical circuits from overloads and short circuits.
Circuit breakers automatically cut off power when there is an overload or short circuit to prevent damage to the electrical system.
They are more convenient and safer than fuses, as they can be easily reset after tripping.
There are different types of circuit breakers, such as thermal, magnetic, and combinatio...
I applied via Company Website and was interviewed in Feb 2021. There was 1 interview round.
AC and DC are two types of electrical current with different characteristics.
AC stands for alternating current, while DC stands for direct current.
AC periodically changes direction, while DC flows in one direction.
AC is used for power transmission over long distances, while DC is used for electronic devices.
AC can be easily converted to different voltages using transformers, while DC requires converters or inverters.
Ex...
Single-phase and three-phase supply differ in the number of power lines and voltage waveform.
Single-phase supply has one power line and a sinusoidal voltage waveform.
Three-phase supply has three power lines and a balanced sinusoidal voltage waveform.
Single-phase supply is commonly used in residential applications.
Three-phase supply is used in industrial and commercial applications.
Three-phase supply provides higher pow...
Kirchhoff's current law states that the total current entering a junction is equal to the total current leaving the junction.
The sum of all currents entering a junction is equal to the sum of all currents leaving the junction.
This law is based on the principle of conservation of charge.
It is used to analyze circuits and determine unknown currents.
For example, if a junction has three currents entering and two currents l...
The statement refers to Kirchhoff's Current Law which states that the sum of currents entering a node is equal to the sum of currents leaving the node.
Kirchhoff's Current Law is a fundamental law in electrical engineering
It is also known as Kirchhoff's First Law or KCL
The law applies to any node in an electrical circuit
The algebraic sum of currents entering the node is equal to the algebraic sum of currents leaving the...
Newton's third law states that for every action, there is an equal and opposite reaction.
Newton's third law is also known as the law of action and reaction.
It means that whenever an object exerts a force on another object, the second object exerts an equal and opposite force on the first object.
For example, if you push a wall, the wall pushes back with an equal amount of force.
This law is applicable to all types of for...
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