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Variable frequency drives control the speed of an electric motor by varying the frequency of the electrical supply.
Variable frequency drives (VFDs) are used to control the speed of AC motors by adjusting the frequency of the electrical input.
VFDs can help save energy by matching the motor speed to the actual load requirements.
They are commonly used in HVAC systems, pumps, conveyors, and other industrial applications.
VF...
A DOL starter is a direct-on-line starter used in electrical systems to start and stop motors.
DOL stands for Direct-On-Line.
It is the simplest and most common type of motor starter.
The DOL starter directly connects the motor to the power supply, providing full voltage at start.
It consists of a contactor, overload relay, and start and stop buttons.
When the start button is pressed, the contactor closes and the motor star...
I applied via Company Website and was interviewed in Jun 2023. There were 3 interview rounds.
Anymore he want to ask me . I can anle to answer .
A motor in electrical engineering is a device that converts electrical energy into mechanical energy to produce motion.
Motors are commonly used in various applications such as industrial machinery, household appliances, and vehicles.
There are different types of motors including AC motors, DC motors, and synchronous motors.
Motors consist of a rotor and a stator, with the rotor rotating inside the stator to generate moti...
A generator in electrical engineering is a device that converts mechanical energy into electrical energy.
Generators use electromagnetic induction to generate electricity
They are commonly used in power plants, wind turbines, and portable generators
Generators can be powered by various sources such as gasoline, diesel, natural gas, or renewable energy sources like solar or wind
They play a crucial role in providing backup
AC current is the flow of electric charge that periodically reverses direction, typically found in household appliances and power distribution systems.
AC current alternates direction periodically
Commonly used in household appliances and power distribution systems
AC current is represented by a sine wave
AC current is measured in Hertz (Hz)
DC current in electrical engineering is the flow of electric charge in one direction only.
DC stands for direct current, which is a constant flow of electric charge in one direction
DC current is typically produced by batteries, solar cells, and rectifiers
DC current is used in many electronic devices such as laptops, cell phones, and LED lights
Electricity in electrical engineering refers to the flow of electric charge through a conductor.
Electricity is the movement of electrons along a path called a conductor
It is measured in units of voltage, current, and resistance
Electricity can be generated by sources such as batteries, generators, and solar panels
posted on 19 May 2017
I was interviewed in Oct 2016.
Experienced retail professional with strong leadership skills and a passion for customer service.
Over 5 years of retail management experience
Proven track record of increasing sales and improving customer satisfaction
Strong leadership and team-building skills
Passionate about providing excellent customer service
Bachelor's degree in Business Administration
Alumina is obtained from bauxite through the Bayer process.
Bauxite is crushed and mixed with sodium hydroxide to form a slurry.
The slurry is heated and pressurized in a digester to dissolve the alumina content.
The resulting solution is cooled and filtered to remove impurities.
The purified solution is then heated to precipitate the alumina as a white powder.
The alumina powder is washed, dried, and calcined to produce pu...
The reaction for Al extraction from alumina involves the reduction of alumina using carbon or electrolysis.
Alumina (Al2O3) is first converted into aluminum chloride (AlCl3) by reacting with hydrochloric acid.
The aluminum chloride is then reduced to aluminum metal by either carbon reduction or electrolysis.
In carbon reduction, carbon (usually in the form of coke) is heated with the aluminum chloride to produce aluminum ...
There are four main types of cast iron: gray iron, white iron, ductile iron, and malleable iron.
Gray iron is the most common type and has excellent castability and good machinability.
White iron is very hard and brittle, often used for wear-resistant applications.
Ductile iron has high strength and ductility, making it suitable for a wide range of applications.
Malleable iron is heat-treated to improve its strength and du
I applied via Walk-in and was interviewed before Apr 2020. There was 1 interview round.
A transformer is an electrical device that transfers electrical energy from one circuit to another through electromagnetic induction.
Transformers are used to increase or decrease the voltage of an alternating current (AC) power supply.
They consist of two coils of wire, known as the primary and secondary coils, which are wrapped around a magnetic core.
When an AC voltage is applied to the primary coil, it creates a magne...
The type of breaker used depends on the electrical load and the circuit requirements.
The most common types of breakers are standard, AFCI, GFCI, and dual-function.
Standard breakers are used for general-purpose circuits.
AFCI breakers are used for circuits that power bedrooms and living rooms.
GFCI breakers are used for circuits that power bathrooms, kitchens, and outdoor areas.
Dual-function breakers combine AFCI and GFCI...
Conductors are materials that allow electricity to flow through them. There are different types of conductors used in electrical systems.
Copper is the most commonly used conductor in electrical wiring
Aluminum is also used as a conductor, especially in high voltage power transmission
Silver is the best conductor, but it is too expensive for most applications
Gold is also a good conductor, but it is even more expensive tha...
MCB is a miniature circuit breaker while MCCB is a molded case circuit breaker.
MCB is used for low current applications while MCCB is used for high current applications.
MCB is rated up to 100 amps while MCCB can be rated up to 2500 amps.
MCCB has adjustable trip settings while MCB does not.
MCCB is more expensive than MCB.
Examples of MCB brands include Legrand and Schneider while examples of MCCB brands include Siemens a
I applied via Approached by Company and was interviewed before May 2021. There were 2 interview rounds.
posted on 10 Jun 2021
I applied via Naukri.com and was interviewed in May 2021. There was 1 interview round.
I applied via Company Website and was interviewed before Sep 2021. There were 2 interview rounds.
I applied via Referral and was interviewed before Oct 2020. There was 1 interview round.
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