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I applied via campus placement at Vellore Institute of Technology (VIT) and was interviewed before Sep 2023. There were 2 interview rounds.
Bearings in motors can cause poor power factor due to friction and inefficiency.
Friction in bearings can lead to increased energy consumption and lower power factor.
Worn out bearings can cause misalignment and imbalance in the motor, affecting power factor.
Improper lubrication of bearings can increase friction and reduce efficiency, impacting power factor.
Examples: A motor with worn out bearings may have a power factor...
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I applied via Campus Placement
Normal psychology based questions
posted on 14 Sep 2023
I applied via Campus Placement and was interviewed in Mar 2023. There were 2 interview rounds.
Basic Reasoning questions and Technical questions.
A device that converts mechanical energy into electrical energy is called a generator.
Generators are commonly used in power plants to convert mechanical energy from turbines into electrical energy.
Examples include wind turbines, hydroelectric dams, and gas-powered generators.
Generators work on the principle of electromagnetic induction, where a conductor moving through a magnetic field generates an electric current.
Valves are devices used to control the flow of fluids in a system. They can be classified into different types based on their design and function.
Gate valves: used to fully open or close the flow of fluid
Ball valves: uses a rotating ball to control flow
Butterfly valves: uses a disc to control flow
Check valves: allows flow in one direction only
Pressure relief valves: opens to release excess pressure
Globe valves: used fo...
Motors are devices that convert electrical energy into mechanical energy. There are various types of motors including DC motors, AC motors, stepper motors, and servo motors.
Motors work by using electromagnetic fields to generate motion
DC motors operate using direct current and are commonly found in household appliances like fans and toys
AC motors run on alternating current and are used in industrial applications such a...
Brushless DC motors are the most efficient due to their lack of friction and heat loss.
Brushless DC motors are more efficient than brushed DC motors because they have no brushes to cause friction and heat loss.
Brushless DC motors also have a higher power-to-weight ratio and require less maintenance.
Examples of applications where brushless DC motors are commonly used include electric vehicles, drones, and industrial aut
posted on 24 Feb 2024
Aptitude question are like find the least value from option and opposite words
Analytical aptitude is all about mirror or water image
I applied via campus placement at National Institute of Technology (NIT), Kurukshetra and was interviewed in May 2024. There was 1 interview round.
Electricity is transmitted for long distances through high voltage power lines.
Electricity is generated at power plants using generators.
The electricity is then stepped up to high voltages using transformers to reduce energy losses during transmission.
High voltage power lines are used to transmit electricity over long distances.
At the destination, the voltage is stepped down using transformers for distribution to homes
Corona effect is the phenomenon where electrical discharge occurs due to ionization of air surrounding a conductor at high voltage.
Corona effect is a type of electrical discharge that can occur in high voltage systems.
It happens when the air surrounding a conductor becomes ionized, leading to a visible glow or corona discharge.
Corona effect can cause power loss, audible noise, and radio interference in electrical syste...
posted on 19 Feb 2023
I applied via Campus Placement
Basic questions from your engineering branch. More theory and less numerical based questions.
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