JSW Steel Diploma Electrical Engineer Interview Questions, Process, and Tips

Q1. Motor Starter panel EPMCC PMCC MCC ALL ELECTRICAL MAINTENANCE
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Q2. Motor Starter with contactor really protection
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Motor starters with contactors provide protection by controlling the electrical supply to the motor.
• Motor starters with contactors prevent overload by disconnecting the motor from the power supply when excessive current is detected.

• They also protect against short circuits by quickly interrupting the circuit in case of a fault.

• Thermal overload relays can be used in conjunction with contactors to provide additional prote...read more
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Q1. What is Cooling Tower .?
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A cooling tower is a specialized heat exchanger in which air and water are brought into direct contact to reduce the water's temperature.
• Cooling towers are commonly used in industrial and HVAC systems to remove heat from a process or building.

• They work by evaporating a small portion of the water to remove heat from the remaining water stream.

• The cooled water is then circulated back into the system to absorb more heat.

• C...read more
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Q2. How many Types of power Plant .?
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There are several types of power plants including thermal, hydroelectric, nuclear, solar, wind, and geothermal.
• Thermal power plants use fossil fuels like coal, oil, or natural gas to generate electricity.

• Hydroelectric power plants harness the energy of flowing water to generate electricity.

• Nuclear power plants use nuclear reactions to produce electricity.

• Solar power plants convert sunlight into electricity using photov...read more
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Q3. What is transformer.?
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A transformer is a static electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Consists of two coils of wire (primary and secondary) wound 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 to step up or step down voltage in power distribution systems

• ...read more
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Q4. What is Resistance.?
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Resistance is the opposition to the flow of electric current in a circuit.
• Resistance is measured in ohms (Ω).

• It is caused by the collisions of electrons with atoms in a conductor.

• Higher resistance leads to lower current flow in a circuit.

• Resistance can be affected by factors like material, length, and temperature.

• Examples of high resistance materials include rubber and glass.

• Examples of low resistance materials include
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Q1. Electrical engineering question
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Interest in electrical equipment skill skill development engineer
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Q1. Electrical machine
Ans. Type of motor . working principle
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Diploma in electrical engineering in Gumla polytechnic Gumla Jharkhand

Q1. Electrical machine and power system
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Mechanical energy to electrical energy convert in electrical machine and power system is a generation transmission and distribution of electrical energy
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Q2. Transformers working principle
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Transformers work on the principle of electromagnetic induction to transfer electrical energy between two or more circuits.
• Transformers consist of two or more coils of wire called windings.

• The primary winding is connected to the input voltage source, while the secondary winding is connected to the load.

• When an alternating current (AC) flows through the primary winding, it creates a changing magnetic field.

• This changing...read more
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Q3. Motor working principle
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Motor working principle
• A motor converts electrical energy into mechanical energy

• It operates on the principle of electromagnetic induction

• When current flows through a coil in a magnetic field, a force is generated, causing the coil to rotate

• This rotation is transferred to the motor shaft, resulting in mechanical motion

• Different types of motors include DC motors, AC motors, and stepper motors
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Q4. Type of motor and type of transformer
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The type of motor can be AC or DC, while the type of transformer can be step-up or step-down.
• AC motors are commonly used in household appliances and industrial machinery.

• DC motors are often used in electric vehicles and robotics.

• Step-up transformers increase voltage while step-down transformers decrease voltage.

• Transformers are used in power distribution systems to transfer electrical energy between different voltage l
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Q5. What is circuit breaker
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A circuit breaker is an electrical switch designed to protect an electrical circuit from damage caused by excess current.
• It automatically interrupts the flow of electricity when a fault is detected.

• It prevents damage to electrical equipment and reduces the risk of fire.

• Circuit breakers can be reset after tripping, unlike fuses which need to be replaced.

• They are commonly used in residential, commercial, and industrial a...read more
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Q6. Types of circuit
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There are three types of circuits: series, parallel, and combination.
• Series circuit: components are connected in a single path, current is the same throughout, voltage divides across components.

• Parallel circuit: components are connected in multiple paths, voltage is the same across components, current divides across paths.

• Combination circuit: a mix of series and parallel circuits, components are connected in both serie
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Q7. Dol starter power wiring and control
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Q8. What is CT and PT
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CT stands for Current Transformer and PT stands for Potential Transformer.
• CT is used to measure high currents by stepping down the current to a manageable level.

• PT is used to measure high voltages by stepping down the voltage to a safe level.

• CT and PT are commonly used in power systems for protection, metering, and control purposes.

• CTs and PTs are typically connected to instruments, relays, or meters to provide accurat...read more
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Q9. What is register
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A register is a small amount of fast memory located within a computer's CPU.
• Registers store data that the CPU needs to access quickly.

• They are used to hold instructions, data, and addresses during the execution of a program.

• Registers are faster to access than main memory, allowing for faster processing.

• Examples of registers include the program counter, instruction register, and general-purpose registers.
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Q10. What is turbine
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A turbine is a device that converts the energy from a fluid flow into useful work.
• Turbines are commonly used in power generation to convert the energy of steam, water, or gas into mechanical energy.

• They consist of a rotor with blades that are driven by the fluid flow, causing the rotor to rotate.

• The rotation of the rotor can be used to generate electricity or perform other types of work.

• Different types of turbines incl...read more
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Q1. All electrical types
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The question is asking for knowledge about all types of electrical systems.
• Knowledge of different types of electrical systems such as AC, DC, single-phase, three-phase, etc.

• Understanding of electrical components and their functions, such as resistors, capacitors, transformers, etc.

• Familiarity with electrical codes and regulations.

• Ability to read and interpret electrical schematics and diagrams.

• Troubleshooting skills to...read more
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Q2. All electrical and general types
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Q1. What are your salary expectations?
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Q2. Share details of your previous job.
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Q3. Where do you see yourself in 5 years?
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Q4. Tell me about yourself.
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