JSW Steel Electrical Operations and Maintenance Engineer Interview Questions and Answers

Q1. PLC and logics,ios
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Q2. Ht,lt motor , protection and breakers
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Q1. Transformer maintenance
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Q2. Panel MCC PCC maintenance
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Q3. Motor maintenance
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Q1. Lighting maintenance
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Q2. HT breaker maintenance
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Q1. What is Transformers, Motor, Genretor, Electric genetion
Ans. 
Transformers, motors, generators, and electric generation are essential components in electrical systems.
• Transformers are devices that transfer electrical energy between two or more circuits through electromagnetic induction.

• Motors convert electrical energy into mechanical energy to drive machinery.

• Generators convert mechanical energy into electrical energy.

• Electric generation involves the process of producing electric...read more
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Q2. KVL,KCL,Thevenin Theorem,Nodal analysis
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Q3. Can you explain what a DC motors
Ans. 
DC motors are electric motors that operate using direct current (DC) power sources.
• DC motors convert electrical energy into mechanical energy through the interaction of magnetic fields.

• They are commonly used in appliances, power tools, and electric vehicles.

• DC motors have two main types: brushed DC motors and brushless DC motors.

• Brushed DC motors use brushes to conduct current, while brushless DC motors use electronic ...read more
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Number System, coding and decoding, Analogies

Q1. What is Nodal analysis
Ans. 
Nodal analysis is a method used in electrical engineering to determine the voltage at each node in a circuit.
• Nodal analysis involves writing Kirchhoff's Current Law equations for each node in a circuit.

• It is used to analyze complex circuits with multiple nodes and voltage sources.

• The goal of nodal analysis is to determine the voltage at each node relative to a reference point, usually ground.

• It is a powerful tool for s...read more
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Q2. Explain the Transformer
Ans. 
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Consists of two coils of wire, known as primary and secondary coils

• 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 levels in power distribution systems

• Commo...read more
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Q1. Machine transmission distribution
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Q2. Electric generation
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Q3. Electric measurement
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Q1. What's is tha 3 phase tranformer
Ans. 
A 3 phase transformer is a type of transformer that is designed to handle three-phase power distribution systems.
• Consists of three sets of primary and secondary windings

• Used in power distribution systems to step up or step down voltage in three-phase circuits

• Commonly used in industrial and commercial applications

• Examples include distribution transformers, power transformers, and autotransformers
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Q1. What is the 3 phase tranformer
Ans. 
A 3 phase transformer is a type of transformer that is designed to handle three-phase power distribution systems.
• Consists of three sets of primary and secondary windings

• Used in power distribution systems to step up or step down voltage in three-phase circuits

• Commonly used in industrial and commercial applications

• Examples include distribution transformers, power transformers, and autotransformers
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Q2. 2 phase tranformer what is the
Ans. 
A 2 phase transformer is a type of transformer that has two primary and two secondary windings.
• Consists of two primary windings and two secondary windings

• Used in certain industrial applications where a 3 phase transformer is not feasible

• Less common compared to single phase and 3 phase transformers
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Q3. Kichoff current law what is
Ans. 
Kirchhoff's current law states that the total current entering a junction is equal to the total current leaving the junction.
• Total current entering a junction = Total current leaving the junction

• It is based on the principle of conservation of charge

• Used to analyze and solve electrical circuits
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Q4. What is the semi conductor
Ans. 
A semiconductor is a material that has electrical conductivity between a conductor and an insulator.
• Semiconductors have a conductivity between that of a conductor and an insulator

• They are used in electronic devices such as transistors, diodes, and integrated circuits

• Common semiconductor materials include silicon, germanium, and gallium arsenide
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Q5. What is tha current law
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Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the conductor.
• Current (I) = Voltage (V) / Resistance (R)

• It helps in calculating the current flowing through a circuit based on the voltage and resistance values.

• It is represented by the formula I = V/R.

• Ohm's Law is fundamental in understanding and analy
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Q1. Generator protection
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Q2. Transformer protection
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Q3. Load distribution
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Q1. Tell me about yourself
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Q1. Power factor What is vfd Difference between ac and dc motor
Ans. 
Power factor is the ratio of real power to apparent power in an AC circuit. VFD stands for Variable Frequency Drive. AC motors run on alternating current while DC motors run on direct current.
• Power factor is a measure of how effectively electrical power is being used in a circuit.

• It is calculated by dividing the real power (in watts) by the apparent power (in volt-amperes).

• A power factor of 1 indicates that all the pow...read more
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Q2. Types of load cell
Ans. 
Types of load cells include strain gauge load cells, hydraulic load cells, and capacitive load cells.
• Strain gauge load cells measure the strain or deformation of a material.

• Hydraulic load cells use hydraulic fluid to measure force.

• Capacitive load cells measure changes in capacitance to determine force.

• Other types of load cells include piezoelectric load cells and pneumatic load cells.
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Q1. Technical knowledge in Electrical And internship and working field
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Q1. Hr question for study and work fild
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Q2. Abouts rhe sponge iron power plant
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