Jindal Saw Senior Electrical Engineer Interview Questions and Answers

Numerical,verbal, logical questions

Body language, polite, communicate effectively and eye contact

Q1. Skills based questions
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Q2. Education based questions
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Q3. Project management based questions
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Q1. Tell about yourself Strength and weakness
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Q2. Why do you choose this company What is your biggest achievement so far
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Q1. AC Drive used in steel industries
Ans. 
AC drives in steel industries control the speed and torque of motors, improving efficiency and reducing energy consumption.
• AC drives regulate the speed and torque of motors used in various processes in steel industries.

• They help in achieving precise control over the production process, leading to improved efficiency.

• AC drives also help in reducing energy consumption and operational costs in steel plants.

• Examples of app...read more
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Q2. ABB DCS operation and its card details,server details etc.
Ans. 
ABB DCS is a distributed control system used in industrial automation, with various cards and servers for operation.
• ABB DCS stands for ABB Distributed Control System, used in industries for automation.

• The system consists of various cards for different functions such as input/output, communication, etc.

• Servers are used to host the software and manage the communication between different components of the system.

• Example: ...read more
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Q1. What is induction furnace nd it's working principle nd related induction furnace breakdown.
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Q2. What is the difference between slip ring and 3 phase induction motor
Ans. 
Slip ring motor has external connections for rotor winding while 3 phase induction motor has a squirrel cage rotor.
• Slip ring motor has external connections for rotor winding, allowing for external control of rotor circuit.

• 3 phase induction motor has a squirrel cage rotor, which is simpler and more rugged.

• Slip ring motor is used in applications where variable speed control is required, such as cranes and hoists.

• 3 phase ...read more
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Q3. What is caster size? Nd related caster questions?
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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. Why do we improve power factor.
Ans. 
Improving power factor helps in reducing energy losses, increasing system efficiency, and reducing electricity costs.
• Improving power factor reduces the amount of reactive power flowing in the system, which in turn reduces energy losses.

• Higher power factor means more efficient use of electricity and less strain on the electrical system.

• Improving power factor can lead to reduced electricity costs for consumers and utilit...read more
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Q2. What is buccholz relay, how does it work?
Ans. 
Buccholz relay is a protective device used in oil-filled transformers to detect faults such as internal arcing or overheating.
• Buccholz relay is installed in the oil pipe connecting the transformer tank and conservator tank.

• It works based on the principle that gas is generated when a fault occurs in the transformer, causing oil level to drop and gas to accumulate in the relay.

• The relay consists of two float switches - o...read more
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Q3. What is DP in siemens communication?
Ans. 
DP in Siemens communication stands for Distributed Peripherals.
• DP is a communication protocol used by Siemens for connecting distributed peripherals to a central control system.

• It allows for real-time data exchange between the peripherals and the control system.

• DP is commonly used in industrial automation applications.

• Examples of DP communication modules include DP/DP couplers and DP slaves.
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Q4. How do we communicate s7 PLC and abb drive using profibus.
Ans. 
To communicate S7 PLC and ABB drive using Profibus, you need to configure the Profibus network, set up the communication parameters, and establish the communication link.
• Configure the Profibus network by setting the correct baud rate, address, and other network parameters.

• Set up the communication parameters on both the S7 PLC and ABB drive to ensure they are compatible with each other.

• Establish the communication link b...read more
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Q1. Om law in v=I×R
Ans. 
Ohm's Law states that the voltage (V) in a circuit is equal to the current (I) multiplied by the resistance (R).
• V = I * R

• Voltage is measured in volts (V)

• Current is measured in amperes (A)

• Resistance is measured in ohms (Ω)

• Example: If a circuit has a current of 2A flowing through a resistance of 5Ω, the voltage would be 10V (2A * 5Ω = 10V)
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Q2. Plc digital input and digital output
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Q3. Analog input and analog output kya hota h
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Q4. Power ka formula kya hota h
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Q5. Ac motor and DC motor me kya antar h
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