Tata Steel Electrical Maintenance Technician Interview Questions and Answers

Q1. Electrical maintenance related
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Q2. Transforamer maintenance
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Q3. Motor maintenance
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Q4. Pcc, mcc, pdb operation and maintenance
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Q5. Field instrument operation and maintenance
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Q1. What is the working principle of an overload relay?
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Q2. How is insulation resistance measured?
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Q1. How to face Electrical safety
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Q2. What is the process for performing preventive maintenance on a motor?
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Q1. What strategies can you use to succeed in an interview?
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Q2. What is the working principle of a star-delta starter?
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Q1. What are undervoltage faults?
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Q2. What are overvoltage faults?
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Q1. What is the purpose of a thermal relay?
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Q2. What is an RDOL starter?
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Q1. What is thermocouple
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Q2. What is rtd
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Q1. How to check the motor
Ans. 
To check the motor, you can perform various tests and inspections to ensure it is functioning properly.
• Check for any physical damage or wear on the motor casing

• Inspect the wiring connections for any loose or damaged wires

• Measure the voltage and current going into the motor to ensure it is within the specified range

• Test the motor's insulation resistance to check for any faults

• Run the motor under load to see if it operat
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Q2. How to do power analysis
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Power analysis involves measuring and analyzing the electrical power consumption of a system or device.
• Identify the components of the system or device that consume power.

• Measure the current and voltage across these components using appropriate instruments.

• Calculate the power consumption using the formula P = VI, where P is power, V is voltage, and I is current.

• Analyze the power consumption data to identify any ineffici...read more
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Q3. What is tranfamer
Ans. 
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Transformers are used to increase or decrease voltage levels in electrical circuits.

• They consist of two coils of wire, known as the primary and secondary coils.

• Examples of transformers include power transformers used in electrical substations and voltage transformers in electronic devices.
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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. All control wireing and power wireing all dcs plc work going on
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Q2. Automation rooling mill division jamshedpur
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Q1. I am electrical engineer working on it and found in the same as par required production okay for me to get the same as the motor is overloaded due to the machine running ok but
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Q2. Automation work
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I am electrical engineer working on it jamshedpur jharkhand steel strips wheel limited jamshedpur jharkhand

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
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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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