Tata Steel Maintenance Manager Interview Questions and Answers

Q1. Details about forging press.
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Q2. Critical spare parts knowledge
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Q3. Tpm process including 5s no
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Gear box replacement work

Q1. Discharge chute replacement work and safety first and paper work and walked away clean and fresh and try out and bolt nut open and old discharge chute remove and new discharge chute replace and bolt nut ti...read more
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Q2. Barring checking and replacement work and safety first and paper work and walked away clean and fresh and try out and blumber block top cover open and old slue barring remove and new slue barring fix and n...read more
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Q3. Motor replacement work and safety first and paper work and walked away clean and fresh and try out and bolt nut open and old motor remove and new motor replace and bolt nut tightening sure and dayal guage ...read more
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Q4. Gear box replacement work and safety first and paper work and walked away clean and fresh and try out and bolt nut open and old gear box remove and new gear box replace and bolt nut tightening sure and day...read more
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Q5. V-scraper replacement work and safety first and paper work and walked away clean and fresh and try out and bolt nut open and old v-scraper remove and new v-scraper replace and bolt nut tightening sure and ...read more
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Q1. What is your qualification?
Ans. 
Bachelor's degree in Mechanical Engineering with 5 years of experience in maintenance and troubleshooting of mechanical systems.
• Bachelor's degree in Mechanical Engineering

• 5 years of experience in maintenance and troubleshooting

• Proficient in analyzing mechanical systems and implementing solutions
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Q2. Are you willing to work 12 hours?
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Yes, I am willing to work 12 hours as needed for the job.
• I am committed to meeting the demands of the job, including working long hours when necessary.

• I understand the importance of completing tasks on time and am willing to put in the extra hours to ensure that.

• I have previous experience working long shifts and am comfortable with the schedule.

• I am dedicated to my work and will prioritize the job requirements over per
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Q1. What is relay what do work
Ans. 
A relay is an electrical device that acts as a switch to control the flow of current in an electrical circuit.
• Relays are used to control high-power devices with low-power signals.

• They consist of an electromagnet and a set of contacts.

• When the electromagnet is energized, it creates a magnetic field that attracts or releases the contacts, allowing or interrupting the flow of current.

• Relays are commonly used in industrial...read more
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Q2. What is reverse forward draw the control wirring
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Reverse forward draw is a control wiring method used in electrical systems to control the direction of rotation of a motor.
• Reverse forward draw is used to control the direction of rotation of a motor.

• It involves the use of a forward contactor and a reverse contactor.

• The control wiring includes connections between the contactors, motor, and power supply.

• By energizing the forward contactor, the motor rotates in one direc...read more
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Q3. What is ac motor
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An AC motor is a type of electric motor that operates on alternating current.
• AC motor stands for Alternating Current motor.

• It converts electrical energy into mechanical energy.

• AC motors are commonly used in household appliances, industrial machinery, and vehicles.

• They are more efficient and require less maintenance compared to DC motors.

• Examples of AC motors include induction motors, synchronous motors, and brushless m
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Q4. What is different between ac and dc motor
Ans. 
AC motors and DC motors differ in their power source, construction, speed control, and applications.
• AC motors run on alternating current, while DC motors run on direct current.

• AC motors are more commonly used in household appliances, industrial machinery, and electric vehicles.

• DC motors are often found in battery-powered devices, such as laptops, electric cars, and robots.

• AC motors have a simpler construction with fewe...read more
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Q5. What is. MCB
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MCB stands for Miniature Circuit Breaker.
• MCB is an electrical switch that automatically interrupts the flow of current in an electrical circuit during an overload or short circuit.

• It is a type of circuit breaker that is commonly used in residential and commercial buildings.

• MCBs are designed to protect electrical circuits and appliances from damage caused by excessive current.

• They are compact in size and can be easily i...read more
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Q6. What is timer what do work
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A timer is a device that measures and controls the passage of time.
• A timer is used to initiate or stop a process at a specific time or after a specific duration.

• Timers can be mechanical or electronic.

• They are commonly used in various applications such as appliances, industrial machinery, and automation systems.

• Examples of timers include kitchen timers, programmable thermostats, and countdown timers in sports events.
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Q7. What is VFD
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VFD stands for Variable Frequency Drive.
• VFD is an electronic device used to control the speed and torque of an electric motor.

• It adjusts the frequency and voltage supplied to the motor, allowing for precise control of motor speed.

• VFDs are commonly used in industrial applications to save energy, improve motor performance, and enable soft starting and stopping.

• They are also known as AC drives, adjustable speed drives, or...read more
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Q8. What is PLC what do work
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PLC stands for Programmable Logic Controller. It is a digital computer used for automation of electromechanical processes.
• PLC is a specialized computer designed to control industrial processes.

• It uses a programmable memory to store instructions and execute them in a sequential manner.

• PLCs are commonly used in manufacturing plants, power stations, and other industrial settings.

• They can be programmed to control various d...read more
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Q9. What is ac motor
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An AC motor is a type of electric motor that operates on alternating current.
• AC motor stands for alternating current motor.

• It converts electrical energy into mechanical energy.

• AC motors are commonly used in household appliances, industrial machinery, and vehicles.

• They are more efficient and require less maintenance compared to DC motors.

• Examples of AC motors include induction motors, synchronous motors, and brushless m
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Q10. What is rectifier
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A rectifier is an electrical device that converts alternating current (AC) to direct current (DC).
• Rectifiers are commonly used in power supplies to convert AC voltage to DC voltage.

• They are made up of diodes, which allow current to flow in only one direction.

• Rectifiers can be half-wave or full-wave, depending on the number of diodes used.

• Examples of rectifiers include bridge rectifiers, vacuum tube rectifiers, and soli
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Q11. What is. diode
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A diode is an electronic component that allows current to flow in one direction and blocks it in the opposite direction.
• Diodes are commonly used in rectifier circuits to convert AC to DC.

• They have two terminals: an anode (positive) and a cathode (negative).

• When the voltage across a diode is forward-biased, it allows current to flow.

• When the voltage is reverse-biased, it blocks the current.

• Diodes are often used for volt...read more
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Q12. What is plc working
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PLC stands for Programmable Logic Controller. It is a digital computer used for automation of electromechanical processes.
• PLC is used to control and monitor industrial processes.

• It is programmed using ladder logic or other programming languages.

• PLCs are commonly used in manufacturing, power plants, and transportation systems.

• They can be used to control motors, valves, sensors, and other devices.

• PLCs provide real-time m...read more
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Q13. What is timer
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A timer is a device or software that measures and controls the passage of time.
• A timer can be a physical device with buttons and a display, or it can be a software program on a computer or smartphone.

• Timers are commonly used in various applications such as cooking, sports, and industrial processes.

• They can be set to count down from a specific time or count up from zero.

• Some timers have additional features like alarms, ...read more
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Q1. Working principal of pump
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Pumps work by creating a pressure difference to move fluid from one place to another.
• Pumps use mechanical energy to increase the pressure of a fluid and move it through a system

• They can be classified into different types such as centrifugal pumps, positive displacement pumps, etc.

• The working principle involves the conversion of mechanical energy into hydraulic energy

• Examples include water pumps in buildings, fuel pumps
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Q2. What is working principal of cooling tower
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Cooling towers work on the principle of evaporative cooling to remove heat from a process or building.
• Cooling towers use water as a cooling medium to absorb heat from a process or building.

• The hot water is pumped to the top of the tower and distributed over the fill media.

• As the water flows over the fill media, some of it evaporates, taking away heat and cooling the rest of the water.

• The cooled water is then collected ...read more
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Q3. Pollution bag filter specifications
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Pollution bag filter specifications include material type, filtration efficiency, airflow capacity, and pressure drop.
• Material type: Bag filters can be made of various materials such as polyester, polypropylene, or fiberglass.

• Filtration efficiency: This indicates the percentage of particles the filter can capture. Higher efficiency filters are more effective but may have higher pressure drops.

• Airflow capacity: The maxi...read more
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Q4. Softner water parameter
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Q5. What is the formula of centrifugal pump head
Ans. 
The formula for centrifugal pump head is H = (Q * SG) / (3.14 * D^2 * 2.31)
• Head (H) is calculated using the flow rate (Q), specific gravity (SG), and diameter of the impeller (D)

• The formula is derived from the basic equation for head in a centrifugal pump

• Example: H = (100 gpm * 1.0) / (3.14 * 0.5^2 * 2.31) = 45.75 ft
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