Hindalco Industries Electrical Maintenance Supervisor Interview Questions and Answers

Q1. Dol and star delta wiring scheme
Ans. 
DOL (Direct-On-Line) and star delta are two different wiring schemes used in electrical engineering for starting induction motors.
• DOL wiring directly connects the motor to the power supply for starting, while star delta wiring initially starts the motor in star configuration and then switches to delta configuration for running.

• DOL wiring is simpler and cheaper but causes high starting current, while star delta wiring r...read more
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Q1. What is different parameters in Siemens controller
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Siemens controllers have different parameters for various applications.
• Siemens controllers have different parameters for motion control, temperature control, and process control.

• Parameters for motion control include acceleration, deceleration, and maximum velocity.

• Parameters for temperature control include setpoint, proportional band, and integral time.

• Parameters for process control include setpoint, deadband, and gain...read more
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Q2. What is different parameter in fanuk
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Fanuc has different parameters for various functions such as motion control, spindle control, and tool management.
• Fanuc parameters are used to control various functions such as motion control, spindle control, and tool management.

• Parameters can be set to adjust the speed, acceleration, and deceleration of the machine.

• Fanuc parameters can also be used to set up alarms and diagnostic messages.

• Examples of Fanuc parameters...read more
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Q3. What types of controller in our company
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Q4. Which type of use plc
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PLCs are used in various industries for automation and control purposes.
• PLCs are commonly used in manufacturing industries for controlling assembly lines and machines.

• They are also used in the automotive industry for controlling robotic arms and conveyor belts.

• PLCs are used in the food and beverage industry for controlling mixing and packaging machines.

• They are used in the energy sector for controlling power plants and...read more
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Q5. Which type of use vfd
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VFDs are used to control the speed of AC motors in various applications.
• VFDs are commonly used in HVAC systems to control the speed of fans and pumps.

• They are also used in industrial applications to control conveyor belts and other machinery.

• VFDs can improve energy efficiency and reduce wear and tear on equipment.

• They are often used in renewable energy systems to control the speed of wind turbines and solar panels.

• VFDs...read more
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Q6. Which type of machine
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Q1. Working process and maintenance &troubleshooting
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Q1. I have experience many types of pump maintenance
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Q2. H.p heter l. P heter turbine pump all type maintenance
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Q1. I am working from Grid sub station . Transformer... CT PT CVT EARTHING PTW
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Q2. All about 132 kv Gss
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Q1. All questions macnical and answers or eltercal
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Q2. All questions macnical and answers or eltercal
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Q1. What is maintenance, preventive maintenance, break down maintenance
Ans. 
Maintenance is the process of keeping equipment in good condition. Preventive maintenance is scheduled maintenance to prevent breakdowns. Breakdown maintenance is repairing equipment after it has failed.
• Maintenance is the process of ensuring that equipment is in good working condition.

• Preventive maintenance is scheduled maintenance that is performed to prevent equipment breakdowns.

• Breakdown maintenance is the repair of...read more
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HR after call back from company Side

Q1. Gear box requirements
Ans. 
Gear box requirements depend on the equipment being used and the load it carries.
• Gear box should be able to handle the torque and power requirements of the equipment.

• The gear ratio should be appropriate for the application.

• The gear box should be properly lubricated and maintained.

• The gear box should be designed to handle the operating conditions, such as temperature and environment.

• Examples of gear box requirements inc...read more
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