Hindalco Industries Maintenance Engineer Interview Questions and Answers

Math, reasoning ,Quant, technical, behaviour

Situational Group discussion

Aptitude test b.e electronics level

Q1. Why Motor winding failure
Ans. 
Motor winding failure can occur due to various reasons such as overheating, overloading, insulation breakdown, and moisture ingress.
• Overheating of the motor can cause the insulation to deteriorate and lead to winding failure.

• Overloading the motor beyond its capacity can cause excessive stress on the windings, leading to failure.

• Insulation breakdown due to age, wear and tear, or poor maintenance can result in short circ...read more
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Q2. Difference between vfd and servo
Ans. 
VFD controls the speed of an AC motor by varying the frequency of the electrical supply, while servo motors use feedback to control position, velocity, and torque.
• VFD stands for Variable Frequency Drive, used to control the speed of AC motors by varying the frequency of the electrical supply.

• Servo motors use feedback to control position, velocity, and torque, providing precise motion control.

• VFDs are commonly used in a...read more
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Q3. Roles and responsibilities
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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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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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Q1. Basic interview questions regarding plc
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Q2. Basic interview question regarding motors
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