Tata Cummins Maintenance Supervisor Interview Questions and Answers

Q1. Which bearing used in CNC spindle? And why ?
Ans. 
Angular contact ball bearings are commonly used in CNC spindles due to their ability to handle both radial and axial loads.
• Angular contact ball bearings are used in CNC spindles because they can handle both radial and axial loads efficiently.

• These bearings provide high rigidity and accuracy, which are crucial for CNC machining operations.

• The contact angle of angular contact ball bearings can be adjusted to optimize per...read more
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Q2. What is Backlash?and how to check it ?
Ans. 
Backlash is the amount of clearance or play between two mating components in a mechanical system.
• Backlash is commonly found in gear systems, where it can affect the accuracy and efficiency of the system.

• To check backlash, one can use a dial indicator to measure the amount of movement between the components when they change direction.

• Backlash can be adjusted by tightening or loosening the components to reduce the cleara...read more
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Q3. How many types of Hydraulic valve are there ? Diffenciate between pressure relief and pressure reducing valve.
Ans. 
There are various types of hydraulic valves, including pressure relief and pressure reducing valves.
• Types of hydraulic valves include directional control valves, flow control valves, pressure control valves, and check valves.

• Pressure relief valves are designed to limit the pressure within a hydraulic system by diverting excess fluid when the pressure reaches a certain level.

• Pressure reducing valves, on the other hand, ...read more
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Q1. What is the unit of resistance ?
Ans. 
The unit of resistance is Ohm (Ω).
• The unit of resistance is denoted by the symbol Ω (Ohm)

• Resistance is measured in Ohms

• Named after German physicist Georg Simon Ohm

• Commonly used in electrical circuits
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Q2. Define the ohm law
Ans. 
Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage across it and inversely proportional to the resistance.
• Ohm's Law is represented by the formula V = IR, where V is voltage, I is current, and R is resistance.

• It helps in calculating the relationship between voltage, current, and resistance in an electrical circuit.

• It is named after the German physicist Georg Simon Ohm w
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Our discussion was on how to maintain electrical machines healthy .So we discussed and found many ideas .It was really nice discussion i had

Q1. What you do for making yourself confidential ?
Ans. 
I ensure confidentiality by following company policies, maintaining data security, and keeping sensitive information private.
• Adhering to company policies regarding confidentiality

• Using secure methods for storing and transmitting data

• Avoiding discussing sensitive information with unauthorized individuals
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Q2. Whats your strengths ?
Ans. 
My strengths include strong problem-solving skills, attention to detail, and ability to work well under pressure.
• Strong problem-solving skills

• Attention to detail

• Ability to work well under pressure
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Q1. What is voltage define it?
Ans. 
Voltage is the difference in electric potential between two points in a circuit, measured in volts.
• Voltage is the force that pushes electric current through a circuit

• It is measured in volts (V)

• Voltage is the potential difference between two points in a circuit

• Higher voltage means more energy available to move electrons

• Voltage can be DC (direct current) or AC (alternating current)
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Q1. Electrical machine
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Q2. Electrical and mechanical maintenance
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Q3. Hydraulic maintenance
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Q4. Power press machine
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Q5. Ultra Sonic machine
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Q6. Diesel generator set
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Q7. Air compressor maintenance
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Q8. Eot cranes maintenance
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Q9. Surface grinder machine
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Q10. Auto stack welding machine
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Q11. Slitting machine
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Q12. Roter diecast machine
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Q13. Furnace machine maintenance
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Q1. About to hpdc m/c
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Q2. About to safety and maintenance
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Q3. About to electrical device as like star ,delta connection and plc
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Q1. Discuss the salary
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Technical questions ,basic English grammar and aptitude question.

Q1. Shelf introduction Example your project. Technical questions
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Q1. Draw a circuit diagram to convert 230v ac to 24v dc.
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Q2. PLC Ladder logic Diagram
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Q1. 1.Sero moters ko kitni access rahte hai ?
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Q2. Resistance kaise kont hota hai
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