Hyundai Mobis Maintenance Trainee 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. 1.type and diffrance of encoders 2.MTBF&MTTR 3.Communication protocol plc
Ans. 
Encoders can be incremental or absolute, MTBF is Mean Time Between Failures, MTTR is Mean Time To Repair, common communication protocols for PLCs include Modbus and Profibus.
• Encoders can be incremental (provide relative position) or absolute (provide exact position)

• MTBF is the average time between failures of a system or component

• MTTR is the average time it takes to repair a failed system or component

• Common communicati...read more
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Q2. 4.Servo drive 5.vfd drive
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Plc programming test

Q1. Fresher student for every field
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Q1. Fresher student for every field
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Q1. A few knowledge of ac and DC machine
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Q1. Related to work and kpi
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Q2. Why want to leave
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Q3. Machine related conditional questions
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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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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. As per your resume and experience
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Q2. Tyre industries Prosses and its related
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Q3. Basic knowledge of plc and scads system
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