Lumax Industries Electrical Maintenance Engineer Interview Questions and Answers

Simple maths questions which were the simple formula based.

Q1. Just introduction and 1 -2 technical questions
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Q2. Tell me about yourself What is motor & generator
Ans. 
Motors and generators are electrical machines that convert electrical energy into mechanical energy and vice versa.
• A motor is a device that converts electrical energy into mechanical energy to produce motion. It works on the principle of electromagnetic induction.

• A generator is a device that converts mechanical energy into electrical energy. It works on the principle of Faraday's law of electromagnetic induction.

• Motors...read more
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Q1. What is a synchronisation panel for DG?
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A synchronisation panel for DG is used to synchronize multiple generators to ensure they are running in parallel and sharing the load evenly.
• Synchronisation panels are used in situations where multiple diesel generators need to be connected in parallel to supply power to a common bus.

• The panel monitors the frequency, voltage, and phase angle of each generator and ensures they are synchronized before connecting them to ...read more
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Q2. What is Pulse width in laser ?
Ans. 
Pulse width in laser refers to the duration of time that a laser beam is emitted.
• Pulse width is measured in seconds or milliseconds.

• It determines the amount of energy delivered by the laser beam.

• Shorter pulse widths are often used for precision cutting or welding.

• Longer pulse widths are used for applications like material processing or drilling.
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Q3. What is BDV of Transformer oil?
Ans. 
BDV stands for Breakdown Voltage. It is a measure of the dielectric strength of transformer oil.
• BDV is the voltage at which the insulation between two conductors breaks down.

• It is an important parameter to determine the quality of transformer oil.

• BDV is usually measured in kilovolts (kV).

• Higher BDV indicates better quality and higher dielectric strength of the oil.
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Q4. How RTCC panel works?
Ans. 
RTCC panel stands for Remote Tap Changing Control panel, used in power transformers to automatically adjust the voltage ratio.
• RTCC panel monitors the load and voltage levels of the transformer.

• It automatically adjusts the tap changer to maintain the desired voltage ratio.

• RTCC panel can be programmed to operate based on specific parameters like load current, temperature, etc.

• It helps in optimizing the transformer perfor...read more
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Q1. About background , why you leave from previous company, why you want to join our company.
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Q1. PLC
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Q1. Acb ,vcb vfd , chiller , ahu ,dudtcollector,
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Q2. Electrical equipment
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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. Connected with the practical use of machines, methods, etc. in science and industry तकनीकी (विज्ञान और उद्योग के क्षेत्र में मशीनों, कार्यविधियों आदि के व्‍यावहारिक उपयोग से संबंधित)
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कार्यभार, नियत कार्य, नियुक्ति
The reporter disappeared while on (an) assignment in the war zone.