India Nippon Electricals Electrical Project Engineer Interview Questions and Answers

Q1. What is the teransform
Ans. 
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Transformers are commonly used to step up or step down voltage levels in electrical systems.

• They consist of two coils of wire, known as the primary and secondary coils, wrapped around a core.

• The primary coil is connected to the input voltage source, while the secondary coil is connected to the outpu...read more
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Q2. What is the current
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Q3. What is the voltage
Ans. 
Voltage is the difference in electric potential between two points.
• Voltage is measured in volts (V).

• It represents the potential energy per unit charge.

• Voltage is the driving force that pushes electric current through a circuit.
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Q4. What is the ohm's low
Ans. 
Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the conductor.
• Ohm's Law is represented by the formula V = IR, where V is the voltage, I is the current, and R is the resistance.

• It helps in calculating the current flowing through a circuit when the voltage and resistance are known, or determining the r...read more
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Q1. Dept oriented questions
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Q2. Genral , plc , utility , CNC Type questions
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Self Introduction and communication English

Q1. Transformer breaker related questions, AC/DC Motors starters, Hardware circuits and PLC logics relay consupt , injuction moulding related questions
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Q1. Intro yourself Qualifications Work detail
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Q1. What is a synchronisation panel for DG?
Ans. 
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. Education and experience above
Ans. Iti and 5 years exp etc.....
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Q1. What is the transformer
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Q2. What is ac supply and dc supply and what the difference
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Q3. What is the ac and dc motor
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Q4. What do you min by induction motor and asynchronous motor
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Q1. Where are you from
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Q2. How many member in your family
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