Noida Power Company Executive Engineer Interview Questions and Answers

This has two papers one technical and one non technical
Technical has only two subjects machines and power systems 100 ques 1 hour.
Non technical exam has 50 ques 1/2hour.

Q1. Share details of your previous job.
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Q2. Why should we hire you?
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Q3. What are your strengths and weaknesses?
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Q4. Tell me about yourself.
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Q1. Star delta connection Distribution transformer Colorcoding of conductor Earthing vs grounding Ques on machine efficiency and stability.
Ans. 
Questions related to electrical engineering concepts such as star delta connection, distribution transformer, color coding of conductor, earthing vs grounding, machine efficiency and stability.
• Star delta connection is a method of starting three-phase induction motors.

• Distribution transformer is used to step down high voltage to low voltage for distribution purposes.

• Color coding of conductor is used to identify the func...read more
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Q1. Electrical distribution
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Q1. HR related questions
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Q1. Capability curve of Generator
Ans. 
Capability curve of a generator shows the relationship between the electrical output and mechanical input of the generator.
• The capability curve is a graph that shows the maximum electrical output a generator can produce at different mechanical input levels.

• It helps in determining the operating limits of the generator and ensures it is not overloaded.

• The curve typically shows the maximum power output, rated power output...read more
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Q2. All Protection of Generator
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All protection of a generator is essential to ensure its safe and efficient operation.
• Overcurrent protection to prevent damage from excessive current flow

• Overvoltage protection to safeguard against voltage spikes

• Underfrequency protection to prevent damage during frequency deviations

• Reverse power protection to prevent generator from acting as a motor

• Earth fault protection to detect ground faults and protect equipment

• Tem...read more
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Q3. Transformers testing
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Q1. What is the 164 notification
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The 164 notification is a notification sent by a system to alert users of a specific event or action.
• The 164 notification typically includes important information or updates that users need to be aware of.

• It can be triggered by various events such as system errors, completed tasks, or new messages.

• Users may receive the 164 notification through email, text message, or within the system itself.
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Q2. What is the use of winch machine
Ans. 
A winch machine is used for lifting or pulling heavy objects using a motor-driven cable or rope.
• Used in construction for lifting heavy materials

• Commonly used in off-road vehicles for recovery purposes

• Found on boats for raising and lowering anchors

• Can be used in forestry for dragging logs
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Q1. Question will be based on your past experiences and profile you applied for.
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Q1. Salary discussion, if you get selected.
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Q1. Self introduction. Previous company post and working details. Power transformers testing. Power transformers protection. Single line diagram. Transformer oil BDV test process. Team management.
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Q2. Self introduction
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Q3. Previous company post and working
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Q4. Power transformers testing
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Q5. Power transformers protection
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