HBL Power Systems Service Engineer Interview Questions and Answers

Q1. Only Transformer based Questions
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Q2. Transformers Testing, Maintenance
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Q1. Basic question related to electrical and related to what they are manufacturing
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Q2. What is transformer and there working principle?
Ans. 
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Consists of two coils of wire, known as primary and secondary coils

• Primary coil is connected to a source of alternating current

• Alternating current in primary coil creates a changing magnetic field

• This changing magnetic field induces a voltage in the secondary coil

• Voltage in secondary coil can be hig...read more
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Q3. Safety devices in transformer?
Ans. 
Safety devices in transformers include pressure relief devices, Buchholz relay, and temperature sensors.
• Pressure relief devices are used to release excess pressure in the transformer to prevent explosions.

• Buchholz relay is a gas and oil operated relay that detects internal faults in the transformer.

• Temperature sensors are used to monitor the temperature of the transformer and prevent overheating.
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Q4. Controlling devices in the transformer and there working and why we are using?
Ans. 
Controlling devices in transformers are used to regulate voltage, protect against overloads, and ensure efficient operation.
• Controlling devices such as tap changers are used to adjust the voltage ratio of the transformer to maintain a constant output voltage.

• Protective devices like relays are used to detect and isolate faults such as overloads, short circuits, and overvoltage conditions.

• Monitoring devices like temperat...read more
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Q5. What are delta connection and star connection why we use and when and where we use ?
Ans. 
Delta connection and star connection are two types of connections used in electrical circuits. Delta connection is used for three-phase systems, while star connection is used for single-phase systems.
• Delta connection is used in three-phase systems where the load is balanced and the power requirement is high.

• Star connection is used in single-phase systems where the load is unbalanced and the power requirement is low.

• Del...read more
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Good behaviour bigh mind smart work

Q1. Home appliances
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Q2. What is the growth of company
Ans. 
Our company has experienced steady growth over the past few years.
• We have expanded our product line to include new offerings.

• We have opened several new locations in key markets.

• Our revenue has increased year over year.

• We have invested in new technology to improve efficiency and customer experience.
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Q3. What is smart work for employee
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Q4. Costmer irritated
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Q5. Company features growth
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Q6. What is your goal
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Q7. Best employee for sales
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Q1. Only Transformer based Questions
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Q2. Transformers Testing, Maintenance
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Q1. How many years experience in job do you have
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Q2. What's your job profile skills..
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Q1. Home appliances domastic product is repaired by you
Ans. 
Yes, I have experience repairing home appliances like refrigerators, washing machines, and ovens.
• Experience repairing a variety of home appliances

• Knowledge of common issues and troubleshooting techniques

• Ability to work with different brands and models

• Skills in diagnosing and fixing electrical and mechanical problems
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Q2. Do you have a good skills in fan repairing
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Q1. Not disclosed the details with other
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Q2. Not discussed with other
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Q1. One to one interview with VP and concern area person.
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