Ongc Petro Additions Field Operation Engineer Interview Questions and Answers

Q1. Plant process safety related
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Q1. Family background
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Coding decoding , Hight and distance, problems of train , Average etc

Q1. Fluid mechanics, Heat & mass transfer questions etc
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Q1. Family & professional qualification etc
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Q1. Positive Isolation
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Q2. Turbine Rolling Black out condition
Ans. 
Turbine rolling black out condition refers to a situation where a turbine experiences a sudden loss of power and stops rotating.
• Turbine rolling black out condition can occur due to various reasons such as mechanical failures, electrical faults, or grid disturbances.

• Examples of causes include turbine blade damage, generator malfunction, or grid overload.

• Proper maintenance and monitoring of the turbine system can help pr...read more
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Q3. Delta T Generator winding temperature
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Delta T refers to the temperature difference between the generator winding and its surroundings.
• Delta T is an important factor in determining the health and efficiency of a generator.

• Monitoring the generator winding temperature helps prevent overheating and potential damage.

• Maintaining a proper Delta T ensures optimal performance and longevity of the generator.

• For example, if the generator winding temperature is 80°C a...read more
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Q4. Bearing vibration
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Q5. Condenser types
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Q6. Vaccum drop reason
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Vacuum drop can be caused by leaks in the system, clogged filters, or a malfunctioning vacuum pump.
• Leaks in the system can cause a drop in vacuum pressure.

• Clogged filters can restrict airflow and lead to a decrease in vacuum levels.

• A malfunctioning vacuum pump may not be able to maintain the desired vacuum pressure.

• Check for leaks by using a leak detector or soapy water.

• Inspect and clean filters regularly to prevent cl...read more
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Q7. CT fan & gear box ratio
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Q1. Heat transfer., operation related
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Q2. Field related, Compressors, Pumps, valves
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Q1. Any question ask me pls select your question
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Q1. Pls selection any question me
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Q1. Easy questions from fluid mechanics and HTO MTO
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General reasoning test and maths question from 10.

This was skipped due to low people passed the previous round

Q1. General question from your course
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Q1. Size column, Standard height of buildings and current experience question
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Q2. What we will do if void present in the structure
Ans. 
The void in a structure needs to be identified and filled with appropriate materials to ensure structural integrity.
• Identify the location and size of the void

• Determine the cause of the void

• Select appropriate materials to fill the void

• Ensure proper compaction and curing of the materials

• Perform necessary testing to ensure structural integrity
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Q3. What is canopy and why it provides.
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Canopy is the uppermost layer of vegetation in a forest or ecosystem that provides various benefits.
• Canopy refers to the highest layer of vegetation in a forest or ecosystem.

• It consists of the tops of trees and other tall plants that form a continuous cover.

• The canopy provides several important functions:

• - It provides shade and shelter for plants and animals living beneath it.

• - It helps regulate temperature and humidit...read more
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