HPCL-Mittal Energy Limited Commissioning Engineer Interview Questions and Answers

Q1. Positive Isolation
Add your answer
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
Answered by AI
Add your answer
Q3. Delta T Generator winding temperature
Ans. 
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
Answered by AI
Add your answer
Q4. Bearing vibration
Add your answer
Q5. Condenser types
Add your answer
Q6. Vaccum drop reason
Ans. 
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
Answered by AI
Add your answer
Q7. CT fan & gear box ratio
Add your answer

Q1. Any question ask me pls select your question
Add your answer

Q1. Pls selection any question me
Add your answer

Q1. Size column, Standard height of buildings and current experience question
Add your answer
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
Answered by AI
Add your answer
Q3. What is canopy and why it provides.
Ans. 
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
Answered by AI
Add your answer

Q1. What is your strength
Add your answer
Q2. What is your capibelty
Add your answer

Q1. Learning from past companies.
Add your answer
Q2. 5 core tools of Quality.
Add your answer
Q3. IATF clauses for NPD.
Add your answer

Engineering reasoning

Q1. Types of chiller, compressor & plastic,
Ans. 
There are different types of chillers, compressors, and plastics used in engineering.
• Types of chillers include absorption, centrifugal, and screw chillers.

• Compressors can be classified as reciprocating, rotary, and centrifugal compressors.

• Plastics used in engineering include polyethylene, polypropylene, and polystyrene.

• Each type of chiller, compressor, and plastic has its own unique properties and applications.
Answered by AI
Add your answer
Q2. Pneumatic & hydraulic, valves & actuators
Add your answer
Q3. Cooling tower, range, approach
Add your answer
Q4. Gear box & its types
Ans. 
Gear box is a mechanical device that transmits power from an engine to the wheels. There are various types of gearboxes.
• Gearboxes are used in automobiles, industrial machinery, and other applications.

• The most common types of gearboxes are manual, automatic, and continuously variable transmissions (CVT).

• Manual gearboxes require the driver to manually shift gears using a clutch and gear stick.

• Automatic gearboxes shift ge...read more
Answered by AI
View 1 more answer