Hpcl Mumbai Refinery Interview Questions and Answers

Commissioning is the process of ensuring that a system, equipment, or facility is installed, tested, and operated according to its design and intended function.

• Commissioning involves a series of activities to verify and validate the performance of a system or equipment.

• It includes activities such as installation, inspection, testing, and functional checks.

• Commissioning ensures that all components of a system are workin...read more

Commissioning activities involve testing, inspecting, and verifying the functionality of equipment and systems before they are put into operation.

• Testing and calibrating equipment

• Inspecting and verifying system components

• Performing functional tests

• Troubleshooting and resolving issues

• Documenting and reporting findings

• Training operators on equipment operation

• Ensuring compliance with safety regulations

Pump startup involves a series of steps to ensure proper functioning and performance.

• Inspect the pump and surrounding area for any damage or leaks.

• Check the pump's power supply and ensure it is properly connected.

• Open the pump's suction and discharge valves.

• Prime the pump by filling it with the fluid it will be pumping.

• Start the pump motor and gradually increase the speed.

• Monitor the pump's performance and adjust as ne...read more

Shoot blowers are used in furnaces to remove ash and other debris from the combustion chamber.

• Shoot blowers help maintain the efficiency of the furnace by preventing the build-up of ash and other deposits.

• They improve the combustion process by ensuring proper air and fuel flow.

• Shoot blowers can also help in reducing emissions by removing particulate matter from the combustion chamber.

• Examples of shoot blowers include s...read more

An ejector works on the principle of converting pressure energy into velocity energy to create a vacuum.

• An ejector consists of a motive fluid nozzle, a suction chamber, and a diffuser.

• The motive fluid, usually a high-pressure gas or liquid, is forced through the nozzle, creating a high-velocity jet.

• This high-velocity jet entrains and mixes with the suction fluid, which could be a gas or liquid at a lower pressure.

• The m...read more

Absorption is the process by which one substance is taken in or incorporated into another.

• Absorption occurs when a substance is absorbed or soaked up by another substance.

• It is a common process in various fields such as chemistry, biology, and physics.

• In chemistry, absorption refers to the process of a substance being dissolved or taken up by another substance.

• In biology, absorption refers to the process by which nutri...read more