10+ Efs Facilities Services Interview Questions and Answers

Unit operation refers to a single step in a chemical process, while unit process involves a series of unit operations.

• Unit operation is a distinct step in a chemical process.

• Unit process is a combination of multiple unit operations.

• Unit operation focuses on a specific physical or chemical change.

• Unit process involves the transformation of raw materials into desired products.

• Examples of unit operations include distillation, filtration, and crystallization.

• Examples of unit proc...read more

There are several types of level transmitters used in various industries.

• Capacitance level transmitters

• Ultrasonic level transmitters

• Radar level transmitters

• Differential pressure level transmitters

• Guided wave radar level transmitters

• Conductivity level transmitters

• Float level transmitters

My process diagram outlines the steps involved in managing a team and ensuring efficient operations.

• The diagram starts with the identification of team goals and objectives.

• It then moves on to the allocation of tasks and responsibilities to team members.

• Regular communication and feedback loops are established to monitor progress and address any issues.

• Performance evaluations and coaching sessions are conducted to support the development of team members.

• The diagram also include...read more

Hydrogenation is a chemical process that involves the addition of hydrogen to a compound, typically an unsaturated hydrocarbon.

• Hydrogenation is commonly used in the food industry to convert liquid vegetable oils into solid fats, such as margarine.

• It is also used in the production of various chemicals, such as hydrogenated oils for use in soaps and detergents.

• The process of hydrogenation can change the physical properties of a substance, such as increasing its melting point or...read more

Distillation is a process of separating components of a liquid mixture based on their different boiling points.

• Distillation involves heating a liquid mixture to vaporize the more volatile components.

• The vapor is then cooled and condensed back into a liquid, resulting in the separation of the components.

• The component with the lower boiling point will vaporize first and be collected separately.

• Distillation is commonly used in industries such as oil refining, chemical production...read more

Reflux ratio is the ratio of the liquid refluxed back to the distillation column to the liquid product withdrawn from the column.

• Reflux ratio is an important parameter in distillation processes.

• It helps in controlling the separation efficiency of the column.

• A higher reflux ratio leads to better separation but requires more energy.

• Reflux ratio can be adjusted to optimize the column performance.

• For example, in a distillation column, if the reflux ratio is too low, the separatio...read more

Centrifugal pumps work by converting rotational energy into kinetic energy to move fluid.

• Centrifugal pumps use an impeller to create centrifugal force, which pushes the fluid towards the pump outlet.

• The impeller spins at high speed, creating a low-pressure area at the center and a high-pressure area at the outer edges.

• Fluid enters the pump through the suction inlet and is accelerated by the impeller, increasing its kinetic energy.

• The kinetic energy is then converted into pres...read more

LooP reactor is a type of reactor used in chemical processes for continuous flow reactions.

• LooP reactor allows for continuous processing of reactions, leading to higher efficiency and productivity.

• It is commonly used in the pharmaceutical and fine chemical industries.

• The design of LooP reactor enables precise control over reaction parameters such as temperature, pressure, and residence time.

I expect a competitive salary that reflects my experience and the responsibilities of the Senior Supervisor role.

• I am looking for a salary that is commensurate with my skills and experience.

• I would like to be compensated fairly for the added responsibilities of the Senior Supervisor position.

• I am open to discussing salary based on the overall compensation package and benefits offered.

• I have researched the market rates for similar positions and would like to be within that ran...read more

A distillation column is a vertical tower used in chemical processes to separate mixtures based on their boiling points.

• Distillation column is used in industries such as oil refining, petrochemicals, and chemical manufacturing.

• It works on the principle of heating a mixture to vaporize the more volatile components and then condensing them back into liquid form.

• The column consists of trays or packing materials that provide a large surface area for contact between the vapor and ...read more

Change of reaction refers to the alteration in response or behavior due to a stimulus or event.

• Change of reaction is a psychological concept that involves a shift in response or behavior.

• It occurs when an individual's reaction to a particular stimulus or event changes over time.

• This change can be influenced by various factors such as experience, learning, or external influences.

• For example, if someone initially reacts with fear to a certain situation but later responds with c...read more

P&I'd stands for Planning and Implementation Document.

• P&I'd is a document that outlines the planning and implementation process for a project or task.

• It includes details such as project objectives, timelines, resources required, and steps to be followed.

• P&I'd helps in ensuring a systematic and organized approach to project management.

• Example: A P&I'd for a software development project would include the project scope, development phases, testing procedures, and deployment plan...read more

DCS stands for Distributed Control System. It is a computerized control system used to monitor and control industrial processes.

• DCS is composed of multiple control units distributed throughout a plant or facility.

• It uses a network to communicate and exchange data between the control units.

• DCS provides centralized control and monitoring of various processes, such as temperature, pressure, flow, and level.

• It allows for real-time monitoring, data logging, and analysis of process...read more

PSV stands for Pressure Safety Valve.

• PSV is a type of valve used to protect equipment from overpressure.

• It automatically opens when the pressure exceeds a set limit, releasing excess pressure.

• PSVs are commonly used in industries such as oil and gas, chemical, and power plants.

• They help prevent equipment damage, explosions, and other safety hazards.

• PSVs are designed to meet specific pressure and flow requirements.

• They are typically installed on vessels, pipelines, and other pr...read more

RTD stands for Resistance Temperature Detector. It is a type of temperature sensor that measures temperature by correlating the resistance of the sensor with temperature.

• RTD is commonly used in industrial applications for accurate temperature measurement.

• It is based on the principle that the electrical resistance of a metal changes with temperature.

• RTDs are known for their high accuracy, stability, and repeatability.

• They are often used in industries such as oil and gas, chemi...read more

Open Loop is a control system where the output has no effect on the input or control action.

• Open Loop is a one-way communication system.

• It does not use feedback to adjust the output.

• The output is predetermined and does not change based on the input.

• Examples include a toaster, where the heating element operates for a fixed time regardless of the toast's actual doneness, or a traffic signal that follows a fixed timing pattern.

Hydrogen gas is a colorless, odorless, and highly flammable gas.

• Hydrogen gas is the lightest and most abundant element in the universe.

• It is commonly used as a fuel in various industries, including transportation and energy production.

• Hydrogen gas can be produced through various methods, such as electrolysis of water or steam reforming of natural gas.

• It is used in the production of ammonia, methanol, and other chemicals.

• Hydrogen gas has potential applications in fuel cells fo...read more