20+ Optum Global Solutions Interview Questions and Answers

Distillation is a process used to separate mixtures based on differences in boiling points.

• Distillation is a widely used technique in chemical engineering.

• There are two main types of distillation: batch distillation and continuous distillation.

• Batch distillation involves separating a mixture into its components in a series of steps.

• Continuous distillation involves continuously feeding a mixture into a distillation column and separating it into its components.

• Other types of di...read more

There are two types of distillation columns: batch and continuous.

• Batch distillation columns are used for small-scale production and have a single feed inlet and outlet.

• Continuous distillation columns are used for large-scale production and have multiple feed inlets and outlets.

• Examples of continuous distillation columns include packed columns and tray columns.

• Packed columns use packing material to increase surface area for separation, while tray columns use trays to separate...read more

Sulphuric acid has an atomic number of 16.

• Sulphuric acid is a strong mineral acid with the chemical formula H2SO4.

• The atomic number of sulphur is 16, which is the number of protons in the nucleus of a sulfur atom.

• Therefore, the atomic number of sulphuric acid is also 16.

A distillation column is a vertical vessel used to separate components of a liquid mixture based on their boiling points.

• Consists of trays or packing material to increase surface area for vapor-liquid contact

• Operates by heating the mixture to create vapor, which rises through the column

• Different components condense at different heights and are collected separately

• Commonly used in industries such as oil refining and chemical processing

Distillation is a process used to separate components of a liquid mixture based on their boiling points.

• Distillation involves heating the mixture to vaporize the more volatile components, then condensing the vapor back into liquid form.

• Types of distillation include simple distillation, fractional distillation, and steam distillation.

• Simple distillation is used to separate components with significantly different boiling points, while fractional distillation is used for closer ...read more

Acetone's chemical formula is C3H6O.

• Acetone is a colorless, volatile liquid with a sweet smell.

• It is commonly used as a solvent and in nail polish remover.

• Its chemical formula is C3H6O, which means it has three carbon atoms, six hydrogen atoms, and one oxygen atom.

• Acetone is also produced naturally in the human body as a byproduct of metabolism.

Reflux ratio is the ratio of the amount of liquid refluxed to the amount of liquid that is being distilled.

• It is an important parameter in distillation processes.

• It is used to optimize the separation of components in a mixture.

• A higher reflux ratio leads to a higher purity of the distillate.

• Reflux ratio can be calculated using the equation R = L/D, where R is the reflux ratio, L is the amount of liquid refluxed, and D is the amount of liquid that is being distilled.

Distillation is a process of separating components of a mixture based on their boiling points. Different types of valves are used in distillation process.

• Distillation is a process of separating components of a mixture based on their boiling points

• Types of valves used in distillation process include gate valves, globe valves, ball valves, and needle valves

• Gate valves are used for on/off control, globe valves for regulating flow, ball valves for quick shut-off, and needle valve...read more

Dv acid chloride is a chemical compound used in the production of various materials such as polymers and pharmaceuticals.

• Dv acid chloride is a type of acid chloride used in organic synthesis.

• It is commonly used in the production of polymers and pharmaceuticals.

• Dv acid chloride is known for its reactivity and ability to form bonds with other compounds.

• Examples of products made using Dv acid chloride include nylon and certain types of drugs.

Yes, plant commissioning involves the process of testing and starting up a new industrial plant to ensure it operates correctly.

• Plant commissioning is the process of ensuring all systems and components of a new industrial plant are tested, inspected, and ready for operation.

• It involves checking equipment functionality, safety measures, and operational procedures.

• Commissioning also includes performance testing to verify that the plant meets design specifications.

• Examples of pl...read more

pH is a measure of the acidity or alkalinity of a solution on a scale of 0 to 14.

• pH stands for 'potential of Hydrogen'

• It is a logarithmic scale, with lower values indicating acidity, higher values indicating alkalinity, and 7 being neutral

• Common examples: lemon juice (pH 2), water (pH 7), baking soda (pH 9)

Yes, I have knowledge about distillation and its principles.

• I am familiar with the process of separating components of a liquid mixture based on differences in boiling points.

• I understand the setup and operation of distillation equipment such as distillation columns and condensers.

• I am aware of different types of distillation techniques like simple distillation, fractional distillation, and steam distillation.

Modes of heat transfer include conduction, convection, and radiation. Valves types include gate, globe, ball, and butterfly. Distillation is a separation process. Azeotropic distillation is a special type of distillation. P&ID diagrams show process flow. Fourier's law relates to heat transfer. Material balance ensures conservation of mass. Boiling point of methanol is 64.7°C. Boiling point of crude oil products varies. Process control involves monitoring and adjusting process...read more

Organic compounds are composed of carbon atoms bonded together in various arrangements, with different functional groups determining their properties.

• Organic compounds contain carbon atoms bonded together in various structures

• Functional groups such as alcohols, aldehydes, ketones, and carboxylic acids determine the properties of organic compounds

• Mechanisms in organic chemistry involve the breaking and forming of chemical bonds to create new compounds

• Examples include the mecha...read more

Main parts of HPLC include pump, injector, column, detector, and data system.

• Pump - used to deliver the mobile phase at a constant flow rate

• Injector - introduces the sample into the column

• Column - where the separation of compounds occurs

• Detector - detects the separated compounds as they elute from the column

• Data system - records and analyzes the detector output

The product process involves designing, prototyping, testing, manufacturing, and quality control.

• The design phase involves creating a blueprint of the product.

• Prototyping involves creating a working model of the product.

• Testing involves evaluating the product's performance and identifying any issues.

• Manufacturing involves producing the product on a large scale.

• Quality control involves ensuring that the product meets the required standards.

• The process may involve iterations an...read more

Chlorination reagents are chemicals used to introduce chlorine atoms into organic compounds.

• Chlorine gas (Cl2) is a common chlorination reagent used in organic synthesis

• N-chlorosuccinimide (NCS) is another popular chlorination reagent

• Thionyl chloride (SOCl2) is used for chlorination of alcohols to form alkyl chlorides

Reactor is a device used for initiating and controlling a nuclear chain reaction. HVAC stands for Heating, Ventilation, and Air Conditioning.

• Reactor is used in nuclear power plants to generate electricity.

• HVAC is used to regulate temperature, humidity, and air quality in buildings.

• Maintenance engineers are responsible for ensuring the proper functioning of both reactors and HVAC systems.

• Examples of HVAC equipment include air conditioners, heaters, and ventilation fans.

Distillation is a process of separating components in a liquid mixture based on their boiling points. Types include simple, fractional, and steam distillation.

• Distillation is a separation process used to purify liquids by heating and cooling them to separate components based on their boiling points.

• Simple distillation is used for separating components with a large difference in boiling points, while fractional distillation is used for components with closer boiling points.

• Ste...read more

Boilers generate steam by heating water using fuel or electricity.

• Water is heated in a closed vessel called a boiler

• Heat is transferred to the water by burning fuel or using electricity

• The steam generated is used for various purposes such as power generation, heating, and industrial processes

Distillation is a process used to separate components of a liquid mixture based on their different boiling points.

• Distillation involves heating a liquid mixture to create vapor, then cooling the vapor to condense it back into liquid form.

• The components with lower boiling points will vaporize first and be collected, leaving behind components with higher boiling points.

• Examples of distillation include the separation of alcohol from water in the production of spirits, and the pu...read more

Distillation is a process of separating components of a mixture based on their boiling points. There are several types of distillation.

• Simple distillation

• Fractional distillation

• Vacuum distillation

• Steam distillation

• Azeotropic distillation

An ejector system is a device that uses a high-velocity fluid to draw in and mix with a secondary fluid or gas.

• Ejector systems work based on the Venturi effect, where a high-velocity fluid stream creates a low-pressure zone that draws in the secondary fluid or gas.

• They are commonly used in applications such as steam turbines, refrigeration systems, and vacuum systems.

• Ejector systems are efficient and reliable, with low maintenance requirements.

• They can be designed for specifi...read more