Hindustan Urvarak & Rasayan Production Engineer Interview Questions and Answers for Experienced

Relative volatility is a measure of how easily a component in a mixture can be separated from other components through distillation.

• Relative volatility is calculated as the ratio of the vapor pressures of the two components being separated.

• It is used in distillation processes to determine the efficiency of separation.

• Higher relative volatility indicates easier separation of components.

• For example, in the separation of ...read more

Distillation is a process of separating components of a liquid mixture based on differences in boiling points.

• Distillation involves heating the 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, while the components with higher boiling points will remain in liquid form.

• Examples of distillation include...read more

Absorber column absorbs a gas into a liquid, while a stripper column removes a component from a liquid.

• Absorber column is used to absorb a gas into a liquid, while a stripper column is used to remove a component from a liquid.

• Absorber column operates at a higher pressure than the stripper column.

• Absorber column is used in processes like gas sweetening, while stripper column is used in processes like solvent recovery.

• Ex...read more

Designing a heat exchanger involves determining heat transfer requirements, selecting appropriate materials, and optimizing the design for efficiency.

• Determine heat transfer requirements based on the fluids involved, flow rates, and temperature differentials.

• Select appropriate materials based on the compatibility with the fluids, operating temperatures, and pressure requirements.

• Optimize the design for efficiency by co...read more

Enthalpy is a thermodynamic property that represents the total energy of a system, including internal energy and the amount of energy required to create or release the system.

• Enthalpy is denoted by the symbol H and is expressed in units of energy (such as Joules or calories).

• It is defined as H = U + PV, where U is the internal energy of the system, P is the pressure, and V is the volume.

• Enthalpy change (ΔH) is commonly...read more