Insecticides India QA QC Engineer Interview Questions and Answers

Different types of reactors include batch reactors, continuous stirred tank reactors, plug flow reactors, and fluidized bed reactors.

• Batch reactors: Used for small-scale production or research purposes.

• Continuous stirred tank reactors: Commonly used in chemical and biochemical industries.

• Plug flow reactors: Ideal for reactions with high conversion rates and minimal side reactions.

• Fluidized bed reactors: Suitable for re...read more

A vacuum is a space devoid of matter. I have used a rotary vane vacuum pump.

• A vacuum is a region with no particles or gas molecules.

• It is created by removing air or other gases from a sealed container.

• Vacuum pumps are used to create and maintain a vacuum.

• I have used a rotary vane vacuum pump, which uses rotating vanes to create a vacuum.

• This type of pump is commonly used in various applications, such as in HVAC systems

I have used the Single-stage ejector system and the Multi-stage ejector system.

• Single-stage ejector system: This system uses a single ejector stage to create a vacuum or low-pressure environment. It is commonly used in applications such as vacuum cleaners and air conditioning systems.

• Multi-stage ejector system: This system uses multiple ejector stages in series to achieve higher levels of vacuum or lower pressures. It ...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

Distillation column and heat exchanger design

• Distillation column design involves determining the number of trays, column diameter, and height

• Heat exchanger design involves selecting the appropriate type of exchanger, sizing the heat transfer area, and determining the heat transfer coefficient

• Factors to consider in both designs include the properties of the fluids being processed, flow rates, and pressure drop

• Computer s...read more