Deccan Fine Chemicals R&D Chemist Interview Questions and Answers

Unit operations involved in cooking include mixing, heating, cooling, and separation processes.

• Mixing ingredients to create a homogeneous mixture (e.g. stirring batter)

• Heating to cook food (e.g. boiling, baking)

• Cooling to set or solidify food (e.g. refrigerating)

• Separation processes like filtering or straining (e.g. separating solids from liquids)

Equipment design involves identifying user needs, creating prototypes, testing, and refining the design.

• Identify user needs and requirements

• Create prototypes and test them thoroughly

• Refine the design based on feedback and testing

• Consider safety, ergonomics, and usability

• Use appropriate materials and manufacturing processes

• Ensure compliance with relevant regulations and standards

A centrifugal pump is a mechanical device used to transport fluids by converting rotational kinetic energy to hydrodynamic energy.

• Centrifugal pumps are commonly used in industries such as oil and gas, chemical, and water treatment.

• They work by using an impeller to create a low-pressure area at the center of the pump, which draws in fluid and then expels it at high pressure through the outlet.

• Pumps are used to transport...read more

NPSH stands for Net Positive Suction Head. It is a measure of the pressure available at the suction side of a pump to prevent cavitation.

• NPSH is important in pump selection and operation.

• It is the difference between the total suction head and the vapor pressure of the pumped fluid.

• Insufficient NPSH can lead to cavitation, which can damage the pump and reduce its efficiency.

• Different types of pumps have different NPSH r...read more