Enzene Biosciences QA QC Engineer Interview Questions and Answers

There are several types of pumps used in mechanical engineering.

• Centrifugal pumps

• Reciprocating pumps

• Rotary pumps

• Diaphragm pumps

• Gear pumps

• Vane pumps

• Screw pumps

• Jet pumps

• Peristaltic pumps

• Piston pumps

The parts of a pump include impeller, casing, shaft, bearings, seals, and motor.

• Impeller: Rotating component that imparts energy to the fluid.

• Casing: Encloses the impeller and directs the flow of fluid.

• Shaft: Transmits the rotational motion from the motor to the impeller.

• Bearings: Support the shaft and reduce friction.

• Seals: Prevent leakage of fluid along the shaft.

• Motor: Provides the power to drive the pump.

Condensers are devices used to condense a substance from its gaseous to its liquid state.

• There are two main types of condensers: air-cooled and water-cooled.

• Air-cooled condensers use air as the cooling medium, while water-cooled condensers use water.

• Examples of air-cooled condensers include car radiators and air conditioning units.

• Examples of water-cooled condensers include cooling towers and refrigeration systems.

• Othe...read more

Azeotropic distillation is a process used to separate azeotropes, which are mixtures of liquids that boil at a constant temperature.

• Azeotropic distillation involves adding a third component to the mixture to break the azeotrope.

• The third component forms a new azeotrope with one of the original components, which can then be separated from the other component.

• This process is commonly used in the production of ethanol, wh...read more

Reynolds number is a dimensionless quantity used to predict fluid flow patterns and turbulence.

• Reynolds number is calculated as the ratio of inertial forces to viscous forces in a fluid.

• It is used to determine whether a fluid flow is laminar or turbulent.

• The range of Reynolds number for laminar flow is less than 2300, while for turbulent flow it is greater than 4000.

• In between these values, the flow may be transitional...read more