Pfizer Executive Production Interview Questions and Answers

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

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

• Batch distillation involves separating a mixture into its components in a single batch, while continuous distillation involves a continuous feed of the mixture.

• Other types of distillation include vacuum distillation, steam distillation, an...read more

Pumps and valves are used in various industries for fluid control. There are different types of pumps and valves for different applications.

• Types of pumps: centrifugal, positive displacement, axial flow, and jet pumps

• Types of valves: ball, gate, globe, butterfly, needle, and diaphragm valves

• Pumps are used to move fluids from one place to another, while valves are used to control the flow of fluids

• Centrifugal pumps are ...read more

A packed bed column is a type of chemical reactor used for separation and purification processes.

• Consists of a cylindrical column filled with a packing material

• Fluid is passed through the column and interacts with the packing material

• Used in various industries such as chemical, pharmaceutical, and food processing

• Examples include distillation columns and gas absorption columns

Centrifugal pumps work on the principle of converting rotational kinetic energy into hydrodynamic energy.

• The pump has an impeller that rotates and creates a centrifugal force, which pushes the fluid towards the outer edge of the impeller

• The fluid then enters the volute casing, where the kinetic energy is converted into pressure energy

• The pressure energy then forces the fluid out of the pump and into the piping system

• Ce...read more

Bernoulli's equation relates the pressure, velocity, and height of a fluid in motion.

• The equation is based on the principle of conservation of energy.

• It is commonly used in fluid mechanics and aerodynamics.

• The equation can be used to calculate the pressure difference between two points in a fluid flow.

• It is also used to explain phenomena such as lift in airplane wings and the flow of blood in arteries.

• The equation is n

Heat exchangers are devices that transfer heat between two or more fluids.

• Types include shell and tube, plate and frame, and air-cooled

• Shell and tube exchangers are commonly used in chemical and oil refineries

• Plate and frame exchangers are used in HVAC systems and food processing

• Air-cooled exchangers are used in power plants and natural gas processing

• Heat exchangers are also used in refrigeration and air conditioning s

GMP stands for Good Manufacturing Practice, a set of guidelines ensuring products are consistently produced and controlled according to quality standards.

• GMP is a system for ensuring that products are consistently produced and controlled according to quality standards.

• It is designed to minimize the risks involved in any pharmaceutical production that cannot be eliminated through testing the final product.

• Examples of GM...read more

Deviation refers to the difference between an expected or planned outcome and the actual outcome.

• It is a measure of how far a result is from the expected or average result.

• Deviation can be positive or negative depending on whether the actual result is higher or lower than expected.

• It is commonly used in statistics to measure the variability of a set of data.

• For example, if the average height of a group of people is 5'6...read more

Change controls are procedures used to manage changes to a product or process.

• Change controls ensure that changes are properly evaluated, approved, and implemented

• They help to prevent errors, defects, and deviations from specifications

• Examples include changes to manufacturing processes, equipment, or materials

• Documentation and record-keeping are important aspects of change controls

There are various types of deviation that can occur in production processes.

• Material deviation - when the raw materials used in production are different from the specified ones

• Process deviation - when the production process deviates from the standard operating procedure

• Equipment deviation - when the equipment used in production is not functioning as intended

• Environmental deviation - when external factors such as temper...read more

Change controls are procedures used to manage changes to a product or process.

• Document change requests

• Evaluate impact of change

• Obtain approval from relevant parties

• Implement change

• Verify effectiveness of change

• Maintain records of change

• Types include: design, process, equipment, material, and supplier changes

Corrective action is taken to fix a problem that has already occurred, while preventive action is taken to avoid a problem from happening in the future.

• Corrective action is reactive, while preventive action is proactive.

• Corrective action is taken after a problem has been identified, while preventive action is taken before a problem occurs.

• Examples of corrective action include repairing a machine that has broken down, w...read more

Akums industry offers significant growth opportunities and fosters a positive work environment.

• Akums industry is experiencing steady growth due to increasing demand for pharmaceutical products.

• The company has a strong presence in both domestic and international markets, allowing for expansion and diversification.

• Akums industry invests in research and development, leading to innovation and new product offerings.

• The comp...read more

It is important to check all RM, equipment, and utility before batch charging to ensure quality and safety.

• Inspect all raw materials for quality and quantity

• Check equipment for cleanliness and proper functioning

• Ensure all utilities (water, electricity, etc.) are available and functioning properly

• Verify that all safety measures are in place

• Perform necessary calibrations and validations

• Document all checks and inspections