Deepak Nitrite Research and Development Interview Questions and Answers

Organic chemistry deals with carbon-based compounds while inorganic chemistry deals with non-carbon-based compounds.

• Organic chemistry involves the study of hydrocarbons, alcohols, carbohydrates, proteins, and nucleic acids.

• Inorganic chemistry involves the study of metals, minerals, and non-carbon-based compounds like water, salts, and acids.

• Organic compounds are generally covalently bonded while inorganic compounds can...read more

Reflux ratio is the ratio of the amount of reflux to the amount of distillate in a distillation column.

• Reflux ratio is an important parameter in distillation processes.

• It is defined as the ratio of the amount of liquid returned to the column as reflux to the amount of liquid removed as distillate.

• A high reflux ratio results in a higher purity of the distillate, but also requires more energy to maintain.

• Reflux ratio can...read more

R=f/d is the formula for calculating resistance.

• R is the resistance of the material

• f is the force applied to the material

• d is the distance over which the force is applied

• The formula is commonly used in physics and engineering

• Example: calculating the resistance of a wire

A loop is a programming construct that repeats a set of instructions until a specific condition is met.

• Loops are used to automate repetitive tasks.

• There are three types of loops: for, while, and do-while.

• For loop is used when the number of iterations is known.

• While loop is used when the number of iterations is unknown.

• Do-while loop is used when the loop must execute at least once.

• Example: for(int i=0; i<10; i++) { //co

F/o and F/c are aviation terms used to refer to the first officer and flight crew respectively.

• F/o stands for first officer, who is the second-in-command of the aircraft and assists the captain in flying the plane.

• F/c stands for flight crew, which includes all the members of the crew who are responsible for the safety and comfort of the passengers.

• The first officer is also known as the co-pilot and is responsible for m...read more

Distillation column is used to separate components of a mixture based on their boiling points.

• It works on the principle of vapor-liquid equilibrium.

• The mixture is heated and vaporized in the column.

• The vapor rises and condenses at different heights based on their boiling points.

• The condensed liquid is collected in trays or plates.

• The separated components are then collected from different trays.

• It is commonly used in th

I handle multiple types of reactors and have experience in troubleshooting them. I am familiar with various makes of reactors, vessels, and pumps.

• I have experience in handling batch reactors, continuous stirred tank reactors (CSTR), and plug flow reactors (PFR).

• I am skilled in troubleshooting issues related to reactor temperature, pressure, and mixing.

• I have worked with reactors from different manufacturers such as ABC...read more

Mechanical seals are used to prevent leakage between two rotating parts in a machine. There are various types of mechanical seals.

• Types of mechanical seals include pusher, non-pusher, cartridge, and split seals.

• Parameters of mechanical seals include seal face material, seal face design, and secondary sealing elements.

• Seal face materials can be ceramic, carbon, or tungsten carbide.

• Seal face design can be single or doubl...read more

I handle various types of columns and troubleshoot issues related to them.

• I handle columns such as HPLC, GC, ion exchange, and size exclusion.

• I troubleshoot issues related to column clogging, peak broadening, and retention time shifts.

• I also perform regular maintenance and calibration to ensure optimal column performance.

• For example, if I notice a decrease in column efficiency, I may check for leaks, adjust the flow ra...read more

Vacuum systems use various types of equipment, including dry vacuum pumps.

• Vacuum systems require pumps to create and maintain a vacuum.

• Dry vacuum pumps are oil-free and use non-contacting parts to create a vacuum.

• Examples of dry vacuum pump makes include Edwards, Leybold, and Agilent.

• Other types of vacuum pumps include rotary vane, scroll, and turbomolecular pumps.

We work with multiple fabrication, insulation and other parties as per job requirements and manage them through effective communication and coordination.

• We identify the required parties for each job and establish clear communication channels with them.

• We ensure that all parties are aware of their responsibilities and timelines.

• We regularly monitor the progress of each party and address any issues that arise promptly.

• We...read more

The procedure for outside vendor involves identifying the vendor, negotiating terms, creating a contract, and following up on deliverables.

• Identify the vendor and their capabilities

• Negotiate terms and pricing

• Create a contract outlining expectations and deliverables

• Follow up regularly to ensure timely delivery and quality

• Maintain open communication with the vendor throughout the process

• Evaluate vendor performance and ma

Troubleshooting involves identifying and resolving issues in unit operations and processes.

• Identify the problem by analyzing data and observing the process

• Develop a plan to address the issue, including potential solutions

• Implement the plan and monitor the process to ensure the issue is resolved

• Document the troubleshooting process and share findings with relevant stakeholders