Aarti Industries Senior Chemist Interview Questions and Answers for Experienced

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

Agitator scale up criteria involves factors like power input, mixing time, impeller diameter, and fluid properties.

• Power input should be proportional to the cube of the impeller diameter

• Mixing time should be adjusted to ensure proper mixing without over-shearing the fluid

• Fluid properties such as viscosity and density should be considered when scaling up

• Pilot testing can help determine the appropriate scale up criteria

• E...read more