Engineering Assistant Interview Questions and Answers for Freshers

I prefer to discuss topics related to process control in chemical engineering.

• Process control: I find the principles and techniques of process control fascinating.

• Control systems: I enjoy discussing the design and optimization of control systems in chemical processes.

• Instrumentation: I am interested in the various instruments used in chemical engineering and their applications.

• Automation: I find the automation of chemical processes and the use of advanced control strategies i...read more

Urea is manufactured through the Haber-Bosch process.

• The Haber-Bosch process is a chemical reaction that combines nitrogen and hydrogen to produce ammonia.

• The ammonia is then reacted with carbon dioxide to form urea.

• The process involves high pressure and temperature conditions.

• The reaction is catalyzed by iron-based catalysts.

• The urea produced is used as a fertilizer and in the production of plastics, resins, and adhesives.

The block diagram of a urea plant includes several stages such as synthesis, stripping, and granulation.

• The synthesis stage involves the reaction of ammonia and carbon dioxide to form ammonium carbamate, which is then dehydrated to form urea.

• The stripping stage involves the removal of excess ammonia and carbon dioxide from the urea solution.

• The granulation stage involves the formation of solid urea granules through a process of spraying and cooling.

• Other stages may include pu...read more

Prilled urea is obtained through a process called prilling, which involves the formation of small spherical pellets.

• Prilling is a method used to produce solid spherical particles.

• Urea is melted and then sprayed into a tower where it solidifies into small pellets.

• The pellets are then cooled and collected as prilled urea.

• Prilled urea is commonly used as a fertilizer due to its ease of handling and high nitrogen content.