Chennai Petroleum Corporation Engineering Assistant Interview Questions, Process, and Tips

30 question from Numerical Aptitude, 10 from english language, 10 GK, 10 reasoning, 60 from branch subject and safety. With negative marking ok 25%.

Q1. Where are you working
Ans. I am working in urea plant, chambal fertilizer chemicals ltd, kota
Answered by O210 089_Vinod Kumar Varma[PT]
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Q2. Which process used to manufacture urea?
Ans. 
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 adhes
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Q3. How you get prilled urea?
Ans. 
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.
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Q4. Show the block diagram of urea plant.
Ans. 
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 p...read more
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Q5. I make the block diagram
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Q6. Which subject you prefer to discuss from chemical engg
Ans. 
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 chemi...read more
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