www.Unitoperation.com is a Complete Site for Graduate Aptitude Test in Engineering (GATE Chemical Engineering Examinations 1990-2013) Question papers and Answers ,Quiz Solutions, Job Interview and Professional Engineering (PE) Examination Questions and Study materials.  This is world's largest collection of Chemical Engineering Quiz questions and answers.  


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Dear students:

Due to some pressing personal commitments, I could not update this website for about two years.  I realize that this has caused immense difficulties for a large number of students who depend heavily on information given in this website. I hope that now Id able to devote more time to make this site up-to-date and more informative. 

I also take this opportunity to express my gratitude to a number of students for their contributions-e.g. GATE 2013, 2014 and 2015 questions papers and answer keys.  

Thank you

An Appeal

If you have recently appeared in a Multiple Choice type of examination in Chemical Engineering and are in possession or have access to the original question paper (with or without the answers), I would request to send it to me so that I may post it  in the website for its availability to  our students. I would definitely acknowledge your contribution in the website.

I'd also like to take this opportunity to acknowledge the contributions made by several visitors- for their suggestions, comments and identification of  mistakes in the solutions I posted in the website.

Thanking you in advance

Sekhar Bhattacharjee (sekharbhatta@gmail.com)