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Chemical Engineering Interview Questions
Questions Answers Views Company eMail

In DM plant, If pH in anion outlet is 7.2 and Mixed bed pH is 6.2, wat could be the reason.

Cipla, Jindal,

8 27362

significance of fouling factor in shell and tube heat exchnager

1 5613

distillation types (vacuum, azeotropic, steam, extractive)

1 1774

what is difference between urea and NPK fertiliser?

2 20208

what is AZ431 & how to check it by using multimeter?


A cylinder having water is being evacuated with constant rate. what is the relation between pressure which is existing in cylinder with time? (P and t relation)

2 3059

white rust formation over zinc plated and yellow passivated fasteners during CED painting. WHY?

Wheels India,


Need to design filter...Length and diamter of shell

1 2556

Diffrence between centrifugal & recipocating pump?

Essar, IOCL,

8 8247

why distillation of water takes more time than toluene ,eventhough the later boiling point is more than water ?

3 5673

Hello i am a chemical engineer presently looking for a job i am applying many jobs in naukri and in all job portals but i am not getting any call or interview so kindly some one help me in this regard soundar


i need formula for calculating discharge of river, the data i have is variation of water pressure, variation of air pressure,depth of water and length of river. please i need help

1 2622

What diffrence between flush distillation & batch distillation ?


what is the difference between the heat exchanger and cooling tower???????????

BARC, Essar,

10 23941

Three solid objects of the same material and of equal mass – a sphere, a cylinder (length = diameter) and a cube – are at 5000C initially. These are dropped in a quenching bath containing a large volume of cooling oil each attaining the bath temperature eventually. The time required for 90% change of temperature is smallest for a) cube b) cylinder c) sphere d) equal for all the three whyyyyyyy???????


2 4159

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Un-Answered Questions { Chemical Engineering }

What is some good advice for specifying allowable pressure drops in shell and tube exchangers for heavy hydrocarbons?


Which type of pneumatic control valve is used mostly Either Air to Open r Air to close the value And guys I need reason for your reason


need the type of technical questions in written test


What are the assumptions made on conservation equation?


Why in a continuous plant for a Hot standby screw pump system the interlock for auto starting of the other pump ( when the running pump stopped suddenly) is given with header pressure only? why not with flow rate or current of the pump?


repected sir i have given gate exam today.......... if i ll get the better rank in that ....what is the next process .....shall i give another one test......or wat....i dint get properlly..... plz help me or mail me on


Explain what are some typical applications for glass-lined reactors?


Are there any general rules for flushing slurry lines?


Hallow everybody, we want to know in a NPk fertilizer process plant (Bulk Blender) we are in doubt if use square or rectangular hopper jus to avoid the vault effect durin the flow of of raw material like Phosphorus, Potasium and zeolite..Please any advise will be appresated Isdray


Define a surfactant?


We are having proplem with the persperation smell in ETT/ECHO room in our cardiac hospital.The 2 Ton of AC is not conditioning the environment. We have to use exhaust fan to through out of the room bad air. Could anyone suggest how to coup with this effectively using chemical engineering. Any permanent solution to neutralise the bad smell.The Air freshners are not doing enough instead making a bad odour.


Are some heat transfer services more prone to tube vibration that others for a shell and tube exchanger?


Explain the largest application for surfactants?


Explain the reasons of removal of particles from effluent gas?


What industries require filtered compressed air?