Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Instructor Grade I in Chemical Engineering (Engineering Colleges)' And exam conducted in the year 2022. And Question paper code was '067/2022/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
B:-decreases
Ceremains constant
D-cannot be predicted
Correct Answer:- Option ®
QuestionS4:-Total reflux condition used in a distillation column leads to
‘Acinfinite number of stages
B:-Minimum condenser heat duty
CMinimum number of stages
D-Both (B) and (C)
Correct Answer:- Option-C
QuestionS5:-In extractive distillation, the solvent added
AcAlter relative volatility of the mixture
പിട present in the overhead stream
Cols of high volatility
D-All the above
Correct Answer:- Option-é
QuestionS6:-Raoult’s law and Henry's law are used to get equilibrium data for
‘A: Dilute non-ideal solutions and ideal solutions respectively
B:-Concentrated non-ideal solutions and ideal solutions respectively
CeKdeal solutions and dilute non-ideal solutions respectively
D-Both ideal and norvideal solutions
Correct Answer:- Option-C
QuestionS7:-In an air water vapour mixture, if PS and RS represent percent saturation and relative saturation respectively, which of the following is correct ?
‘APS and RS are not related
8:75 785
co
RS
كم > وميم
Correct Answer:- Option-D
QuestionS8:-Which of the following is nat a desirable property for a good leaching solvent ?
‘Ac High vapour pressure
B:-Low density
CeLow viscosity
D:-High solubility of the solute in the solvent
Correct Answer:- Option-é
Question59:-The cooling tower preferred in applications with large cooling duties is
AcForced draft tower
Bs-Induced draft tower
C-Mechanical draft tower
D-Natural draft tower
Correct Answer:- Option-D
Question60:-Rate controlling mechanism during constant-rate period in drying of a material is,
‘Ac External mass transfer between the material surface and bulk gas
B:-Internal diffusion of moisture through pores of the material
11)
D:-Vapour diffusion
Correct Answer:- Option-é
Question61::Which of the following is/are correct about soap manufacturing ?
i. The kettle process is much better than the Sharples process
i. The spent lye is repeatedly recycled in four state operations in the Sharples process
i, Steam consumption per kg of fat is high in the kettle process
iv, All the stages of the kettle process are carried out in automatically controlled separate units.
A:Only iand ii