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 'Assistant Director (Plastic)' And exam conducted in the year 2023. And Question paper code was '139/2023/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.
FINAL ANSWER KEY
Question 139/2023/0ட
Paper Code:
Category 386/2021
Code:
Exam: Assistant Director (Plastic)
Date of Test 07-08-2023
Department Industries and Commerce
Question1:-Which of the following is/are correct about intrinsic viscosity?
(i) It is known as Staudinger index
(ii) It has the reciprocal of concentration as dimension
(11) It is known as limiting viscosity number
(iv) It is dynamic viscosity
A:-Only (ii) and (iii)
B:-Only (i) and (ii)
C:-Only (i) and (iii)
D:-All of the above
Correct Answer:- Option-D
Question2:-Which of the following is not correct about cationic polymerization?
(1) Molecular weight depends on monomer concentration
(ii) Molecular weight increases as temperature increases
(iii) The process is exothermic
(iv) As dielectric constant of solvent increases molecular weight increases
A:-Only (ii)
B:-Only (iv)
C:-Only (iii)
D:-Only (i) and (iii)
Correct Answer:- Option-A
Question3:-Which of the following is used as a telogen in the polymerization of
bromotrifluoroethylene?
A:-Trifluoroethylene
B:-Bromotrifluoromethane
C:-Tetrafluoroethylene
D:-Carbon tetrachloride
Correct Answer:- Option-B
Question4:-Which of the following is in the correct with respect to their Tg?
ಡ್ನ
Polymethylmethacrylate>Polybutylacrylate>Polyethylacylate>Polymethacrylate
B:-