Kerala PSC Previous Years Question Paper & Answer
Page:19
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.
(11) Reducing gap between rolls
(iii) homogenization
A:-(i) only
B:-(iii) only
C:-(i), (ii) and (iii)
D:-(i) and (ii)
Correct Answer:- Option-D
Question97:-Uniform thickness of extrusion blow molded articles are achieved by
(1) Extruding parison with uniform thickness
(ii), Applying high blowing pressure
(iii) Parison programming
A:-(i) only
B:-(ii) and (iii)
C:-(iii) only
D:-(i), (ii) and (iii)
Correct Answer:- Option-C
Question98:-Forming temperature of polypropylene used for thermoforming is
A:-80-1102C
8:-140-16590
C:-175-2102C
D:-Any temperature above 7рел
Correct Answer:- Option-B
Question99:-Identify the combination of chemicals that can be used for RIM
A:-Hexamethylene diamine and adipic acid
B:-Terpthalic acid and ethylene glycol
C:-Poly(propylene oxide) triol and methylene diphenyl diisocyanate
D:-Ethylene oxide and diphenyl guanidine
Correct Answer:- Option-C
Question100:-Sequence of addition of compounding ingredients in early oil addition
method
(i) Elastomer
(11) Liquid ingredients
(iii) Dry ingredients
A:-(i), (ii), (iii)
B:-(ii), (i), (iii)
C:-(iii), (ii), (i)
D:-(i), (iii), (ii)
Correct Answer:- Option-D