Kerala PSC Previous Years Question Paper & Answer
Page:18
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.
Correct Answer:- Option-A
Question91:-Compression ratio that can be used for rigid PVC extruder is
A:-3.9:1
B:-1.2:1
C:-2.5:1
D:-10:1
Correct Answer:- Option-C
Question92:-Which method is used for the production of electric wires
A:-Vented extrusion
B:-Cross head extrusion
C:-Twin screw extrusion
D:-Blown film extrusion
Correct Answer:- Option-B
Question93:-Sink mark defect in transfer molding can be eliminated by
(1) Increasing transfer pressure
(11) Increasing charge weight
(111) Reducing mold temperature
A:-(i) only
B:-(i) and (ii)
C:-(ii) only
D:-(i), (ii) and (iii)
Correct Answer:- Option-D
Question94:-Which among the following gate is preferred for making solid block
type injection molded articles
A:-Tab gate
B:-Film gate
C:-Ring gate
D:-Pin gate
Correct Answer:- Option-A
Question95:-Rotors of banbury are
A:-Intemeshing
B:-Non Intemeshing
C:-can be intemeshing or non intemeshing
D:-Like rolls of two roll mill
Correct Answer:- Option-B
Question96:-In compounding of rubber using two roll mill, dispersive mixing can be
improved by
(1) Increasing shear rate