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.
B:-Cl resine
C:-Rosin derivatives
D:-All of these
Correct Answer:- Option-C
Question55:-Which material is widely used in latex - based paper adhesives?
A:-Cl resin
B:-Cooked starch
C:-Rosin derivatives
D:-All of these
Correct Answer:- Option-B
Question56:-Which material is widely used to make curing bags in tyre moulds?
A:-Sulphur cured IIR
B:-Resin cured IIR
C:-Di oxime cured IIR
D:-All of these
Correct Answer:- Option-B
Question57:-In hoses, if braid angle is greater than neutral then hose will have
A:-Increased length and increased diameter
B:-Increased length and decreased diameter
C:-Decreased length and increased diameter
D:-Decreased length and Decreased diameter
Correct Answer:- Option-B
Question58:-Which adhesive is generally used when moulded and vulcanized
rubber piece is directly adhered on the metal parts in rubber to metal bonded
products?
A:-Epoxy adhesive
B:-PU based adhesives
C:-NR latex-based adhesives
D:-Polymide adhesive
Correct Answer:- Option-A
Question59:-Which type of accelerators are generally avoided in rubber to metal
bonded products?
A:-Thiurams
B:-Thiazoles
C:-Sulphenamide
D:-All of these
Correct Answer:- Option-A