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 'Lecturer in Polymer Technology (Polytechnics)' And exam conducted in the year 2023. And Question paper code was '120/2023/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.
A:-BR and SBR
B:-BR and CR
C:-BR and IIR
D:-IR and EPDM
Correct Answer:-Question Cancelled
Question12:-The following is not a delayed action accelerator
A:-MBTS
B:-CBS
C:-NOBS
D:-DPG
Correct Answer:- Option-D
Question13:-A very convenient cure system for poly acrylate rubber is
A:-Peroxide
B:-lsocyanate
C:-Sulphur + MBTS
D:-Sulphur+soap
Correct Answer:- Option-D
Question14:-Banbury mixing is suitable for industries doing
A:-Large volumes of limited number of compounds based on similar rubbers
B:-Small volumes of a large number of compounds
C:-Any type of rubber industry
D:-Large volumes of large number of compounds involving all types of rubbers
Correct Answer:- Option-A
Question15:-Natural rubber is
A:-Highly suitable for injection moulding
B:-Difficult to injection mould due to compounds with high viscosity and high
scorch danger
C:-Difficult to injection mould due to scorch danger
D:-Difficult to injection mould due to high viscosity compounds
Correct Answer:- Option-B
Question16:-Reclaimed rubber is useful because
A:-It helps to reduce cost
B:-Ir reduces cost and gives processing advantages
(:-1 reduces cost, gives processing advantages and also improves ageing
resistance for NR compounds besides solving pollution problem caused by littering
of used tyres
D:-It reduces cost, gives processing advantages besides reducing pollution