Kerala PSC Previous Years Question Paper & Answer
Page:11
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Workshop Instructor/ Instructor Grade II/ Demonstrator/ Draftsman Grade II in Polymer Technology' And exam conducted in the year 2023. And Question paper code was '099/2023/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:-3.2 to 3.6 mm
B:-3 to 3.4 mm
C:-2.8 to 3.4 mm
D:-3 to 4mm
Correct Answer:- Option-A
Question55:-In order to find ash content of a ISNR sample it should be heated
(i) At 5502C
(ii) At 86
(iii) under nitrogen blanket
(iv) in presence of oxygen
A:-(i) and (ii)
B:-(i) and (iv)
C:-(ii) and (iii)
D:-(ii) and (iv)
Correct Answer:- Option-B
Question56:-Catalytic mixture used in the determination of nitrogen content of ISNR
consist of
(i) Selenium powder
(ii) Ferrous sulphate
(iii) Potassium sulphate
(iv) Copper sulphate
A:-(i) and (ii)
B:-(i), (ii) and (iii)
C:-(i), (iii) and (iv)
D:-(i), (ii) and (iv)
Correct Answer:- Option-C
Question57:-According to BIS specification test for determining dry rubber content,
the TSC of the concentrated latex sample is adjusted to before
coagulating it.
A:-20%
B:-30%
C:-25%
D:-32%
Correct Answer:- Option-A
Question58:-Indicator used for the determination of the alkalinity of concentrated
latex is
A:-Phenolpthalein
B:-Methyl Red
C:-Thymol Blue