Kerala PSC Previous Years Question Paper & Answer
Page:13
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.
B:-Zeigler process
C:-Phillips process
D:-Metallocene polymerization
Correct Answer:-Question Cancelled
Question65:-Type of polypropylene that cannot crystallize
A:-Isotactic
B:-Syndiotactic
C:-Atactic
D:-All types of polypropylenes can crystallize
Correct Answer:- Option-C
Question66:-Glass transition temperature of PVC is
A:-—702C
B:-802C
C:-1002C
D:-1472C
Correct Answer:- Option-B
Question67:-Tower process for the production of polystyrene is a
A:-Bulk polymerization
B:-Solution polymerization
C:-Suspension polymerization
D:-Emulsion polymerization
Correct Answer:- Option-A
Question68:-PMMA produced by Bulk polymerization is difficult to melt process.
Why?
42-15 molecular weight is high
B:-It is having a highly cross linked structure
C:-Higher amount of impurities in it
D:-Low thermal stability of polymer
Correct Answer:- Option-A
Question69:-During the polymerization of nylon 6,6, acetic acid is added in to the
reaction system as a
A:-Molecular weight modifier
B:-Antifoaming agent
C:-Chain transfer agent
D:-Catalyst
Correct Answer:- Option-A