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 '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.
D:-coagulation
Correct Answer:- Option-D
Question15:-Cuplumps and tree lace are used for making
A:-pale crepes
B:-sole crepes
C:-brown crepes
D:-none of the above
Correct Answer:- Option-C
Question16:-The dry-rubber content of raw natural rubber latex may be
A:-20%
B:-50%
C:-60%
D:-32%
Correct Answer:- Option-D
Question17:- helps to prevent natural coagulation and allows the latex to
remain in its liquid state for a long time.
A:-Ammonia solution
B:-Sulphuric acuid
C:-Formic acid
D:-Tamarind seed powder solution
Correct Answer:- Option-A
Question18:-Among the following which is not marketable form of natural rubber?
A:-Ribbed sheets
B:-Latex concentrate
C:-Field coagulum
D:-Crepe rubber
Correct Answer:- Option-C
Question19:-The pH of fresh latex is in the range of
A:-3.0 - 4.0
B:-6.5 - 7.0
C:-5.0 - 6.0
D:-7.5 - 8.0
Correct Answer:- Option-B
Question20:-Which chemical is not used for low-ammonia preservative systems?
A:-Tetramethylthiuram disulphide
B:-Zinc oxide