Kerala PSC Previous Years Question Paper & Answer
Page:17
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.
Question86:-Which among the following is a unit of tear strength?
A:-N/m2
B:-kN/m
C:-kg.cm
D:-J/m?
Correct Answer:- Option-B
Question87:-Durometer is used to measure
A:-Hardness
B:-Resiliance
C:-Elasticity
D:-Plasticity
Correct Answer:- Option-A
Question88:-In an abrasion resistance test using DIN abrader, the volume loss of
standard rubber in cubic millimeters is v. and volume loss of test rubber in cubic
millimeters is ४५
പി]
B:-7!x100
Vs
ve
D:-v. xv,
Correct Answer:-Question Cancelled
Question89:-In a compression set test at constant strain, the original thickness of
specimen = 12.5mm. Final thickness of specimen = 12.2 mm and thickness of the
space bar used = 9.5 mm. Find the compression set of specimen.
A:-0.1%
B:-10%
C:-2.4%
D:-1%
Correct Answer:- Option-B
Question90:-Vicat softening temperature is the temperature at which the specimen
is penetrated to a depth of by a flat ended needle with a imm? cross
section.
A:-lmm
B:-1 in
C:-0.1 in
D:-10mm
Correct Answer:- Option-A
Question91:-Which apparatus is used for the determination of melting point?
A:-TGA apparatus