Kerala PSC Previous Years Question Paper & Answer
Page:16
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Assistant Director (Plastic)' And exam conducted in the year 2023. And Question paper code was '139/2023/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:-HDPE has high degree of short and long chain branching
C:-UHMWPE is made up of extremely long chains of polyethylene, which all
align in the same direction
D:-UHMWPE is made up of short chains of polyethylene, which all align in the
same direction
Correct Answer:- Option-C
Question81:-Which among the following test is carried out as per ASTM D 256
A:-Tensile testing
B:-lzod impact testing
C:-Tear Strength testing
D:-Vicat softening temperature
Correct Answer:- Option-B
Question82:-As per is 532 : 2006 tension set of cycle tube shall not be more than
A:-10%
B:-12%
C:-15%
D:-20%
Correct Answer:- Option-C
Question83:-In tensile testing of a rubber sample using standard dumbbell
specimen, the maximum load observed is 60 N. Find the ultimate tensile strength of
the gague length of specimen = 200mm, thickness of specimen = 2mm and the
wodth of specimen at narrow portion = 633
A:-5N/mm2
B:-0.05 N/mm?
C:-50 (0/2
D:-0.15 N/mm?
Correct Answer:- Option-A
Question84:-Expression for cure index (AtL) in a cure characteristics study using
money viscometer with a large rotor is
ودود = ^-^
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رو1- وو > ر۵8-: مآ
Correct Answer:- Option-A
Question85:-According to BIS specification minimum mechanical stability time
required for concentrated NR latex is
A:-105
B:-546