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 'Laboratory Assistant Common Facility Service Centre' And exam conducted in the year 2023. And Question paper code was '019/2023/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:-2
Correct Answer:- Option-D
Question89:-In compression set test under constant deflection of vulcanized rubber
samples, the specimen is compressed to of its actual height.
A:-20%
B:-30%
C:-25%
D:-50%
Correct Answer:- Option-C
Question90:-The standard for methods of test for vulcanized rubber according to
815
A:-IS 3400
B:-IS 13360
C:-IS 3708
D:-IS 15636
Correct Answer:- Option-A
Question91:-In the tear test of rubber samples, maximum strength is obtained
when the sample direction is to the compound milling direction.
A:-Angled
B:-Parallel
C:-Perpendicular
D:-None of the above
Correct Answer:- Option-C
Question92:-In ross flexing test the rubber sample is repeatedly flexed about the
cut portion through angle.
A:-45°
B:-120°
C:-180°
D:-90°
Correct Answer:- Option-D
Question93:-MFI test is used to compare with in a thermoplastic polymer
type.
A:-Densities
B:-Grades
C:-Molecular weights
D:-Melting temperatures
Correct Answer:- Option-B