Kerala PSC Previous Years Question Paper & Answer
Page:6
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'LECTURER IN TEXTILE TECHNOLOGY (NCA)' And exam conducted in the year 2019. And Question paper code was '039/2019/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. 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.
Correct Answer:- Option-A
Question48:-Analysis of fiber structure by means of diffraction of electromagnetic waves is more compatible with x-rays
than with ordinary visible light because
A:-X-rays has higher energy than ordinary light
B:-X-rays has wave lengths smaller than ordinary light
:-It is easy to get picture or photographs with x-rays
D:-Wave lengths are comparable with crystallite sizes of fibre
Correct Answer:- Option-D
Question49:-Electromagnetic waves used in NMR spectroscopy is
A:-Ultra-violet rays
B:-Radio waves
:-Gamma rays
D:-Infra-red rays
Correct Answer:- Option-B
Question50:-The helix reversal is found in
A:-Jute
B:-Wool
C:-Silk
D:-Cotton
Correct Answer:- Option-D
Question51:-If initial modulus and moment of inertia of a fibre are denoted by E and |, respectively, the bending rigidity of
the fibre is expressed as
சிப்பு
B:-I/E
C:-EP
D:-El
Correct Answer:- Option-D
Question52:-Which one of the following statements is wrong?
A:-The density is same for both cotton and viscose
B:-The degree of polymerization is same for both cotton and viscose
C:-Both cotton and viscose are hydrophilic fibres
D:-Both cotton and viscose are the cellulosic fibres
Correct Answer:- Option-B
Question53:-Which one of the following statements is correct with respect to a textile fibre?
A:-It is transversely isotropic
B:-The primary bond strength is weaker than secondary bond.
C:-Essentially it is made of short chain molecules.
D:-It is having very high density.
Correct Answer:- Option-A
Question54:-Which one of the following statements is true?
A:-Glass is 100% crystalline fibre.
B:-Polypropylene is 100% amorphous fibre.
C:-Cotton is 50% crystalline fibre.
D:-Wool is 30% crystalline fibre.
Correct Answer:- Option-D
Question55:-Water acts as catalyst for the production of
A:-Nylon 6
B:-Acrylic
C:-Viscose
D:-Polyester
Correct Answer:- Option-A
Question56:-Which of the following fibre properties is not governed by its amorphous content?
A:-Dye uptake
B:-Moisture content
C:-Extensibility
D:-Friction
Correct Answer:- Option-D
Question57:-Which one of the following is the correct order in a DSC heating plot with increasing temperature?
A:-Glass transition, crystallization, melting