LECTURER IN POLYMER TECHNOLOGY - POLYTECHNICS - TECHNICAL EDUCATION KERALA | Exam held on : 30-11-2015 | Kerala PSC Previous Year Fully Solved Question Paper  | Year - 2015
1] The concept of Directive Principles of State Policy in Indian Constitution was borrowed from
[a] Britain
[b] Ireland
[c] Canada
[d] Russia
Answer : B
2] Which Articles of Indian Constitution was described as 'heart and soul of Indian Constitution'?
[a] Article 28
[b] Article 29
[c] Article 30
[d] Article 32
Answer : D
3] The Chief Legal Advisor to the Government of India is
[a] Attorney General
[b] Advocate General
[c] Chief Justice of India
[d] Comptroller and Auditor General of India
Answer : A
4] Who is popularly known as the 'Father of Indian Constitution'?
[a] K.M. Munshi
[b] Sardar Vallabhai Patel
[c] Jawaharlal Nehru
[d] Dr. B.R. Ambedkar
Answer : D
5] Which part of Indian Constitution has been described as the 'Magna Carta' of India?
[a] Part III
[b] Part IV
[c] Part V
[d] Part VI
Answer : A
6] Who wrote the book 'envisioning an empowered nation: technology for societal transformation'?
[a] K.R. Narayanan
[b] A.P.J. Abdul Kalam
[c] R. Venkita Raman
[d] V.V. Giri
Answer : B
7] The founding father of Modern Singapore
[a] Goh Chok Tong
[b] Lee Hsien Loong
[c] Mao Zedong
[d] Lee Kuan Yew
Answer : D
8] Which city will host the 2016 World Summer Olympics?
[a] Rio de Janeiro
[b] Tokyo
[c] Beijing
[d] London
Answer : A
9] The first Vice Chairman of newly constituted NITI Aayog was
[a] Narendra Modi
[b] Arvind Panagariya
[c] Arun Jaitley
[d] Suresh Prabhu
Answer : B
10] The Good Will Ambassador of 35th National Games in India
[a] P.T. Usha
[b] Anju Bobby George
[c] Sachin Tendulkar
[d] Preeja Sreedharan
Answer : C
11] The famous Kallumala agitation for social freedom was organized under the leadership of
[a] Sree Narayana Guru
[b] Chattampi Swamikal
[c] Thycaud Ayya Vaikundar
[d] Ayyankali
Answer : D
12] The social reformer who organized 'misra-bhojanam' (interdining) for eradicating the evils of caste system was
[a] Sahodaran Ayyappan
[b] Brahmananda Sivayogi
[c] Vagbhadananda
[d] Kumaraguru
Answer : A
13] The 'Savarna Jatha' related to Vaikam Satyagraha was organized under the leadership of
[a] T.K. Madhavan
[b] Mannath Padmanabhan
[c] K. Kelappan
[d] C.V. Kunhiraman
Answer : B
14] Who founded 'Samatva Samajam' one of the earliest social organization of Kerala?
[a] Swamy Vagbhatananda
[b] Pokayil Yohannan
[c] Pandit K.P. Karuppan
[d] Vaikunta Swami
Answer : D
15] The ruler of Travancore who issued the famous Temple Entry Proclamation
[a] Swathi Thirunal Rama Varama
[b] Sree Chitra Thirunal Balarama Varama
[c] Sree Moolam Thirunal
[d] Visakham Thirunal Rama Varama
Answer : B
16] The first annual session of S.N.D.P. Yogam held at
[a] Sivagiri
[b] Cherai
[c] Aruvipuram
[d] Paravur
Answer : C
17] The founder of Islam Dharma Paripalana Sangham was
[a] Vakkom Abdul Khadar Maulavi
[b] Vaikom Muhammad Basheer
[c] Rama Krishna Pillai
[d] Makthi Thangal
Answer : A
18] Who published 'Rajya Samacharam' the first newspaper in Malayalam Language?
[a] Rev. Benjamin Bailey
[b] Fr. Muller
[c] Dr. Herman Gundert
[d] Rev. George Marthen
Answer : C
19] Who wrote the historical novel 'Rama Raja Bahadur'?
[a] A.R. Raja Raja Varma
[b] C.V. Raman Pillai
[c] K.M. Panikkar
[d] Oyyarathu Chandu Menon
Answer : B
20] Who hailed Akkamma Cheriyan as 'The Jhansi Rani of Travancore'?
[a] M.K. Gandhi
[b] B.G. Tilak
[c] Bipin Chandra Pal
[d] Jawaharlal Nehru
Answer : A
21] Which of the following is a trifunctional monomer?
[a] Propylene
[b] Butadiene
[c] Glycerol
[d] Glycol
Answer : C
22] Polymer molecular weight is equal to repeat unit molecular weight times n, where n is
[a] Degree of polymerization
[b] Functionality
[c] Molecular weight distribution
[d] Extent of polymerization
Answer : A
23] Below the glass transition temperature the free volume is
[a] Maximum
[b] Zero
[c] One
[d] Minimum
Answer : D
24] Which of the following is a first order process?
[a] Solidification
[b] Vapourization
[c] Melting
[d] All of these
Answer : D
25] Glass transition temperature of polyisoprene is
[a] Below room temperature
[b] Above room temperature
[c] Zero
[d] None of these
Answer : A
26] A SBR is an example of
[a] Graft copolymer
[b] Random copolymer
[c] Block copolymer
[d] Homopolymer
Answer : B
27] Hilderbrand is the unit of
[a] Flory interaction parameter
[b] Enthalpy
[c] Solubility parameter
[d] None of these
Answer : C
28] For a polymer prepared by free radical polymerization
[a] Mw > Mn
[b] Mw < Mn
[c] Mz < Mn
[d] Mn = Mw = Mz
Answer : A
29] Polydispersity index is said to be 1 when
[a] Mw = Mn
[b] Mw > Mz
[c] Mz > Mz+1
[d] None of these
Answer : A
30] In emulsion polymerization technique, the polymerization takes place in
[a] Water phase
[b] Monomer phase
[c] Water/Monomer interphase
[d] Micelle
Answer : [cancelled by Kerala PSC]
31] Thermoplastic polyurethane is a
[a] Thermoplastic
[b] Elastomer
[c] Thermoplastic elastomer
[d] Thermoset
Answer : C
32] For EPDM the unsaturation is in the
[a] Main chain
[b] Branches
[c] Pendent groups
[d] All of these
Answer : C
33] The monomers of butyl rubber are
[a] Butadiene and isoprene
[b] Butadiene and 1-butene
[c] Isoprene and 1-butene
[d] None of these
Answer : D
34] The property that is lowered by increasing CN content of NBR is
[a] Oil resistance
[b] Low temperature flexibility
[c] High temperature resistance
[d] None of these
Answer : B
35] The EPM is not cured by
[a] Sulphur
[b] Peroxide
[c] Radiation
[d] Oxime
Answer : A
36] Fluorocarbons are known for
[a] High temperature resistance
[b] Ozone resistance
[c] Oil resistance
[d] All of these
Answer : D
37] Nylon 66 melts at (deg C)
[a] 219
[b] 249
[c] 269
[d] 289
Answer : C
38] In unsaturated polyester the monomer that is commonly used to give crosslinking sites is
[a] Fumaric acid
[b] Terephthalic acid
[c] Itaconic acid
[d] Maleic anhydride
Answer : D
39] Neoprene is commonly cured with
[a] Sulphur
[b] Metal oxide
[c] Peroxide
[d] Radiation
Answer : B
40] An example of amorphous polymer is
[a] UPVC
[b] PMMA
[c] Polystyrene
[d] All of these
Answer : D
41] For polymer containing OH group a major absorption peak is expected at (wave number)
[a] 3400
[b] 3000
[c] 2450
[d] 1700
Answer : A
42] Which of the following is commonly use to estimate crystallinity?
[a] NMR
[b] TGA
[c] X ray
[d] TMA
Answer : C
43] Tan delta is defined as
[a] Loss modulus / storage modulus
[b] Storage modulus / loss modulus
[c] Logarithmic decay / phase angle
[d] Phase angle / storage modulus
Answer : A
44] The angle of oscillation in MDR is (degrees)
[a] 2.0
[b] 0.2
[c] 3.0
[d] 360
Answer : [cancelled by Kerala PSC]
45] Resilience is inversely related to
[a] Compression set
[b] Heat build up
[c] Tension set
[d] All of these
Answer : B
46] Tear strength is optimum at
[a] Optimum cure
[b] Slight under cure
[c] Slight over cure
[d] None of these
Answer : B
47] A high value of tan delta indicates
[a] good traction
[b] good mileage
[c] low heat build up
[d] All of these
Answer : A
48] Which rubber gives high tear resistance?
[a] PBD
[b] SBR
[c] IIR
[d] NR
Answer : D
49] A DSC can measure
[a] Heat capacity
[b] Glass transition temperature
[c] Melting point
[d] All of these
Answer : D
50] Compression set at constant stress is measured using
[a] Constant load
[b] Constant strain
[c] Variable strain
[d] Variable temperature
Answer : [cancelled by Kerala PSC]
51] A parison is used in
[a] Blow moulding
[b] Transfer moulding
[c] Compression moulding
[d] None of these
Answer : A
52] PET is not used in extrusion blow moulding because
[a] High viscosity
[b] High die swell
[c] Low melt strength
[d] Shark skin effect
Answer : C
53] Which of the following is amenable to reaction injection moulding?
[a] PET
[b] TPU
[c] NYLON
[d] PU
Answer : D
54] RRIM is used when
[a] Good strength is needed
[b] Fast reaction is needed
[c] High volume output is needed
[d] None of these
Answer : A
55] In a two roll mill the shear rate is adjusted by
[a] reducing nip gap
[b] increasing roll speed ratio
[c] both of these
[d] none of these
Answer : C
56] The effect of roll bending in calendaring operation is reduced by
[a] Roll crossing
[b] Roll crowning
[c] Roll bending
[d] All of these
Answer : D
57] The role of a plug in a plug-assisted thermoforming is to help
[a] Maintain uniform thickness
[b] Permit deep drawing
[c] Both of these
[d] None of these
Answer : C
58] In a Banbury the rotors can be
[a] Intermeshing
[b] Non-intermeshing
[c] Both of these
[d] None of these
Answer : [cancelled by Kerala PSC]
59] Which of the following is not good for thermoforming?
[a] PP
[b] PE
[c] PF
[d] PS
Answer : C
60] Which of the following is the best for uniform filler dispersion?
[a] Two roll mill
[b] Banbury
[c] Intermix
[d] Kneader
Answer : A
61] Viscosity has the unit
[a] Pa. S
[b] N / sq. m
[c] Mpa
[d] dN.m.s
Answer : A
62] Decrease of viscosity with increasing shear rate is known as
[a] Newtonian behaviour
[b] Bingham plastics
[c] Dilatant behaviour
[d] Pseudoplastic behaviour
Answer : D
63] The unit of shear rate is
[a] meter per second
[b] Per second
[c] meter per second square
[d] Newton per second
Answer : B
64] Yield stress is shown by
[a] Pseudoplastic materials
[b] Dilatant materials
[c] Bingham plastics
[d] Newtonian liquids
Answer : C
65] Thixotropy is associated with reduction in viscosity
[a] With time at constant shear rate
[b] With shear rate
[c] With time and shear rate
[d] With shear stress
Answer : A
66] In rheology relaxation time is defined as
[a] Viscosity / modulus
[b] Modulus / yield stress
[c] Time for 50% reduction in viscosity
[d] Time for extrudate to recover
Answer : A
67] Bagley correction is done to account for
[a] Exit effect
[b] Slip at wall
[c] Stick-slip effect
[d] Entry effect
Answer : D
68] Apparent shear rate for a capillary flow is related to
[a] Volume flow rate and l/d ratio
[b] Volume flow rate and capillary diameter
[c] Shear stress and capillary diameter
[d] None of these
Answer : B
69] In an isometric creep curve
[a] Stress is plot against strain
[b] Strain is plotted against time
[c] Stress is plotted against log time
[d] Strain is plotted against log time
Answer : C
70] Which of the following involves the use of a rotor?
[a] MDR
[b] Mooney viscometer
[c] Rubber process analyzer
[d] All of these
Answer : B
71] The ply angle in radial tyres is close to ________ degrees.
[a] 37
[b] 45
[c] 55
[d] 90
Answer : D
72] Which of the following is a slow accelerator?
[a] DPG
[b] MBS
[c] MBTS
[d] MBT
Answer : A
73] Caprolactam disulphide is a
[a] Activator
[b] Monomer
[c] Sulphur donor
[d] Accelerator
Answer : C
74] Chemical mastication is operational after (deg. Centigrade)
[a] 100
[b] 120
[c] 140
[d] 150
Answer : B
75] Transmissibility is defined as
[a] Output amplitude / input amplitude
[b] Output frequency / input frequency
[c] Loss modulus / storage modulus
[d] None of these
Answer : A
76] For good vibration isolation
[a] Transmissibility must be > 1
[b] Natural frequency must be high
[c] Natural frequency must be low
[d] Damping must be high
Answer : C
77] DBP number is used to measure
[a] C black particle size
[b] C black surface area
[c] Surface functional group
[d] C black structure
Answer : D
78] BET method uses ________ gas to measure surface area.
[a] Oxygen
[b] Helium
[c] Nitrogen
[d] Argon
Answer : C
79] Si 69 is a
[a] Coupling agent
[b] Bonding agent
[c] Tackifier
[d] None of these
Answer : A
80] Azodicarbonamide is a
[a] Accelerator
[b] Blowing agent
[c] Peptizer
[d] Activator
Answer : B
81] The primary criterion for choosing blend components is
[a] Tg must be same
[b] Tg must be close
[c] Cohesive energy density > 1
[d] Solubility parameter must be close
Answer : D
82] Blend miscibility is studied using a
[a] DMA
[b] DSC
[c] Both of these
[d] None of these
Answer : C
83] Anisotropy is defined as
[a] Time dependent creep
[b] Strain dependent stress relaxation
[c] Temperature dependent modulus
[d] Direction dependent properties
Answer : D
84] In short fiber composite extrusion, fibers are oriented circumferentially in a
[a] Diverging die
[b] Converging die
[c] Capillary die
[d] Ribbon die
Answer : A
85] In blends UCST stands for
[a] Unit component surface thickness
[b] Upper critical solution temperature
[c] Unifiber composite sheet thickness
[d] None of these
Answer : B
86] Spherulites are related to
[a] Polymer composites
[b] Polymer blends
[c] Polymer crystals
[d] Polymer coatings
Answer : C
87] For a 70/30 NR/PE blend which phase morphology is more probable?
[a] NR is continuous phase
[b] PE is continuous phase
[c] They form IPN
[d] NR & PE form continuous phase
Answer : A
88] Which one has molecular level mixing?
[a] Blend
[b] Composite
[c] Alloy
[d] All of these
Answer : C
89] Which is a very commonly used fiber in tyre industry?
[a] Nylon 6
[b] Nylon 66
[c] PET
[d] Aramid
Answer : [cancelled by Kerala PSC]
90] The membrane on rubber particles is
[a] proteinic
[b] lipoproteinic
[c] phospholipoproteinic
[d] phosphoproteinic
Answer : C
91] Which of the following statements is true?
[a] TSC > DRC
[b] TSC < DRC
[c] TSC = DRC
[d] TSC-DRC < 1
Answer : A
92] Mechanical stability test is done on
[a] Latex
[b] Unvulcanised rubber
[c] Vulcanised rubber
[d] Aged rubber
Answer : A
93] The major metal present in sludge removed from latex is
[a] Fe
[b] Mg
[c] Mn
[d] None of these
Answer : B
94] Which of the following is a VFA?
[a] Stearic acid
[b] Acetic acid
[c] Palmitic acid
[d] Oleic acid
Answer : B
95] Which of the following cannot destabilize latex?
[a] Ammonia
[b] Acid
[c] Metal ion
[d] Positively charged electrode
Answer : A
96] Potassium oleate is used in NR foam manufacture as
[a] Foam stabilizer
[b] Activator
[c] Foam promoter
[d] Antioxidant
Answer : C
97] The foaming agent used in NR foam is
[a] DNPT
[b] Nitrogen
[c] Air
[d] All of these
Answer : C
98] For making thick walled dipped products the preferred method is
[a] Coacervant dipping
[b] Heat sensitised dipping
[c] Straight dipping
[d] Multiple dipping
Answer : B
99] In electrodeposition the rubber is deposited on
[a] Positive electrode
[b] Semi permeable membrane
[c] Negative electrode
[d] All of these
Answer : A
100] Average size of rubber particles in latex is
[a] 0.001 micron
[b] 0.01 micron
[c] 0.1 micron
[d] 1 micron
Answer : [cancelled by Kerala PSC]