LECTURER IN POLYMER TECHNOLOGY – POLYTECHNICS – TECHNICAL EDUCATiON

PROVISIONAL ANSWER KEY
Question Paper Code: 31/2015/OL
Category Code: 060/2014
Exam: Lecturer in Polymer Technology
Medium of Question: English
Date of Test 30-11-2015
Alphacode A
Question1:-The concept of Directive Principles of State Policy in Indian Constitution was borrowed from
A:-Britain
B:-Ireland
C:-Canada
D:-Russia
Correct Answer:- Option-B
Question2:-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
Correct Answer:- Option-D
Question3:-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
Correct Answer:- Option-A
Question4:-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
Correct Answer:- Option-D
Question5:-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
Correct Answer:- Option-A
Question6:-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
Correct Answer:- Option-B
Question7:-The founding father of Modern Singapore
A:-Goh Chok Tong
B:-Lee Hsien Loong
C:-Mao Zedong
D:-Lee Kuan Yew
Correct Answer:- Option-D
Question8:-Which city will host the 2016 World Summer Olympics?
A:-Rio de Janeiro
B:-Tokyo
C:-Beijing
D:-London
Correct Answer:- Option-A
Question9:-The first Vice Chairman of newly constituted NITI Aayog was
A:-Narendra Modi
B:-Arvind Panagariya
C:-Arun Jaitley
D:-Suresh Prabhu
Correct Answer:- Option-B
Question10:-The Good Will Ambassador of 35th National Games in India
A:-P.T. Usha
B:-Anju Bobby George
C:-Sachin Tendulkar
D:-Preeja Sreedharan
Correct Answer:- Option-C
Question11:-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
Correct Answer:- Option-D
Question12:-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
Correct Answer:- Option-A
Question13:-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
Correct Answer:- Option-B
Question14:-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
Correct Answer:- Option-D
Question15:-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
Correct Answer:- Option-B
Question16:-The first annual session of S.N.D.P. Yogam held at
A:-Sivagiri
B:-Cherai
C:-Aruvipuram
D:-Paravur
Correct Answer:- Option-C
Question17:-The founder of Islam Dharma Paripalana Sangham was
A:-Vakkom Abdul Khadar Maulavi
B:-Vaikom Muhammad Basheer
C:-Rama Krishna Pillai
D:-Makthi Thangal
Correct Answer:- Option-A
Question18:-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
Correct Answer:- Option-C
Question19:-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
Correct Answer:- Option-B
Question20:-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
Correct Answer:- Option-A
Question21:-Which of the following is a trifunctional monomer?
A:-Propylene
B:-Butadiene
C:-Glycerol
D:-Glycol
Correct Answer:- Option-C
Question22:-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
Correct Answer:- Option-A
Question23:-Below the glass transition temperature the free volume is
A:-Maximum
B:-Zero
C:-One
D:-Minimum
Correct Answer:- Option-D
Question24:-Which of the following is a first order process?
A:-Solidification
B:-Vapourization
C:-Melting
D:-All of these
Correct Answer:- Option-D
Question25:-Glass transition temperature of polyisoprene is
A:-Below room temperature
B:-Above room temperature
C:-Zero
D:-None of these
Correct Answer:- Option-A
Question26:-A SBR is an example of
A:-Graft copolymer
B:-Random copolymer
C:-Block copolymer
D:-Homopolymer
Correct Answer:- Option-B
Question27:-Hilderbrand is the unit of
A:-Flory interaction parameter
B:-Enthalpy
C:-Solubility parameter
D:-None of these
Correct Answer:- Option-C
Question28:-For a polymer prepared by free radical polymerization
A:-Mw > Mn
B:-Mw < Mn C:-Mz < Mn D:-Mn = Mw = Mz Correct Answer:- Option-A Question29:-Polydispersity index is said to be 1 when A:-Mw = Mn B:-Mw > Mz
C:-Mz > Mz+1
D:-None of these
Correct Answer:- Option-A
Question30:-In emulsion polymerization technique, the polymerization takes place in
A:-Water phase
B:-Monomer phase
C:-Water/Monomer interphase
D:-Micelle
Correct Answer:- Option-B
Question31:-Thermoplastic polyurethane is a
A:-Thermoplastic
B:-Elastomer
C:-Thermoplastic elastomer
D:-Thermoset
Correct Answer:- Option-C
Question32:-For EPDM the unsaturation is in the
A:-Main chain
B:-Branches
C:-Pendent groups
D:-All of these
Correct Answer:- Option-C
Question33:-The monomers of butyl rubber are
A:-Butadiene and isoprene
B:-Butadiene and 1-butene
C:-Isoprene and 1-butene
D:-None of these
Correct Answer:- Option-A
Question34:-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
Correct Answer:- Option-B
Question35:-The EPM is not cured by
A:-Sulphur
B:-Peroxide
C:-Radiation
D:-Oxime
Correct Answer:- Option-A
Question36:-Fluorocarbons are known for
A:-High temperature resistance
B:-Ozone resistance
C:-Oil resistance
D:-All of these
Correct Answer:- Option-D
Question37:-Nylon 66 melts at (deg C)
A:-219
B:-249
C:-269
D:-289
Correct Answer:- Option-C
Question38:-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
Correct Answer:- Option-D
Question39:-Neoprene is commonly cured with
A:-Sulphur
B:-Metal oxide
C:-Peroxide
D:-Radiation
Correct Answer:- Option-B
Question40:-An example of amorphous polymer is
A:-UPVC
B:-PMMA
C:-Polystyrene
D:-All of these
Correct Answer:- Option-D
Question41:-For polymer containing OH group a major absorption peak is expected at (wave number)
A:-3400
B:-3000
C:-2450
D:-1700
Correct Answer:- Option-A
Question42:-Which of the following is commonly use to estimate crystallinity?
A:-NMR
B:-TGA
C:-X ray
D:-TMA
Correct Answer:- Option-C
Question43:-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
Correct Answer:- Option-A
Question44:-The angle of oscillation in MDR is (degrees)
A:-2.0
B:-0.2
C:-3.0
D:-360
Correct Answer:- Option-B
Question45:-Resilience is inversely related to
A:-Compression set
B:-Heat build up
C:-Tension set
D:-All of these
Correct Answer:- Option-D
Question46:-Tear strength is optimum at
A:-Optimum cure
B:-Slight under cure
C:-Slight over cure
D:-None of these
Correct Answer:- Option-B
Question47:-A high value of tan delta indicates
A:-good traction
B:-good mileage
C:-low heat build up
D:-All of these
Correct Answer:- Option-A
Question48:-Which rubber gives high tear resistance?
A:-PBD
B:-SBR
C:-IIR
D:-NR
Correct Answer:- Option-D
Question49:-A DSC can measure
A:-Heat capacity
B:-Glass transition temperature
C:-Melting point
D:-All of these
Correct Answer:- Option-D
Question50:-Compression set at constant stress is measured using
A:-Constant load
B:-Constant strain
C:-Variable strain
D:-Variable temperature
Correct Answer:- Option-C
Question51:-A parison is used in
A:-Blow moulding
B:-Transfer moulding
C:-Compression moulding
D:-None of these
Correct Answer:- Option-A
Question52:-PET is not used in extrusion blow moulding because
A:-High viscosity
B:-High die swell
C:-Low melt strength
D:-Shark skin effect
Correct Answer:- Option-C
Question53:-Which of the following is amenable to reaction injection moulding?
A:-PET
B:-TPU
C:-NYLON
D:-PU
Correct Answer:- Option-D
Question54:-RRIM is used when
A:-Good strength is needed
B:-Fast reaction is needed
C:-High volume output is needed
D:-None of these
Correct Answer:- Option-A
Question55:-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
Correct Answer:- Option-C
Question56:-The effect of roll bending in calendaring operation is reduced by
A:-Roll crossing
B:-Roll crowning
C:-Roll bending
D:-All of these
Correct Answer:- Option-D
Question57:-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
Correct Answer:- Option-C
Question58:-In a Banbury the rotors can be
A:-Intermeshing
B:-Non-intermeshing
C:-Both of these
D:-None of these
Correct Answer:- Option-B
Question59:-Which of the following is not good for thermoforming?
A:-PP
B:-PE
C:-PF
D:-PS
Correct Answer:- Option-C
Question60:-Which of the following is the best for uniform filler dispersion?
A:-Two roll mill
B:-Banbury
C:-Intermix
D:-Kneader
Correct Answer:- Option-A
Question61:-Viscosity has the unit
A:-Pa. S
B:-N / sq. m
C:-Mpa
D:-dN.m.s
Correct Answer:- Option-A
Question62:-Decrease of viscosity with increasing shear rate is known as
A:-Newtonian behaviour
B:-Bingham plastics
C:-Dilatant behaviour
D:-Pseudoplastic behaviour
Correct Answer:- Option-D
Question63:-The unit of shear rate is
A:-meter per second
B:-Per second
C:-meter per second square
D:-Newton per second
Correct Answer:- Option-B
Question64:-Yield stress is shown by
A:-Pseudoplastic materials
B:-Dilatant materials
C:-Bingham plastics
D:-Newtonian liquids
Correct Answer:- Option-C
Question65:-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
Correct Answer:- Option-A
Question66:-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
Correct Answer:- Option-A
Question67:-Bagley correction is done to account for
A:-Exit effect
B:-Slip at wall
C:-Stick-slip effect
D:-Entry effect
Correct Answer:- Option-D
Question68:-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
Correct Answer:- Option-B
Question69:-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
Correct Answer:- Option-C
Question70:-Which of the following involves the use of a rotor?
A:-MDR
B:-Mooney viscometer
C:-Rubber process analyzer
D:-All of these
Correct Answer:- Option-B
Question71:-The ply angle in radial tyres is close to ________ degrees.
A:-37
B:-45
C:-55
D:-90
Correct Answer:- Option-D
Question72:-Which of the following is a slow accelerator?
A:-DPG
B:-MBS
C:-MBTS
D:-MBT
Correct Answer:- Option-A
Question73:-Caprolactam disulphide is a
A:-Activator
B:-Monomer
C:-Sulphur donor
D:-Accelerator
Correct Answer:- Option-C
Question74:-Chemical mastication is operational after (deg. Centigrade)
A:-100
B:-120
C:-140
D:-150
Correct Answer:- Option-B
Question75:-Transmissibility is defined as
A:-Output amplitude / input amplitude
B:-Output frequency / input frequency
C:-Loss modulus / storage modulus
D:-None of these
Correct Answer:- Option-A
Question76:-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
Correct Answer:- Option-C
Question77:-DBP number is used to measure
A:-C black particle size
B:-C black surface area
C:-Surface functional group
D:-C black structure
Correct Answer:- Option-D
Question78:-BET method uses ________ gas to measure surface area.
A:-Oxygen
B:-Helium
C:-Nitrogen
D:-Argon
Correct Answer:- Option-C
Question79:-Si 69 is a
A:-Coupling agent
B:-Bonding agent
C:-Tackifier
D:-None of these
Correct Answer:- Option-A
Question80:-Azodicarbonamide is a
A:-Accelerator
B:-Blowing agent
C:-Peptizer
D:-Activator
Correct Answer:- Option-B
Question81:-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
Correct Answer:- Option-D
Question82:-Blend miscibility is studied using a
A:-DMA
B:-DSC
C:-Both of these
D:-None of these
Correct Answer:- Option-C
Question83:-Anisotropy is defined as
A:-Time dependent creep
B:-Strain dependent stress relaxation
C:-Temperature dependent modulus
D:-Direction dependent properties
Correct Answer:- Option-D
Question84:-In short fiber composite extrusion, fibers are oriented circumferentially in a
A:-Diverging die
B:-Converging die
C:-Capillary die
D:-Ribbon die
Correct Answer:- Option-A
Question85:-In blends UCST stands for
A:-Unit component surface thickness
B:-Upper critical solution temperature
C:-Unifiber composite sheet thickness
D:-None of these
Correct Answer:- Option-B
Question86:-Spherulites are related to
A:-Polymer composites
B:-Polymer blends
C:-Polymer crystals
D:-Polymer coatings
Correct Answer:- Option-C
Question87:-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
Correct Answer:- Option-A
Question88:-Which one has molecular level mixing?
A:-Blend
B:-Composite
C:-Alloy
D:-All of these
Correct Answer:- Option-C
Question89:-Which is a very commonly used fiber in tyre industry?
A:-Nylon 6
B:-Nylon 66
C:-PET
D:-Aramid
Correct Answer:- Option-B
Question90:-The membrane on rubber particles is
A:-proteinic
B:-lipoproteinic
C:-phospholipoproteinic
D:-phosphoproteinic
Correct Answer:- Option-C
Question91:-Which of the following statements is true?
A:-TSC > DRC
B:-TSC < DRC C:-TSC = DRC D:-TSC-DRC < 1 Correct Answer:- Option-A Question92:-Mechanical stability test is done on A:-Latex B:-Unvulcanised rubber C:-Vulcanised rubber D:-Aged rubber Correct Answer:- Option-A Question93:-The major metal present in sludge removed from latex is A:-Fe B:-Mg C:-Mn D:-None of these Correct Answer:- Option-B Question94:-Which of the following is a VFA? A:-Stearic acid B:-Acetic acid C:-Palmitic acid D:-Oleic acid Correct Answer:- Option-B Question95:-Which of the following cannot destabilize latex? A:-Ammonia B:-Acid C:-Metal ion D:-Positively charged electrode Correct Answer:- Option-A Question96:-Potassium oleate is used in NR foam manufacture as A:-Foam stabilizer B:-Activator C:-Foam promoter D:-Antioxidant Correct Answer:- Option-C Question97:-The foaming agent used in NR foam is A:-DNPT B:-Nitrogen C:-Air D:-All of these Correct Answer:- Option-C Question98:-For making thick walled dipped products the preferred method is A:-Coacervant dipping B:-Heat sensitised dipping C:-Straight dipping D:-Multiple dipping Correct Answer:- Option-B Question99:-In electrodeposition the rubber is deposited on A:-Positive electrode B:-Semi permeable membrane C:-Negative electrode D:-All of these Correct Answer:- Option-A Question100:-Average size of rubber particles in latex is A:-0.001 micron B:-0.01 micron C:-0.1 micron D:-1 micron Correct Answer:- Option-C