173 + Interview Questions in High Polymers And Plastics in Applied Chemistry Page 2 InterviewSolution

51.	which of the following is not used as stabilizers in the suspension polymerisation?(a) Silica nano particles(b) n-Hexane(c) Heptane(d) n-isopropylacrylamideinI had been asked this question by my school teacher while I was bunking the class.I'm obligated to ask this question of Methods of Polymerization in portion High Polymers and Plastics of Applied Chemistry
Answer» The CORRECT CHOICE is (c) HEPTANE To elaborate: Heptane is not used as STABILIZERS in the suspension polymerisation. Silica nano PARTICLES, n-Hexane and n-isopropylacrylamidein are used as the stabilizers in suspension polymerisation.

Discussion

52.	How many types of methods of polymerization are there?(a) Two(b) Three(c) Four(d) FiveThe question was asked in homework.I'm obligated to ask this question of Methods of Polymerization topic in division High Polymers and Plastics of Applied Chemistry
Answer» The correct ANSWER is (a) Two The best I can EXPLAIN: There are two TYPES of methods of POLYMERIZATION. They are: 1. Emulsion polymerization and 2. suspension polymerization.

Discussion

53.	Initiators are __________ compounds.(a) Stable(b) Unstable(c) Partially stable(d) Highly stableI got this question during a job interview.I'd like to ask this question from Mechanism of Polymerization in division High Polymers and Plastics of Applied Chemistry
Answer» The correct OPTION is (B) Unstable Best explanation: Initiators are the unstable COMPOUNDS. For getting stability, they undergo homolytic FUSION to produce free radicals.

Discussion

54.	The chain polymerisation mechanism is _______(a) Slow(b) Very slow(c) Rapid(d) ModerateThe question was asked during an interview for a job.This is a very interesting question from Mechanism of Polymerization topic in division High Polymers and Plastics of Applied Chemistry
Answer» The correct answer is (C) Rapid To EXPLAIN: The chain POLYMERISATION MECHANISM is rapid. An initiator is required to start the polymerisation reaction.

Discussion

55.	The polymerisation takes place by __________ of the monomer molecules.(a) Addition(b) Self addition(c) Dissociation(d) CondensationI have been asked this question during an internship interview.Asked question is from Mechanism of Polymerization in chapter High Polymers and Plastics of Applied Chemistry
Answer» The CORRECT answer is (b) Self ADDITION The explanation: The polymerisation takes place by self addition of the MONOMER molecules to each other through the CHAIN polymerisation.

Discussion

56.	__________ are used in the air crafts.(a) Fibre rein forced plastics(b) BUNA- S(c) BUNA- N(d) ThiokolI got this question during an interview.Query is from Applications of Elastromers topic in portion High Polymers and Plastics of Applied Chemistry
Answer» Right option is (a) FIBRE rein forced plastics To explain I would SAY: The fibre rein forced plastics is used in the air crafts. They can be prepared in six TYPES. Matched METAL die moulding, injection moulding, hand lay up and continuous LAMINATION are some of them.

Discussion

57.	The gaskets can be made by __________(a) Gutta-percha(b) Nitrile rubber(c) Thiokol rubber(d) BUNA – SI had been asked this question during an interview.This key question is from Synthetic Rubber topic in chapter High Polymers and Plastics of Applied Chemistry
Answer» Right answer is (c) THIOKOL rubber Easy explanation: The gaskets can be made by the thiokol rubber. It is made of SEALS for PRINTING rolls. They are also used for LINING houses for conveying GASOLINE.

Discussion

58.	To produce the smoked rubber, the rubber sheets are hanged in smoked chambers at __________(a) 10-20^oC(b) 20-30^oC(c) 30-40^oC(d) 40-50^oCThe question was asked during an interview.This interesting question is from Natural Rubber topic in portion High Polymers and Plastics of Applied Chemistry
Answer» The correct answer is (d) 40-50^oC Explanation: To produce the smoked RUBBER, the rubber sheets are HANGED in smoked CHAMBERS at 40-50^oC for FOUR days.

Discussion

59.	In transfer moulding the powdered compounded plastic is in the chamber which is applied __________ temperature and ________ pressure.(a) High, low(b) Low, high(c) Minimum, high(d) Maximum, highThe question was posed to me in a national level competition.I'm obligated to ask this question of Compounding of Plastics in chapter High Polymers and Plastics of Applied Chemistry
Answer» The correct choice is (c) MINIMUM, HIGH Easy explanation: In TRANSFER moulding the powdered compounded PLASTIC is in the chamber which is APPLIED minimum temperature and high pressure.

Discussion

60.	The cost of production for the injection moulding is ___________(a) High(b) Low(c) Moderate(d) Very highI had been asked this question during a job interview.This interesting question is from Compounding of Plastics in section High Polymers and Plastics of Applied Chemistry
Answer» Right choice is (b) Low Best explanation: TH COST of the PRODUCTION for the injection moulding is low. It has HIGH speed production. Loss of the materials will be less.

Discussion

61.	__________ makes the polymers impermeable to x-rays.(a) Strontium salts(b) Ammonium salts(c) Calcium salts(d) Barium saltsI had been asked this question in an internship interview.My enquiry is from Compounding of Plastics in chapter High Polymers and Plastics of Applied Chemistry
Answer» Right answer is (d) Barium salts For explanation I would say: The barium salts MAKES the polymers IMPERMEABLE to x-rays and ASBESTOS provides HEAT and corrosion RESISTANCE to polymers.

Discussion

62.	Plastic resin is used in the paint industry as _________(a) Catalyst(b) Ion exchanger(c) Inhibitor(d) CoolantThis question was posed to me in an interview for internship.Question is taken from Plastics topic in section High Polymers and Plastics of Applied Chemistry
Answer» Correct CHOICE is (B) Ion exchanger Explanation: Plastic is used in the paint industry as the ion exchanger in PURIFICATION of the water for boilers and as good building MATERIALS.

Discussion

63.	As the crystallinity increases The brittleness of the polymer _________(a) Increases(b) Decreases(c) Moderate(d) Remains constantThe question was asked during an interview for a job.The question is from Properties of Polymers in chapter High Polymers and Plastics of Applied Chemistry
Answer» CORRECT answer is (B) Decreases Explanation: As the crystallinity of the POLYMER increases then the brittleness of the polymer ALSO increases. The strength and chemical resistance of the POLYMERS also increases.

Discussion

64.	The emulsion polymerisation can be mainly for the typical monomers which undergo ____________(a) Ziegler-natta polymerisation(b) Condensation polymerisation(c) Chain radical polymerisation(d) Co-ordination polymerisationI had been asked this question at a job interview.The query is from Methods of Polymerization in chapter High Polymers and Plastics of Applied Chemistry
Answer» Correct option is (c) Chain RADICAL polymerisation To explain I would say: The emulsion polymerisation is the METHOD APPLIED to the typical MONOMERS that UNDERGOES the chain radical polymerisation. The co-ordination polymerisation and the Ziegler-natta polymerisation are same.

Discussion

65.	The condensation polymerisation is the __________ process.(a) Slow(b) Very slow(c) Fast(d) Very fastThis question was posed to me in my homework.I need to ask this question from Mechanism of Polymerization topic in chapter High Polymers and Plastics of Applied Chemistry
Answer» Right choice is (a) SLOW Explanation: The condensation POLYMERISATION is the slow PROCESS. It is a step wise process. The monomers must be dibasic ACIDS, DIOLS, diamines or triols.

Discussion

66.	The poly sulphide rubber is resistant to __________(a) Ozone(b) Oils(c) Chemicals(d) NitrogenI have been asked this question in examination.This interesting question is from Synthetic Rubber in chapter High Polymers and Plastics of Applied Chemistry
Answer» Correct choice is (a) Ozone Best explanation: The poly sulphide RUBBER is RESISTANT to the ozone. It is also resistance to the mineral OILS, fuels, solvents, OXYGEN and sunlight.

Discussion

67.	BUNA- S is a __________(a) Electrical insulator(b) Electrical conductor(c) Semi conductor(d) Conducts only at a certain temperatureThis question was posed to me in an international level competition.Question is taken from Synthetic Rubber topic in portion High Polymers and Plastics of Applied Chemistry
Answer» Correct ANSWER is (a) ELECTRICAL INSULATOR To elaborate: BUNA – S is a good electrical insulator. Butadiene is produced from the acetaldehyde and ETHYL alcohol.

Discussion

68.	The latex is diluted to _________ and filtered to remove suspended impurities.(a) 5-10%(b) 10-15%(c) 15-20%(d) 20-25%The question was asked in semester exam.This is a very interesting question from Natural Rubber topic in portion High Polymers and Plastics of Applied Chemistry
Answer» The CORRECT option is (c) 15-20% EASIEST explanation: The latex is diluted to 15-20% and FILTERED to remove suspended impurities LIKE pieces of bark, leaves etc.

Discussion

69.	Isoprene in natural rubber exists in ___________ geometrical isomeric forms.(a) 2(b) 3(c) 4(d) 5I had been asked this question during an interview.I'm obligated to ask this question of Natural Rubber in chapter High Polymers and Plastics of Applied Chemistry
Answer» The correct answer is (a) 2 To elaborate: Isoprene in natural RUBBER exists in two GEOMETRICAL ISOMERIC FORMS. They are cis-isoprene and trans-isoprene.

Discussion

70.	The article in the transfer moulding are __________(a) Cured very fast(b) Cured incompletely(c) Cured uniformly(d) Cured moderatelyThis question was posed to me during an interview.My query is from Compounding of Plastics in division High Polymers and Plastics of Applied Chemistry
Answer» The correct choice is (c) Cured UNIFORMLY To elaborate: The article in the transfer moulding are cured uniformly. They are cured SLOWLY and completely. The ARTICLES are free from flow MARKS and THICK pieces.

Discussion

71.	The soft and semi solid plastic is injected into mould by _________(a) Orifice(b) Nozzle(c) Hinge(d) PlungerThis question was posed to me in a national level competition.Origin of the question is Compounding of Plastics in division High Polymers and Plastics of Applied Chemistry
Answer» Correct option is (d) Plunger Best explanation: Plunger is used to inject the soft and SEMI solid PLASTIC to WORK at HIGH pressure DUE to the high friction at nozzle.

Discussion

72.	How many types of fabrication methods are there?(a) 4(b) 5(c) 6(d) 7I got this question during a job interview.I would like to ask this question from Compounding of Plastics topic in section High Polymers and Plastics of Applied Chemistry
Answer» The correct OPTION is (d) 7 The explanation is: There are seven types of fabrication methods are there. They are compression moulding, INJECTION moulding, transfer moulding, EXTRUSION moulding, BUBBLE moulding, casting and thermoforming.

Discussion

73.	Which of the following can be produced using suspension polymerisation?(a) Poly methyl methacrylate(b) BUNA -S(c) Teflon(d) PolyethyleneThe question was asked during an interview for a job.This intriguing question comes from Methods of Polymerization topic in chapter High Polymers and Plastics of Applied Chemistry
Answer» Correct choice is (a) Poly METHYL methacrylate Easiest EXPLANATION: The poly methyl methacrylate, polyvinyl chloride and HIGH IMPACT polystyrene can be PRODUCED by using the suspension polymerisation.

Discussion

74.	The __________ of the inhibitor result in the cationic chain polymerisation.(a) Homolytic fusion(b) Partially homolytic fusion(c) Heterolytic fusion(d) Partially heterolytic fusionThe question was posed to me in semester exam.My question comes from Mechanism of Polymerization topic in portion High Polymers and Plastics of Applied Chemistry
Answer» Right answer is (c) Heterolytic FUSION The best EXPLANATION: The heterolytic fusion of the INITIATOR results in the CATIONIC chain polymerisation and homolytic fusion results in a FREE radical polymerisation.

Discussion

75.	The condensation polymerisation is ___________(a) Endothermic(b) Exothermic(c) Not exothermic(d) Neither endothermic nor exothermicThe question was asked by my college professor while I was bunking the class.I'm obligated to ask this question of Mechanism of Polymerization in portion High Polymers and Plastics of Applied Chemistry
Answer» The correct option is (c) Not exothermic Explanation: The condensation polymerisation is the not exothermic REACTION. It does not RELEASES HEAT during the reaction.

Discussion

76.	Addition polymerisation can be carried out in _________ mechanisms.(a) Two(b) Three(c) Four(d) FiveThe question was asked in my homework.My question comes from Mechanism of Polymerization in section High Polymers and Plastics of Applied Chemistry
Answer» The correct choice is (B) Three The best I can explain: ADDITION polymerisation can be carried out in three mechanisms. They are: 1 – free radical mechanism, 2 – IONIC mechanism, 3 – co-ordination mechanism.

Discussion

77.	Mechanism of polymerisation is classified into _______ types.(a) Two(b) Three(c) Four(d) FiveThis question was posed to me in class test.My question is based upon Mechanism of Polymerization in division High Polymers and Plastics of Applied Chemistry
Answer» CORRECT answer is (a) Two The best EXPLANATION: Mechanism of polymerisation is classified into two TYPES. They are CHAIN or addition polymerisation and the step or condensation polymerisation.

Discussion

78.	Combination of the organic and inorganic polymers are called _________(a) Element organic polymers(b) Inorganic polymers(c) Fibres(d) ThermoplasticsThis question was addressed to me in examination.This interesting question is from Types of Polymers in chapter High Polymers and Plastics of Applied Chemistry
Answer» Correct choice is (a) ELEMENT organic polymers The explanation: Combination of the organic and the INORGANIC polymers are CALLED as the element of organic polymers. It comes under the SYNTHETIC polymers because it is produced by the SYNTHESIS.

Discussion

79.	In BUNA – S, the BU stands for ________(a) Butadiene(b) Butane(c) Butaraldehyde(d) 3-Butanoic acidThis question was addressed to me by my school principal while I was bunking the class.This interesting question is from Synthetic Rubber in section High Polymers and Plastics of Applied Chemistry
Answer» The correct option is (a) Butadiene The explanation: In BUNA – S, the BU stands for Butadiene. The butadiene ACTS as the monomer. NA acts as catalyst that is SODIUM and S for styrene acts as monomer.

Discussion

80.	Diaper are made by __________(a) Polyhydroxy alkanoates(b) Poly lactic acid(c) Polyesters(d) ProteinsI got this question in unit test.The above asked question is from Applications of Elastromers topic in division High Polymers and Plastics of Applied Chemistry
Answer» CORRECT choice is (B) Poly lactic acid Best EXPLANATION: Poly lactic acids are used to make the DIAPERS, anchors, screws, pins, mesh, disposable garments, etc.

Discussion

81.	Poly vinyl acetate is used in _________(a) Agriculture(b) Food industry(c) Catering(d) Waste managementThis question was posed to me in my homework.This interesting question is from Applications of Elastromers topic in portion High Polymers and Plastics of Applied Chemistry
Answer» The correct choice is (b) FOOD industry For explanation I would say: POLY vinyl acetate is used in the food industry. The matter bi is used in the AGRICULTURE, catering and ALSO in the waste management.

Discussion

82.	While producing the crepe rubber, the coagulam is passed between two rollers of about _________ wide.(a) 3mm(b) 4mm(c) 50cm(d) 100cmThe question was asked during an interview.The query is from Natural Rubber in portion High Polymers and Plastics of Applied Chemistry
Answer» Correct option is (c) 50cm Explanation: The COAGULAM is passed in between the two rollers of about 3MM apart and 50cm wide and extruded in the form of a sheet which RESEMBLE the crepe PAPER, which POSSESS rough surface.

Discussion

83.	The temporary deformation of rubber takes place after applying the _______ stress.(a) 600e.u(b) More than 600e.u(c) 500e.u(d) more than 500e.uI have been asked this question in homework.My query is from Natural Rubber in portion High Polymers and Plastics of Applied Chemistry
Answer» Right choice is (b) More than 600e.u Explanation: The temporary deformation of the rubber takes place after APPLYING the stress around more than 600e.u. when the stress is APPLIED the CHAINS GET PARTIALLY aligns with respect to the other.

Discussion

84.	Extrusion moulding is for __________(a) Thermo plastic resins(b) Thermo setting resins(c) Both thermo plastic and thermo setting resins(d) Neither thermo plastic nor thermo setting resinsI got this question in final exam.The origin of the question is Compounding of Plastics topic in division High Polymers and Plastics of Applied Chemistry
Answer» CORRECT option is (a) Thermo plastic RESINS Easiest explanation: EXTRUSION moulding is the method that is applied to the thermo plastic resins to MAKE articles of UNIFORM cross section like tubes, rods, sheets, etc.

Discussion

85.	Thermo setting resins are __________(a) Soft(b) Hard(c) Weak(d) Less brittleThis question was addressed to me in an internship interview.My question is taken from Plastics in section High Polymers and Plastics of Applied Chemistry
Answer» The CORRECT answer is (B) Hard Easy EXPLANATION: THERMO SETTING resins are hard. They are strong in nature and they are more brittle.

Discussion

86.	The initiators used in the emulsion polymerisation is __________(a) Dibenzyl peroxide(b) Per-sulphates(c) n-hexane(d) Silica nano particlesI have been asked this question by my school teacher while I was bunking the class.This interesting question is from Methods of Polymerization in chapter High Polymers and Plastics of Applied Chemistry
Answer» CORRECT choice is (B) Per-sulphates The explanation: The The INITIATORS used in the emulsion polymerisation METHOD must be soluble in WATER. Some of the water soluble chemicals that can be used as initiators are per-sulphates and peroxides.

Discussion

87.	In how many steps the mechanism of the chain polymerisation is carried out?(a) Two(b) Three(c) Four(d) FiveThe question was asked during a job interview.Question is taken from Mechanism of Polymerization topic in chapter High Polymers and Plastics of Applied Chemistry
Answer» Right answer is (b) Three Easy explanation: The MECHANISM of the chain POLYMERISATION is carried out in three steps. They are 1. initiation, 2. PROPAGATION and 3. termination.

Discussion

88.	Excess surfactant in water creates ___________(a) Micelle(b) Monomer(c) Emulsifying agent(d) EmulsifierThis question was posed to me in an online interview.This is a very interesting question from Methods of Polymerization in division High Polymers and Plastics of Applied Chemistry
Answer» CORRECT choice is (a) Micelle To explain: Excess SURFACTANT in water creates the micelle in water. Hydrophilic part of the surfactant molecule faces OUTSIDE towards water forminga DROPLET ENTRAPPING the monomer.

Discussion

89.	Catering is done by the ________(a) MATER BI(b) Teflon(c) Dacron(d) Poly lactic acidThe question was asked in an interview.This intriguing question comes from Applications of Elastromers in chapter High Polymers and Plastics of Applied Chemistry
Answer» Correct option is (a) MATER BI The best explanation: CATERING is done by the MATTER BI. It is very STRONG. Catering means the making of THINGS like cutlery, plates, cups, ETC.

Discussion

90.	Styrene rubber is vulcanised by ___________(a) Sulphurous oxide(b) Sulphur mono chloride(c) Sulphur-di-oxide(d) CarbonThe question was asked in a national level competition.This intriguing question originated from Synthetic Rubber in division High Polymers and Plastics of Applied Chemistry
Answer» The correct CHOICE is (b) Sulphur mono chloride Explanation: Styrene RUBBER is vulcanised by sulphur mono chloride or sulphur. It resembles natural rubber in processing CHARACTERISTICS and QUALITY of FINISHED products.

Discussion

91.	_________ are used in the data storage.(a) Bakelite(b) TEFLON(c) Poly carbonates(d) PolyethyleneThis question was addressed to me in exam.I'm obligated to ask this question of Preparation, Properties and Applications of Some Compounds topic in section High Polymers and Plastics of Applied Chemistry
Answer» CORRECT choice is (c) POLY CARBONATES Easy EXPLANATION: Poly carbonates are used in the data storage. They are used in the PRODUCTION of compact discs and bluray discs as well as DVD’s.

Discussion

92.	In thermo plastic resins the force of attraction can be break easily by ____________(a) Heat(b) Pressure(c) Both heat and pressure(d) Neither heat nor pressureI got this question during an online exam.Question is taken from Plastics in division High Polymers and Plastics of Applied Chemistry
Answer» Right CHOICE is (c) Both HEAT and pressure Easiest explanation: In thermo plastic resins the FORCE of attraction can be break easily by both the heat and pressure. These can be RESHAPED but the thermo setting resins cannot be reshaped.

Discussion

93.	The functional group are arranged on the same side of the carbon back bone are said to be _________(a) Syndiotactic polymers(b) Atactic polymers(c) Isotactic polymers(d) Chain polymersThis question was posed to me during an online exam.I would like to ask this question from Types of Polymers topic in section High Polymers and Plastics of Applied Chemistry
Answer» CORRECT choice is (c) ISOTACTIC polymers For explanation: The functional groups arranged on the same SIDE of the carbon BACK bone then it is isotactic polymer, if they no regular arrangement then they are said to be Atactic polymers.

Discussion

94.	TEFLON has _________(a) High melting point(b) Low melting point(c) Low density(d) Good conduction of electricityThis question was addressed to me in a national level competition.My doubt is from Preparation, Properties and Applications of Some Compounds in portion High Polymers and Plastics of Applied Chemistry
Answer» The correct answer is (a) High MELTING point Easiest explanation: TEFLON has a high melting point, high density and it is the bad conductor of ELECTRICITY as it is an INSULATOR.

Discussion

95.	Polyurethanes are _________(a) Good conductors(b) Good insulators(c) Having no tensile strength(d) Affected by heatThe question was posed to me in examination.My question is from Preparation, Properties and Applications of Some Compounds topic in section High Polymers and Plastics of Applied Chemistry
Answer» CORRECT choice is (b) Good insulators To elaborate: Polyurethanes are having the good insulating properties. They are having tensile STRENGTH and they are RESISTANT to environment CONDITIONS like heat, moisture, etc.

Discussion

96.	Polyurethanes are in the class of compounds __________(a) Reaction polymers(b) Chain polymers(c) Branched polymers(d) Linear polymersI got this question by my college professor while I was bunking the class.This interesting question is from Preparation, Properties and Applications of Some Compounds in portion High Polymers and Plastics of Applied Chemistry
Answer» The CORRECT option is (a) Reaction polymers Explanation: Polyurethanes are in the class of COMPOUNDS CALLED reaction polymers which INCLUDE in epoxies, polyesters and phenolics.

Discussion

97.	Poly vinyl chloride is a __________(a) Blue coloured compound(b) Inflammable(c) Weak(d) BrittleThis question was addressed to me during an interview.Query is from Preparation, Properties and Applications of Some Compounds topic in portion High Polymers and Plastics of Applied Chemistry
Answer» CORRECT OPTION is (d) BRITTLE Best explanation: Poly vinyl chloride is a colourless, non-inflammableand chemically INERT in nature. It is strong and brittle.

Discussion

98.	Polyethylene is a ___________(a) Bad conductor(b) Transparent(c) Polar material(d) High symmetrical structureThis question was posed to me in exam.My query is from Preparation, Properties and Applications of Some Compounds in chapter High Polymers and Plastics of Applied Chemistry
Answer» Right answer is (d) High symmetrical STRUCTURE For explanation I would say: Polyethylene is a rigid, waxy white, translucent, non-polar MATERIAL, with high symmetrical structure. It is a good electrical INSULATOR.

Discussion

99.	Blowing otherwise called as _________(a) Air blow technique(b) Bubbling(c) Bubble casting(d) Bubble blowingThe question was asked by my school principal while I was bunking the class.This key question is from Compounding of Plastics in division High Polymers and Plastics of Applied Chemistry
Answer» Right OPTION is (C) Bubble casting The best I can explain: BLOWING otherwise called as the bubble casting. It is used for the fabricating HOLLOW PLASTIC articles like soft drink bottles etc.

Discussion

100.	___________ is used to improve the thermal stability during polymerisation.(a) Accelerators(b) Colouring materials(c) Stabilizers(d) LubricantsThis question was addressed to me in an interview for internship.My question is from Compounding of Plastics topic in portion High Polymers and Plastics of Applied Chemistry
Answer» RIGHT choice is (c) Stabilizers The best explanation: Stabilizers are used to IMPROVE the thermal stability during polymerisation. Accelerators are used to increase the polymerisation of FUSION resin during MODULATION OPERATION into linked infusible form.

Discussion

Explore topic-wise InterviewSolutions in .

How many types of methods of polymerization are there?(a) Two(b) Three(c) Four(d) FiveThe question was asked in homework.I'm obligated to ask this question of Methods of Polymerization topic in division High Polymers and Plastics of Applied Chemistry

Initiators are __________ compounds.(a) Stable(b) Unstable(c) Partially stable(d) Highly stableI got this question during a job interview.I'd like to ask this question from Mechanism of Polymerization in division High Polymers and Plastics of Applied Chemistry

The chain polymerisation mechanism is _______(a) Slow(b) Very slow(c) Rapid(d) ModerateThe question was asked during an interview for a job.This is a very interesting question from Mechanism of Polymerization topic in division High Polymers and Plastics of Applied Chemistry

__________ are used in the air crafts.(a) Fibre rein forced plastics(b) BUNA- S(c) BUNA- N(d) ThiokolI got this question during an interview.Query is from Applications of Elastromers topic in portion High Polymers and Plastics of Applied Chemistry

The gaskets can be made by __________(a) Gutta-percha(b) Nitrile rubber(c) Thiokol rubber(d) BUNA – SI had been asked this question during an interview.This key question is from Synthetic Rubber topic in chapter High Polymers and Plastics of Applied Chemistry

To produce the smoked rubber, the rubber sheets are hanged in smoked chambers at __________(a) 10-20^oC(b) 20-30^oC(c) 30-40^oC(d) 40-50^oCThe question was asked during an interview.This interesting question is from Natural Rubber topic in portion High Polymers and Plastics of Applied Chemistry

The cost of production for the injection moulding is ___________(a) High(b) Low(c) Moderate(d) Very highI had been asked this question during a job interview.This interesting question is from Compounding of Plastics in section High Polymers and Plastics of Applied Chemistry

__________ makes the polymers impermeable to x-rays.(a) Strontium salts(b) Ammonium salts(c) Calcium salts(d) Barium saltsI had been asked this question in an internship interview.My enquiry is from Compounding of Plastics in chapter High Polymers and Plastics of Applied Chemistry

Plastic resin is used in the paint industry as _________(a) Catalyst(b) Ion exchanger(c) Inhibitor(d) CoolantThis question was posed to me in an interview for internship.Question is taken from Plastics topic in section High Polymers and Plastics of Applied Chemistry

As the crystallinity increases The brittleness of the polymer _________(a) Increases(b) Decreases(c) Moderate(d) Remains constantThe question was asked during an interview for a job.The question is from Properties of Polymers in chapter High Polymers and Plastics of Applied Chemistry

The condensation polymerisation is the __________ process.(a) Slow(b) Very slow(c) Fast(d) Very fastThis question was posed to me in my homework.I need to ask this question from Mechanism of Polymerization topic in chapter High Polymers and Plastics of Applied Chemistry

The poly sulphide rubber is resistant to __________(a) Ozone(b) Oils(c) Chemicals(d) NitrogenI have been asked this question in examination.This interesting question is from Synthetic Rubber in chapter High Polymers and Plastics of Applied Chemistry

The latex is diluted to _________ and filtered to remove suspended impurities.(a) 5-10%(b) 10-15%(c) 15-20%(d) 20-25%The question was asked in semester exam.This is a very interesting question from Natural Rubber topic in portion High Polymers and Plastics of Applied Chemistry

Isoprene in natural rubber exists in ___________ geometrical isomeric forms.(a) 2(b) 3(c) 4(d) 5I had been asked this question during an interview.I'm obligated to ask this question of Natural Rubber in chapter High Polymers and Plastics of Applied Chemistry

The article in the transfer moulding are __________(a) Cured very fast(b) Cured incompletely(c) Cured uniformly(d) Cured moderatelyThis question was posed to me during an interview.My query is from Compounding of Plastics in division High Polymers and Plastics of Applied Chemistry

The soft and semi solid plastic is injected into mould by _________(a) Orifice(b) Nozzle(c) Hinge(d) PlungerThis question was posed to me in a national level competition.Origin of the question is Compounding of Plastics in division High Polymers and Plastics of Applied Chemistry

How many types of fabrication methods are there?(a) 4(b) 5(c) 6(d) 7I got this question during a job interview.I would like to ask this question from Compounding of Plastics topic in section High Polymers and Plastics of Applied Chemistry

Addition polymerisation can be carried out in _________ mechanisms.(a) Two(b) Three(c) Four(d) FiveThe question was asked in my homework.My question comes from Mechanism of Polymerization in section High Polymers and Plastics of Applied Chemistry

Mechanism of polymerisation is classified into _______ types.(a) Two(b) Three(c) Four(d) FiveThis question was posed to me in class test.My question is based upon Mechanism of Polymerization in division High Polymers and Plastics of Applied Chemistry

In BUNA – S, the BU stands for ________(a) Butadiene(b) Butane(c) Butaraldehyde(d) 3-Butanoic acidThis question was addressed to me by my school principal while I was bunking the class.This interesting question is from Synthetic Rubber in section High Polymers and Plastics of Applied Chemistry

Diaper are made by __________(a) Polyhydroxy alkanoates(b) Poly lactic acid(c) Polyesters(d) ProteinsI got this question in unit test.The above asked question is from Applications of Elastromers topic in division High Polymers and Plastics of Applied Chemistry

Poly vinyl acetate is used in _________(a) Agriculture(b) Food industry(c) Catering(d) Waste managementThis question was posed to me in my homework.This interesting question is from Applications of Elastromers topic in portion High Polymers and Plastics of Applied Chemistry

While producing the crepe rubber, the coagulam is passed between two rollers of about _________ wide.(a) 3mm(b) 4mm(c) 50cm(d) 100cmThe question was asked during an interview.The query is from Natural Rubber in portion High Polymers and Plastics of Applied Chemistry

The temporary deformation of rubber takes place after applying the _______ stress.(a) 600e.u(b) More than 600e.u(c) 500e.u(d) more than 500e.uI have been asked this question in homework.My query is from Natural Rubber in portion High Polymers and Plastics of Applied Chemistry

Thermo setting resins are __________(a) Soft(b) Hard(c) Weak(d) Less brittleThis question was addressed to me in an internship interview.My question is taken from Plastics in section High Polymers and Plastics of Applied Chemistry

In how many steps the mechanism of the chain polymerisation is carried out?(a) Two(b) Three(c) Four(d) FiveThe question was asked during a job interview.Question is taken from Mechanism of Polymerization topic in chapter High Polymers and Plastics of Applied Chemistry

Excess surfactant in water creates ___________(a) Micelle(b) Monomer(c) Emulsifying agent(d) EmulsifierThis question was posed to me in an online interview.This is a very interesting question from Methods of Polymerization in division High Polymers and Plastics of Applied Chemistry

Catering is done by the ________(a) MATER BI(b) Teflon(c) Dacron(d) Poly lactic acidThe question was asked in an interview.This intriguing question comes from Applications of Elastromers in chapter High Polymers and Plastics of Applied Chemistry

Styrene rubber is vulcanised by ___________(a) Sulphurous oxide(b) Sulphur mono chloride(c) Sulphur-di-oxide(d) CarbonThe question was asked in a national level competition.This intriguing question originated from Synthetic Rubber in division High Polymers and Plastics of Applied Chemistry

_________ are used in the data storage.(a) Bakelite(b) TEFLON(c) Poly carbonates(d) PolyethyleneThis question was addressed to me in exam.I'm obligated to ask this question of Preparation, Properties and Applications of Some Compounds topic in section High Polymers and Plastics of Applied Chemistry

In thermo plastic resins the force of attraction can be break easily by ____________(a) Heat(b) Pressure(c) Both heat and pressure(d) Neither heat nor pressureI got this question during an online exam.Question is taken from Plastics in division High Polymers and Plastics of Applied Chemistry

Poly vinyl chloride is a __________(a) Blue coloured compound(b) Inflammable(c) Weak(d) BrittleThis question was addressed to me during an interview.Query is from Preparation, Properties and Applications of Some Compounds topic in portion High Polymers and Plastics of Applied Chemistry

Polyethylene is a ___________(a) Bad conductor(b) Transparent(c) Polar material(d) High symmetrical structureThis question was posed to me in exam.My query is from Preparation, Properties and Applications of Some Compounds in chapter High Polymers and Plastics of Applied Chemistry

Blowing otherwise called as _________(a) Air blow technique(b) Bubbling(c) Bubble casting(d) Bubble blowingThe question was asked by my school principal while I was bunking the class.This key question is from Compounding of Plastics in division High Polymers and Plastics of Applied Chemistry