607 + Mcqs in Polymer Technology Page 4 McqOptions

151.	/_Size range of polymer molecules varies from __________ metre.?
A.	10‚Äö√Ö¬™¬¨‚â§ to 10‚Äö√Ö¬™‚Äö√Ö¬µ
B.	10‚Äö√Ö¬™‚Äö√Ö¬• to 10‚Äö√Ö¬™‚Äö√Ö‚àë
C.	10‚Äö√Ö¬™¬¨œÄ to 10‚Äö√Ö¬™¬¨‚â§
D.	10‚Äö√Ö¬™‚Äö√Ö‚àè to 10‚Äö√Ö¬™¬¨œÄ‚Äö√Ö‚àû
Answer» B. 10‚Äö√Ö¬™‚Äö√Ö¬• to 10‚Äö√Ö¬™‚Äö√Ö‚àë

Discussion

152.	/_90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ ¬¨‚àûC.?
A.	-5
B.	10-30
C.	250-280
D.	500-600
Answer» D. 500-600

Discussion

153.	/___________ is a thermosetting plastic.?
A.	PVC
B.	Polythene
C.	Bakelite
D.	Polystyrene
Answer» D. Polystyrene

Discussion

154.	/_Styrene butadiene rubber (SBR) is never used for making?
A.	Coated fabrics
B.	Front wheel tyres of aeroplanes (i.e., heavy duty tyres)
C.	Gaskets
D.	Soles of shoes
Answer» C. Gaskets

Discussion

155.	/___________ polythene is most prone to stress-cracking?
A.	High density
B.	Low density
C.	Cross-linked
D.	Linear low density
Answer» B. Low density

Discussion

156.	/_Vinyl flooring is done using __________ sheets.?
A.	Polypropylene
B.	PVC
C.	Polythene
D.	Polyvinyl acetate
Answer» C. Polythene

Discussion

157.	/___________ scrap can be recycled & reutilised.?
A.	Bakelite
B.	Epoxy resin
C.	Polythene
D.	None of these
Answer» D. None of these

Discussion

158.	/_The main use of butadiene is?
A.	As a plasticiser for unsaturated polyester
B.	In the manufacture of synthetic rubber
C.	As an anti-skimming agent in paint
D.	None of these
Answer» C. As an anti-skimming agent in paint

Discussion

159.	/_Thermosplastic materials?
A.	Do not soften on application of heat
B.	Are heavily branched molecules
C.	Are solvent insoluble
D.	None of these
Answer» E.

Discussion

160.	/_Branched chain polymers compared to linear polymers have higher?
A.	Density
B.	Tensile strength
C.	Melting point
D.	Degree of irregularity in atomic packing
Answer» E.

Discussion

161.	/_Vulcanisation of rubber?
A.	Decreases its tensile strength
B.	Increases its ozone & oxygen reactivity
C.	Increases its oil & solvent resistance
D.	Converts its plasticity into elasticity
Answer» E.

Discussion

162.	/_The monomer of natural rubber is?
A.	DMT
B.	Isoprene
C.	2 methyl-1-propene
D.	Both B and C
Answer» E.

Discussion

163.	/_Flexible plastic pipes are made of?
A.	High density polyethylene (HDPE)
B.	Low density polyethylene (LDPE)
C.	Polypropylene
D.	Unsaturated polyester
Answer» C. Polypropylene

Discussion

164.	/_Which of the following is not a natural polymer??
A.	Nucleic acids e.g. RNA and DNA
B.	Polysaccharides
C.	Polyisoprene
D.	Polyurethane
Answer» E.

Discussion

165.	/_In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of?
A.	Cross linked polystyrene
B.	Phenol formaldehyde resins
C.	Polyesters
D.	Polyamides
Answer» B. Phenol formaldehyde resins

Discussion

166.	/_Which of the following is an elastomer??
A.	Thiokol
B.	Phenol formaldehyde
C.	Urea formaldehyde
D.	Polystyrene
Answer» B. Phenol formaldehyde

Discussion

167.	/_Cellulose content in bomboo fibre is about __________ percent.?
A.	10
B.	20
C.	50
D.	85
Answer» D. 85

Discussion

168.	/_Which of the following rubbers has the widest service temperature range (-75 to 275¬¨‚àûC) ??
A.	Butyl rubber
B.	Silicon rubber
C.	Nitrile rubber
D.	Silicone rubber
Answer» E.

Discussion

169.	/_Cellulose is the main contituent of most __________ fibres.?
A.	Acrylic
B.	Spandex
C.	Synthetic
D.	Natural
Answer» E.

Discussion

170.	/_Silicone resins, which are highly water repellant and has good heat resistance can not be used?
A.	As room temperature adhesive
B.	As grease & lubricant
C.	Hydraulic fluid for heat transfer
D.	Resin for lamination
Answer» B. As grease & lubricant

Discussion

171.	/_The monomer of poly vinyl chloride (PVC) is?
A.	Chloroethene
B.	Ethylene dichloride
C.	Ethyl chloride
D.	Chloroform
Answer» B. Ethylene dichloride

Discussion

172.	/_Polyvinyl acetate is never used for making?
A.	Moulded articles
B.	Fibres
C.	Adhesives
D.	All of the above
Answer» B. Fibres

Discussion

173.	/_Bakelite is?
A.	Same as polytetra flouro ethylene (PTFE)
B.	An inorganic polymer
C.	Same as thermoset phenol formaldehyde
D.	Not a polymer
Answer» D. Not a polymer

Discussion

174.	/_Polystyrene is a light, transparent, thermoplastic material used for making?
A.	Toys and combs
B.	Packaging bags
C.	Non-sticking utensils
D.	Electrical insulation
Answer» B. Packaging bags

Discussion

175.	/_Styrene butadiene rubber (SBR) as compared to natural rubber has?
A.	Poor tensile strength
B.	Poorer resistance
C.	Greater amount of heat build up heavy loading
D.	All of the above
Answer» E.

Discussion

176.	/___________ is a homopolymer.?
A.	Neoprene
B.	Bakelite
C.	Nylon-66
D.	Terylene
Answer» B. Bakelite

Discussion

177.	/_Starting material for the production of butadiene in India is?
A.	Naphthalene
B.	Benzol
C.	Ethyl alcohol
D.	Phthalic anhydride
Answer» D. Phthalic anhydride

Discussion

178.	%_Dacron is a/an_%
A.	Polyester
B.	Unsaturated polyester
C.	Polyamide
D.	Inorganic polymer
Answer» B. Unsaturated polyester

Discussion

179.	%_Starting material for the production of butadiene in India is_%
A.	Naphthalene
B.	Benzol
C.	Ethyl alcohol
D.	Phthalic anhydride
Answer» D. Phthalic anhydride

Discussion

180.	%_Styrene butadiene rubber (SBR) as compared to natural rubber has_%
A.	Poor tensile strength
B.	Poorer resistance
C.	Greater amount of heat build up heavy loading
D.	All of the above
Answer» E.

Discussion

181.	%___________ is a homopolymer._%
A.	Neoprene
B.	Bakelite
C.	Nylon-66
D.	Terylene
Answer» B. Bakelite

Discussion

182.	%_Bakelite is_%
A.	Same as polytetra flouro ethylene (PTFE)
B.	An inorganic polymer
C.	Same as thermoset phenol formaldehyde
D.	Not a polymer
Answer» D. Not a polymer

Discussion

183.	%_Polystyrene is a light, transparent, thermoplastic material used for making_%
A.	Toys and combs
B.	Packaging bags
C.	Non-sticking utensils
D.	Electrical insulation
Answer» B. Packaging bags

Discussion

184.	_ Styrene butadiene rubber (SBR) is never used for making$?
A.	Coated fabrics
B.	Front wheel tyres of aeroplanes (i.e., heavy duty tyres)
C.	Gaskets
D.	Soles of shoes
Answer» C. Gaskets

Discussion

185.	_ __________ is a thermosetting plastic.$?
A.	PVC
B.	Polythene
C.	Bakelite
D.	Polystyrene
Answer» D. Polystyrene

Discussion

186.	_ 90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ ¬¨‚àûC.$?
A.	-5
B.	10-30
C.	250-280
D.	500-600
Answer» D. 500-600

Discussion

187.	_ Size range of polymer molecules varies from __________ metre.$?
A.	10‚Äö√Ö¬™¬¨‚â§ to 10‚Äö√Ö¬™‚Äö√Ö¬µ
B.	10‚Äö√Ö¬™‚Äö√Ö¬• to 10‚Äö√Ö¬™‚Äö√Ö‚àë
C.	10‚Äö√Ö¬™¬¨œÄ to 10‚Äö√Ö¬™¬¨‚â§
D.	10‚Äö√Ö¬™‚Äö√Ö‚àè to 10‚Äö√Ö¬™¬¨œÄ‚Äö√Ö‚àû
Answer» B. 10‚Äö√Ö¬™‚Äö√Ö¬• to 10‚Äö√Ö¬™‚Äö√Ö‚àë

Discussion

188.	_ Plasticisers are added to synthetic plastics to$?
A.	Impart flexibility
B.	Improve workability during fabrication
C.	Develop new improved properties not present in the original resin
D.	All of the above
Answer» E.

Discussion

189.	_ Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their$?
A.	Molecular sizes
B.	Magnitude of intermolecular forces
C.	Resistance to heat
D.	Polymerisation mechanism
Answer» C. Resistance to heat

Discussion

190.	_ __________ polythene is most prone to stress-cracking$?
A.	High density
B.	Low density
C.	Cross-linked
D.	Linear low density
Answer» B. Low density

Discussion

191.	_ Vinyl flooring is done using __________ sheets.$?
A.	Polypropylene
B.	PVC
C.	Polythene
D.	Polyvinyl acetate
Answer» C. Polythene

Discussion

192.	_ Polypropylene compared to polythene is$?
A.	Harder
B.	Stronger
C.	Lighter
D.	All of the above
Answer» E.

Discussion

193.	_ Phenol formaldehyde$?
A.	Employs addition polymerisation
B.	Employs condensation polymerisation
C.	Is a monomer
D.	Is an abrasive material
Answer» C. Is a monomer

Discussion

194.	_ Perspex can be used as a substitute of glass. Its monomer is$?
A.	Methyl methacrylate
B.	DMT
C.	Butadiene
D.	Tetrafluroethylene
Answer» B. DMT

Discussion

195.	_ Dacron is a/an$?
A.	Polyester
B.	Unsaturated polyester
C.	Polyamide
D.	Inorganic polymer
Answer» B. Unsaturated polyester

Discussion

196.	_ __________ scrap can be recycled & reutilised.$?
A.	Bakelite
B.	Epoxy resin
C.	Polythene
D.	None of these
Answer» D. None of these

Discussion

197.	_ Alkyd resin can not be used for making$?
A.	Plasticiser
B.	Paint & varnish
C.	Fibres
D.	Film forming materials
Answer» D. Film forming materials

Discussion

198.	_ Which of the following is not a condensation polymer?$?
A.	Bakelite
B.	Melamine polymer
C.	Polymethylmethacrylate (PMMA)
D.	None of these
Answer» D. None of these

Discussion

199.	_ Liners of bags are usually made of$?
A.	Polythene
B.	PVC
C.	Polypropylene
D.	Polyesters
Answer» D. Polyesters

Discussion

200.	_ Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used$?
A.	For surface coating of automobiles & air crafts
B.	For fibre making
C.	As plasticiser for PVC & nitrocellulose
D.	For film forming materials
Answer» C. As plasticiser for PVC & nitrocellulose

Discussion

Explore topic-wise MCQs in Chemical Engineering.

*/*_Size range of polymer molecules varies from __________ metre.?

*/*_90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ ¬¨‚àûC.?

*/*___________ is a thermosetting plastic.?

*/*_Styrene butadiene rubber (SBR) is never used for making?

*/*___________ polythene is most prone to stress-cracking?

*/*_Vinyl flooring is done using __________ sheets.?

*/*___________ scrap can be recycled & reutilised.?

*/*_The main use of butadiene is?

*/*_Thermosplastic materials?

*/*_Branched chain polymers compared to linear polymers have higher?

*/*_Vulcanisation of rubber?

*/*_The monomer of natural rubber is?

*/*_Flexible plastic pipes are made of?

*/*_Which of the following is not a natural polymer??

*/*_In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of?

*/*_Which of the following is an elastomer??

*/*_Cellulose content in bomboo fibre is about __________ percent.?

*/*_Which of the following rubbers has the widest service temperature range (-75 to 275¬¨‚àûC) ??

*/*_Cellulose is the main contituent of most __________ fibres.?

*/*_Silicone resins, which are highly water repellant and has good heat resistance can not be used?

*/*_The monomer of poly vinyl chloride (PVC) is?

*/*_Polyvinyl acetate is never used for making?

*/*_Bakelite is?

*/*_Polystyrene is a light, transparent, thermoplastic material used for making?

*/*_Styrene butadiene rubber (SBR) as compared to natural rubber has?

*/*___________ is a homopolymer.?

*/*_Starting material for the production of butadiene in India is?

%_Dacron is a/an_%

%_Starting material for the production of butadiene in India is_%

%_Styrene butadiene rubber (SBR) as compared to natural rubber has_%

%___________ is a homopolymer._%

%_Bakelite is_%

%_Polystyrene is a light, transparent, thermoplastic material used for making_%

_ Styrene butadiene rubber (SBR) is never used for making$?

_ __________ is a thermosetting plastic.$?

_ 90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ ¬¨‚àûC.$?

_ Size range of polymer molecules varies from __________ metre.$?

_ Plasticisers are added to synthetic plastics to$?

_ Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their$?

_ __________ polythene is most prone to stress-cracking$?

_ Vinyl flooring is done using __________ sheets.$?

_ Polypropylene compared to polythene is$?

_ Phenol formaldehyde$?

_ Perspex can be used as a substitute of glass. Its monomer is$?

_ Dacron is a/an$?

_ __________ scrap can be recycled & reutilised.$?

_ Alkyd resin can not be used for making$?

_ Which of the following is not a condensation polymer?$?

_ Liners of bags are usually made of$?

_ Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used$?

/_Size range of polymer molecules varies from __________ metre.?

/_90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ ¬¨‚àûC.?

/___________ is a thermosetting plastic.?

/_Styrene butadiene rubber (SBR) is never used for making?

/___________ polythene is most prone to stress-cracking?

/_Vinyl flooring is done using __________ sheets.?

/___________ scrap can be recycled & reutilised.?

/_The main use of butadiene is?

/_Thermosplastic materials?

/_Branched chain polymers compared to linear polymers have higher?

/_Vulcanisation of rubber?

/_The monomer of natural rubber is?

/_Flexible plastic pipes are made of?

/_Which of the following is not a natural polymer??

/_In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of?

/_Which of the following is an elastomer??

/_Cellulose content in bomboo fibre is about __________ percent.?

/_Which of the following rubbers has the widest service temperature range (-75 to 275¬¨‚àûC) ??

/_Cellulose is the main contituent of most __________ fibres.?

/_Silicone resins, which are highly water repellant and has good heat resistance can not be used?

/_The monomer of poly vinyl chloride (PVC) is?

/_Polyvinyl acetate is never used for making?

/_Bakelite is?

/_Polystyrene is a light, transparent, thermoplastic material used for making?

/_Styrene butadiene rubber (SBR) as compared to natural rubber has?

/___________ is a homopolymer.?

/_Starting material for the production of butadiene in India is?