A. 0.38
B. 0.56
C. 0.81
D. 0.91
Correct Answer: 0.91 ✔
Last Updated: March 08, 2019
Related MCQs
- Condensation polymerisation of caprolactam is carried out in the reactor maintained at a temperature of __________ °C for producing nylon-6?
- Scouring is a finishing operation during the manufacture of fibre, which aims at __________ of fibres?
- In condensation polymerisation as compared to addition polymerisation__________?
- Polyvinyl acetate is never used for making__________?
- Thermosetting resins/polymers as compared to thermoplastic ones are __________?
- Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA) ?
- In case of wet spinning of polymers, the polymer solution is forced through spinnerates into, a coagulating bath to give a filament form. Wet spinning is not used in case of the __________ fibres?
- Melamine formaldehyde resin which has a very high anti tacking properties, is not used for the __________?
- Thermal pyrolysis of ethylene dichloride produces __________?
- In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher __________?
- Catalyst used in the production of high density polythene by low pressure Ziegler process is __________?
- Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is__________?
- Elastomers are__________?
- The generic chemical name for the class of polymers which are commercially known as nylons is__________?
- Phthalic anhydride is used__________?
- The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is__________?
- Polycaprolactam is also known as __________?
- Melt spinning of polymers involves the forcing of polymer melt through spinnerates (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres?
- Flexible foam (for mattresses) are usually made of __________?
- Which of the following is not a natural polymer ?
- Which of the following is a natural polyamide fiber?
- Synthetic rubber__________?
- __________ is a natural fiber?
- Vulcanisation of rubber does not increase its__________?
- Phenol formaldehyde is produced by condensation polymerisation. It is also known as__________?
- Vulcanisation of rubber does not increase its__________?
- __________ is a thermosetting plastic ?
- Which of the following is a polymer of Hexamethylene diamine and adipic acid ?
- Which of the following polymers shows the highest anti-tacking properties ?
- Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser ?
- Polycaprolactam is nothing but __________?
- Poly Vinyl chloride (PVC) is a __________ material?
- __________ moulding is used for shaping of thermosetting plastics exclusively?
- Cellulose is the main constituent of most __________ fibres?
- The monomer of natural rubber is A. DMT __________?
- Starting material for the production of SBR is __________?
- Polymerisation process in which two or more monomers of chemically different nature take part is called__________?
- Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene?
- All thermoplastic, thermosetting & elastic materials can be processed in a extrusion machine, however it cannot be used for the production of plastic__________?
- Plasticisers are added to synthetic plastics to __________?
- Paper like thin plastic articles can be produced by__________?
- Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to __________?
- Main constituent of natural rubber is__________?
- Vinyl flooring is done using __________ sheets?
- Which of the following polymers does not belong to the class of Polyacrylate polymer ?
- Pick out the correct statement ?
- Viscose rayon is __________?
- Branched chair polymers as compared to linear polymers have __________?
- __________ scrap can be recycled & reutilised?
- Which of the following is a copolymer ?
- Polyvinyl chloride (PVC) is __________?