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Synthetic Fibres and Plastics - III

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Which of the following synthetic fibers is used for finishing of high quality Guitars and Pianos?

  1. Nylon

  2. Rayon

  3. Polyester

  4. Acrylic


Correct Option: C

Which of the following is not a constituent of Acrylic fiber?

  1. Acrylonitrile

  2. Methyl acrylate

  3. Vinyl acetate

  4. Acryloacetate


Correct Option: D

Which among the following is not a property of thermoplastics?

  1. Weak Vander Wall's forces

  2. Melts upon heating

  3. Low Molecular weights

  4. Addition polymer


Correct Option: C

Which of the following is not an example of thermoset plastics?

  1. Vulcanized rubber

  2. Melamine

  3. Bakelite

  4. Polystyrene


Correct Option: D

The strings of guitar are made up of which of the following fibers?

  1. Nylon

  2. Polyester

  3. Rayon

  4. Acrylic


Correct Option: A

Which amongst the following is not the property characterized by vulcanized rubber?

  1. It does no melt upon heating

  2. It is resistant to chemical attack

  3. It is an insoluble thermoset polymer

  4. It possesses weak covalent bonds


Correct Option: D

Which of the following statement is incorrect about plastics?

  1. Plastics are costlier than metals

  2. Plastics are light in weight

  3. Plastics are highly durable

  4. Plastics do not get corroded easily


Correct Option: A

The smallest repeating unit for the formation of large polymers is known as_______

  1. Monomer

  2. Repeating unit

  3. Polythene

  4. Dimer


Correct Option: A

Regenerated fibre is

  1. cotton

  2. rayon

  3. nylon

  4. decaron


Correct Option: B

Which of the following is a fire proof plastic?

  1. Teflon

  2. Melamine

  3. Polythene

  4. Polystyrene


Correct Option: B

What does PET stand for?

  1. Polyethylene triacetate

  2. Polyethylene tetracetate

  3. Polyethylene terephthalate

  4. None of the above


Correct Option: C

Why do electric wires have a plastic covering?

  1. Because plastics are good conductor of heat.

  2. Because plastics are good conductor of electricity.

  3. Because plastics are bad conductor of electricity.

  4. Because plastics are bad conductor of heat.


Correct Option: C

Which property of melamine plastics enables them to make fire men uniform?

  1. Bad conductor of heat

  2. High tensile strength

  3. Resistance to fire

  4. Light weight and durability


Correct Option: C

Why is disposal of plastics a major problem?

  1. It is a degradable substance.

  2. It is a non-biodegradable substance.

  3. It is a biodegradable substance.

  4. It is a reusable substance.


Correct Option: B

Which of the following properties is not possessed by Rayon?

  1. Smooth

  2. Insulate body heat

  3. Cool

  4. Highly adsorbent


Correct Option: B

Which of the following is another name for Rayon?

  1. Artificial silk

  2. Viscose rayon

  3. Cellulosic fiber

  4. All the above


Correct Option: D

The monomer used for the formation of polythene is_______

  1. Propene

  2. Ethene

  3. Ethyne

  4. Ethane


Correct Option: B

Nylon is formed by the condensation of

  1. adipic acid and hexamethylene diamine

  2. formaldehyde and phenol

  3. formaldehyde and styrene

  4. acrylonitrile


Correct Option: A

Which of the following fibres is chemically identical to cotton fibres?

  1. Rayon

  2. Nylon

  3. Silk

  4. Polyester


Correct Option: A

Which of the following is not a type of Nylon?

  1. Nylon 6, 6

  2. Nylon 6

  3. Nylon 6, 12

  4. Ballistic Nylon


Correct Option: C

Which of the following is not a non-biodegradable substance?

  1. Plastic bag

  2. Woollen clothes

  3. Tin

  4. Aluminium


Correct Option: B
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