Polymer Technology MCQ

Test your knowledge with important Polymer Technology MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Polymer Technology MCQs at Bissoy

• β - glucose is the monomer of
  ক

  Cellulose

  খ

  Starch

  গ

  Protein

  ঘ

  None of these
• Softening point of high density polythene is about __________ °C.
  ক

  85

  খ

  135

  গ

  165

  ঘ

  205
• Acrilan fibres used for making cloth, carpet & blankets, which is a hard, horny & high melting polymeric material is nothing but
  ক

  Polyacrylonitrile

  খ

  Polyamide

  গ

  Saturated polyester

  ঘ

  Alkyd resin
• Polypropylene compared to polythene is
  ক

  Harder

  খ

  Stronger

  গ

  Lighter

  ঘ

  All of the above
• Plastic tubes & pipes are generally made by __________ moulding.
  ক

  Injection

  খ

  Transfer

  গ

  Extrusion

  ঘ

  Compression
• Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is
  ক

  Nylon-66

  খ

  Teflon

  গ

  Polyester

  ঘ

  Bakelite
• Rayon is superior to cotton in making gauge for wound treatment, because rayon
  ক

  Is a synthetic polymer

  খ

  Does not stick to the wound unlike cotton

  গ

  Can absorb over 90% of its own weight of water

  ঘ

  Both B & C
• Which of the following is an inorganic polymer?
  ক

  Teflon

  খ

  Perspex

  গ

  Silicones

  ঘ

  Bakelite
• Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex?
  ক

  Ammonium alum

  খ

  Potassium alum

  গ

  Both A & B

  ঘ

  Neither A nor B
• Tyres are made by
  ক

  Injection moulding

  খ

  Extrusion

  গ

  Rotational moulding

  ঘ

  Compression moulding
• The rate controlling step in the manufacture of silicone rubber is the
  ক

  Polymer termination step

  খ

  Condensation of siloxane to silicone

  গ

  Initial hydrolysis of silicone monomer

  ঘ

  None of these
• Branched chain polymers compared to linear polymers have higher
  ক

  Density

  খ

  Tensile strength

  গ

  Melting point

  ঘ

  Degree of irregularity in atomic packing
• 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
  ক

  Densities

  খ

  Melting point

  গ

  Tensile strength

  ঘ

  Hardness, rigidity & brittleness
• Nylon 6 as compared to nylon 6, 6 has lower
  ক

  Abrasion resistance

  খ

  Thermal stability

  গ

  Adhesion to rubber

  ঘ

  Hardness
• __________ practically possess no elasticity.
  ক

  Vulcanite or ebonite

  খ

  Spandex fibre

  গ

  Polysulphide rubber

  ঘ

  Epoxy resin
• Thiokol is nothing but
  ক

  Polysulphide rubber

  খ

  Polyamide fibre

  গ

  Engineering plastic

  ঘ

  Exponded polystyrene
• Thermosplastic materials
  ক

  Do not soften on application of heat

  খ

  Are heavily branched molecules

  গ

  Are solvent insoluble

  ঘ

  None of these
• Thermoplastic resins usually
  ক

  Remain hard as long as they are hot

  খ

  Can not be reclaimed from waste

  গ

  Permanent setting resins

  ঘ

  Less brittle than thermosetting resins
• Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is
  ক

  Ni

  খ

  V₂O₅

  গ

  Fe

  ঘ

  Aluminium triethyl combined with titanium tetrachloride
• The main use of butadiene is
  ক

  As a plasticiser for unsaturated polyester

  খ

  In the manufacture of synthetic rubber

  গ

  As an anti-skimming agent in paint

  ঘ

  None of these
• In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer?
  ক

  PTFE

  খ

  Buna-S

  গ

  PMMA

  ঘ

  Polycaprolactum
• Which of the following is a copolymer?
  ক

  PVC

  খ

  Bakelite

  গ

  Polythene

  ঘ

  Teflon
• Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces
  ক

  Epoxy resin

  খ

  Polyamide

  গ

  Alkyd resin

  ঘ

  Phenolic resin
• Which of the following is generally not used as eord for synthetic rubber tyre casing?
  ক

  Dacron

  খ

  Nylon

  গ

  Cellulose

  ঘ

  None of these
• Synthetic rubber
  ক

  Deforms, if stretched to double of its original dimension

  খ

  Is brittle at low temperature

  গ

  Is softer at higher temperature

  ঘ

  Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases
• Which of the following polymers is used for making a non stick coating on frying pans?
  ক

  Bakelite

  খ

  Teflon

  গ

  Perspex

  ঘ

  PVC
• Alkyd resin can not be used for making
  ক

  Plasticiser

  খ

  Paint & varnish

  গ

  Fibres

  ঘ

  Film forming materials
• Valcunisation of rubber decreases its
  ক

  Tensile strength

  খ

  Resistance to organic solvents

  গ

  Tackiness

  ঘ

  Working temperature range
• Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its
  ক

  Elasticity

  খ

  Strength

  গ

  Plasticity

  ঘ

  Weathering characteristics
• Bristles of tooth brushes are made of
  ক

  Nylon-6

  খ

  Nylon-66

  গ

  Polystyrene

  ঘ

  PVC