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Plastic Materials – MCQ

1. Plastics are examples of

a) Elastomers.
b) Corrosive materials.
c) Anhydrides.
d) Polymeric materials.

2. The material which provides maximum elasticity to plastics is

a) Filler.
b) Solvent.
c) Accelerator.
d) Elastomer.

7. Which of the following constituent is added to achieve desired color of the plastics

a) Plasticizer.
b) Pigment.
c) Catalyst.
d) Lubricant.

3. Plasticizers are used to modify plastic to impart

a) Flexibility
b) Toughness
c) Strength
d) All of these

4. Macromolecules are molecules of colloidal dimensions of the order of

a) 10^-6 to 10^-12 mm.
b) 10⁶ to 10¹² mm.
c) 10^-3 to 10^-6 mm.
d) 10³ to 10⁶ mm.

5. Camphor in plastic is used for

a) Resin.
b) Plasticizer.
c) catalyst.
d) filler.

6. Filler is added with plastic to increase its

a) Tensile strength.
b) Opacity.
c) Bonding.
d) All of these.

8. The undesirable properties of plastic is –

a) It has low ductility and melting point.
b) Shock-absorbing material.
c) Light in weight.
d) Corrosion resistance.
e) Not attacked by fungi.

9. The most common pigment used in plastic is

a) Camphor.
b) Ester.
c) Mica.
d) Baryte.

Which of the following is an example of thermoplastic?

a) PVC.
b) Bakelite.
c) Polyethylene.
d) Both (a) and (c).

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