Which of these is not natural fiber?
(a) cotton
(b) jute
(c) rayon
(d) silk
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Silk fiber are made up of:
(a) Vitamin
(b) Carbohydrates
(c) Protein
(d) Non of these
The natural fibres are made from simple molecule that is known as
(a) Plastics
(b) Cellulose
(c) Polymer
(d) Monomer
The major raw materials for rayon is obtained from
(a) wood
(b) coal
(c) petroleum
(d) both coal and petroleum
Acrylic is an artificial wool.
(a) true
(b) false
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Plastics are light, strong and durable
(a) true
(b) false
Which type of glass is used for making glass reinforced plastic?
(a) Fiber glass
(b) Quartz glass
(c) Flint glass
(d) Pyrex glass
Which out of the following is used for making disposable cups?
(a) LDPE
(b) PS
(c) PP
(d) PVC
Which of the following is not a thermoplastic polymer?
(a) Nylon
(b) PVC
(c) Polythene
(d) Bakelite
Parachutes and ropes for rock climbing are made from ___
(a) jute
(b) nylon
(c) artificial silk
(d) terylene
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Which of the following plastics is used in the making of thermocol ?
(a) Polyethylene
(b) High density polyethylene
(c) Polypropylene
(d) Polystyrene
First fully synthetic fiber was ___
(a) polyester
(b) terylene
(c) nylon
(d) rayon
Which of the following products can’t be decomposed easily?
(a) Acrylic
(b) Polyethene
(c) Plastic
(d) All of the above
Which is an example of thermosetting plastics?
(a) Polystyrene
(b) Polythene
(c) Bakelite
(d) PVC
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Which one is natural fiber?
(a) Olefin
(b) Rayon
(c) Acrylic
(d) Wool
Which of the following materials takes the longest to degenerate?
(a) paper
(b) cotton cloth
(c) tin can
(d) plastic bags
Coating of melamine plastic is used as :
(a) good conductor of heat
(b) strong and durable
(c) fire proof plastic
(d) plastic cookware
Silk fiber is obtained from
(a) silk moth
(b) silk plant
(c) butterfly
Which of the following is non-biodegradable:
(a) plastic
(b) cotton
(c) paper
(d) leftover food stuff
The raw materials used to prepare synthetic fibers like polyester and acrylic is:
(a) wood pulp
(b) coconut jute
(c) petrochemicals
(d) paper pulp
What is the main disadvantage of synthetic fiber?
(a) cause pollution
(b) are costly
(c) not durable
(d) are heavy
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Which type of cloth dries faster in the rainy season?
(a) Cotton
(b) Wool
(c) Polyester
(d) Silk
PVC is an example of:
(a) polyethene
(b) thermoplastic
(c) thermosetting plastic
(d) acrylic
Plastics find extensive use because:
(a) plastic is a polymer
(b) plastic has a linear arrangement of units
(c) it is easily mouldable
(d) it is synthetic
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Which synthetic fiber can be stronger than steel wire?
(a) Wire made of rayon
(b) Wire made of nylon
(c) Wire made of polywool
(d) Wire made of polycot
Nylon is useful because of the following properties:
(a) soft, strong and light
(b) transparent, light and easy to wash
(c) strong, elastic and light
(d) hard, inexpensive and strong
PET is a familiar form of:
(a) plastic
(b) polyester
(c) acrylic
(d) rayon
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Synthetic fibers are made by _____.
(a) trees
(b) insects
(c) human beings
(d) soil
Nylon is obtained from:
(a) Coal
(b) air
(c) Water
(d) all of the above
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Which of the following properties of plastic makes it most convenient to use?
(a) It is non-reactive
(b) Light, strong and durable
(c) Easily remouldable
(d) All of the above
