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Q 1. Process through which artificial silk or rayon can be produced is
Cupro ammonium process
Cellulose acetate process
Viscose process
All of these
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Q 2. Which of the following is not a synthetic fibre?
Nylon
Wool
Rayon
PVC
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Q 3. Uses of rayon are
Manufacture of carpets
To make smooth silky clothes
Manufacture of automobiles tyres
All of these
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Q 4. Synthetic fibre is preferred over natural fibre due to
Durability
Easy availability
Cheap
All of these
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Q 5. Soft drinks and baby feeding bottles are generally made up
Polyester
Polyamide
Polystyrene
Polyurea
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Q 6. Orlon is a polymer of
Styrene
Tetra fluoroethene
Vinyl chloride
Acrylonitrile
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Q 7. Examples of Biodegradable Polymers are
Aliphatic polyesters
Nylon-2- Nylon 6
Poly glycolic acid & PHBV
All of these
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Q 8. Polymers can be copolymer if
monomers are of more than one kind
monomeric units linked together to form 3-dimensional network.
Some examples are Malamine, Bakelite
All of these
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Q 9. Radios, telephones, clocks etc are made up of _______
Malamine
Bakelite
Both of these
None of these
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Q 10. These polymers cannot be recycled :
Thermoplastics
Thermosets
Elastomers
All polymers
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Q 11. Teflon is well known for its :-
Antistick property
Is bad conducter of electricity
It is used as a lubricant in machine where Oil cannot be easily applied
All of these
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Q 12. The plastic whose sheets are used for packing liquids is
Polythene
Polystyrene
Bakelite
Teflon
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Q 13. From which plastic material is thermocol made?
Polythene
Polystyrene
Bakelite
Teflon
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Q 14. To which of the following 4R principle applymost?
Synthetic fibre
Natural fibre
Plastic
Metals
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Q 15. Which of the following does not decompose?
jute
cotton
plastic
wool
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Q 16. Which of the following is used in automobile battery casings ?
HDPE
PP
PVC
Polyester
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Q 17. The process of obtaining jute fibres from its stem is known as-
bales.
gunning
bobbing
retting
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Q 18. Flax is a kind of
animal skin
synthetic fibre
plant
none of these
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Q 19. Which thing is made from cotton ?
Nylon
Terylene
Rayon
Acrylic
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Q 20. A woman was wearing a silk saree and a woollen shawl from Tibet and carrying a purse of India goat fur.
Read the following statements.
a. Silk fiber is made up of protein and is produced by silk worm.
b. Silk fiber is made up of carbohydrates and is produced by silk worm caterpillars.
c.Yak is an animal which produces wool.
d. Woolly dog yields very fine wool.
e. Goats are normally sheared during winter season when hair growth is maximum
Select the alternative which includes all the correct statements.
b, c, d
a, c
a, b, d, e
a, c, e
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Q 21. The clothes made from which of the following fibers will take lesser time than others to dry if soaked in water ?
Silk
Wool
Cellulose
Rayon
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Q 22. The fiber synthesized by man in the beginning is
Rayon
Nylon
Polyester
Rexin
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Q 23. Which is the natural fiber from the following ?
Jute
Acrylinc
Nylon
None of these
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Q 24. Match thefollowing:
| Column I | Column II |
|---|---|
| A. Rayon | (i) used for making sweaters |
| B. Nylon | (ii) made up of large number of glucose unit |
| C. Acrylic | (iii) Obtained from wood pulp |
| D. Cellulose | (iv) Used for making parachutes & socks |
A-ii, B-i, C-iv, D-iii
A-iii, B-iv, C-i, D-ii
A-i, B-ii, C-iv, D-iii
A-iv, B-iii, C-ii, D-i
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Q 25. Which of the following has the same monomer unit ?
Nylon and cellulose
Polyester and nylon
Rayon and nylon
Cellulose and rayon