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13 questions
The synthetic fibres are also called _____________.
Man-made fibres
plant fibres
nylon fibres
none of these
The word polymer comes from a _______word.
Latin
Greek
Tamil
English
____________fibre is called artificial silk.
Nylon
Rayon
Polyester
chemical silk
Nylon was made in _________without using any natural raw material.
water
1931
2001
none of these
The full form of PET is___________________________.
Polyethylene Terephtalate
Polyethylene Terephthalate
PolyTerephthalate
PET has no full form
Plastic reacts with diluted acids
True
False
Low density Polythene is used to make___________.
Flexible pipes
Dustbins
Bags
Containers
Thermoplastics have ___________________arrangement.
linear
crosslinked
Teflon can resist flame, water, and oil, It is a ________________.
Thermosetting plastic
Thermoplastic
Bakelite is used to make _________________.
Handles of cookware
crockeries
floor tiles
fireman clothing
Disposable cups ,bowls, plates are made from _______________.
Polythene
PVC
Polystyrene
Melamine
____________plastics can be reheated and remolded.
Thermo
Thermosetting
Semi
____________is one of the 4Rs.
Recover
Regenerate
Rescue
none of these
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