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Worksheetssynthetic fibres and plastics
Total questions: 30
Worksheet time: 15mins
How are synthetic fibres made
By using plants
By using petrochemicals
By using humans
By using plastics
Nylon is not used for making
ropes for climbing
blankets
Parachutes
Seat belts in cars
Synthetic fibre made from coal, water and air is
Rayon
Nylon
Acrylic
Polyester
The smallest unit in making synthetic fibres is
Monomer
Wood pulp
Molecule
Polymer
The synthetic fibre which resembles silk in texture is
Nylon
Rayon
Acrylic
Polyester
The fibre that burns with the smell of burning paper is
Wool
Nylon
Cotton
Acrylic
Rayon is mixed with cotton to make
Carpets
Sweaters
Bed sheets
Socks
Which fibre is generally called fake fur
Nylon
Polyester
Acrylic
Rayon
Which is the strongest fibre in the following:
Wool
Nylon
Terrylene
Acrylic
Fabric is made up of
Steel
Iron
Fibre
None of these
PET is a type of
Nylon
Rayon
Acrylic
Polyster
Why plastic is used in aircraft and spaceship.
Plastics are lighter compared to metals.
Plastics are cheaper.
Plastics are easy to handle.
Plastic can be recycled.
Which one of the following is non-biodegradable material?
paper
metal cans
cotton cloth
wood
Plastics are poor conductor of
Air
heat and electricity
water
none of these
What is PET?
Polyester
Polyester and Terylene
Poly Ethene Tetraphthalate
Poly Ethene Terylene
Choose the odd one out.
Nylon
Rayon
Silk
Acrylic
Atul was climbing mountain and he wondered about the strength of rope in his hand which was stronger than a steel wire. This rope would have been made up of:
Polyester
Nylon
Rayon
Cotton
Acrylic fiber is
Spandex is also known as
elastane
lycra
both a and b
none of these
Which of the following statements are / is incorrect about synthetic fibers ?
they dry quickly
less expensive
they are light , easy to wash
they are weak and elastic
We should not wear synthetic clothes while working in in the kitchen or in a laboratory because
Synthetic clothes are very costly.
Stain on synthetic clothes are hard to clean /wash.
If the synthetic clothes catch fire,the fabric melts and sticks to the body of the person wearing it
Both A and B
Uniforms of firemen are made of _______ plastic to make them flame resistant.
Teflon
Melamine
Bakelite
PVC
Which of the below correctly states 4 R principle.
Reduce, Reuse, Retire and Recover
Reduce, Reuse, Recycle and Recover
Release, Reflect, Reuse and Reduce
Reactive, Reuse, Recycle and Recover
The common characteristic properties plastics are
Durable, good conductor of electricity, and non-reactive
Good conductor of heat, light in weight, and good conductor of electricity
Durable, light in weight, and non-reactive
Durable, good conductor of heat, and non-reactive
