Online Test — Synthetic Fibres and Plastics
15 Questions • 15 min • Chapter MCQ
15:00
Question 1 of 15
A thin, thread-like strand used to make fabrics is a:
Fibre
Metal
Mineral
Polymer unit
Explanation: A fibre is a thread-like strand from which fabrics are made.
Question 2 of 15
Which of these is a natural fibre?
Nylon
Polyester
Cotton
Acrylic
Explanation: Cotton is obtained from a plant, so it is a natural fibre.
Question 3 of 15
Synthetic fibres are mostly made from chemicals obtained from:
Petroleum
Cotton plants
Sheep
Silkworms
Explanation: Synthetic fibres are made from petrochemicals obtained from petroleum.
Question 4 of 15
The single small unit that joins to form a polymer is a:
Monomer
Polymer
Fibre
Atom only
Explanation: Monomers join together to form a polymer.
Question 5 of 15
A polymer is a:
Single small molecule
Long chain of many monomers
Type of metal
Mixture of gases
Explanation: A polymer is a large molecule made of many repeating monomer units.
Question 6 of 15
Rayon is made from:
Wood pulp
Petroleum only
Wool
Sand
Explanation: Rayon is made from wood pulp and is called artificial silk.
Question 7 of 15
The first fully synthetic fibre, very strong and used in parachutes, is:
Rayon
Nylon
Cotton
Jute
Explanation: Nylon was the first fully synthetic fibre; it is strong and used in parachutes and ropes.
Question 8 of 15
Which synthetic fibre does NOT crease easily and is good for dress material?
Acrylic
Rayon
Polyester
Wool
Explanation: Polyester does not wrinkle easily, so it is ideal for clothes.
Question 9 of 15
The synthetic fibre that resembles wool is:
Nylon
Acrylic
Rayon
Polyester
Explanation: Acrylic resembles wool and is used for sweaters and blankets.
Question 10 of 15
PET, used to make plastic bottles, is a type of:
Nylon
Polyester
Rayon
Acrylic
Explanation: PET is a polyester used for bottles and containers.
Question 11 of 15
Plastics that soften on heating and can be remoulded are called:
Thermoplastics
Thermosetting plastics
Natural fibres
Metals
Explanation: Thermoplastics soften on heating and can be remoulded (e.g. polythene, PVC).
Question 12 of 15
Bakelite and melamine are examples of:
Thermoplastics
Thermosetting plastics
Natural fibres
Metals
Explanation: Bakelite and melamine are thermosetting plastics that cannot be remoulded.
Question 13 of 15
Bakelite is used for electrical switches because it is a:
Good conductor of electricity
Poor conductor of heat and electricity
Magnet
Natural fibre
Explanation: Bakelite is a poor conductor of heat and electricity, making switches safe.
Question 14 of 15
A major environmental problem with plastic is that it is:
Biodegradable
Non-biodegradable
Edible
A good fuel only
Explanation: Plastic is non-biodegradable, so it stays in the environment for a long time.
Question 15 of 15
Which set of actions helps reduce plastic pollution?
Reduce, Reuse, Recycle, Recover
Burn all plastic openly
Throw plastic in rivers
Use more single-use plastic
Explanation: The 4 R's — Reduce, Reuse, Recycle, Recover — help cut plastic pollution.